291 camel hump heads. 500" lift Intake and 202 CFM Exhaust With a 3.

291 camel hump heads A few points to consider if your planning on using a pair of double hump GM heads. After 1970, all of the Camel hump heads vs vortec heads. I'm trying to stick with the vintage look and theme for my Camel Hump Heads Long ago, and I mean long ago, I knew all this stuff by memory. Big Block 291 heads used in 70 were originally equipped with R43T spark plugs. He claims over 300hp with the heads that are on it. Profile Page. 94 inch intake and 1. Remanufactured. i. My question is two fold: . with the introduction of the vortec heads, the camel hump is becoming a once again popular choice for a hot little small block mill, and there you have it . I bought a '65 K10 with 8k "rebuilt" 357 SBC. This was a considerable improvement over the other head that came stock. 450" valve lift b/c you can hurt it at rpm AND the little sucker CAN go above 8,000 rpm EASY!!!!! Otherwise, it's 4" domed pistons and my good big valve -291 heads to make another junk301. 94 modified to 2. 02 Double Hump SBC Cylinder Heads PN 8782461 at the best online prices at eBay! Free shipping for many products! This casting is known as a “camel hump” or “camel back” head due to the double humps cast into the ends of the head. I've spent a lot of time porting and testing iron heads. OEM Original Small Block Chevy Cylinder Heads 327 350 Truck C10 C20. KENTON. If you building a period specific engine or restoration such as a 350hp/327 they do the trick. 50 & 2. Unless you are running hard lifters and a low rear end,4:56/4:88 your engine will never use the port size in the 194 heads. 60). Description: A : Rectangle 460 Large “camel humps” 291, 461, 461X, 462: Original hi-perf or “fuelie” heads; chamber sizes are 62-64cc; both 1. 94 & E-1. The standard 64 and later 461 and all the subsequent hipo heads( 462, 291, 040, 041, 186, 492) came either 1. The easiest way to reference any production head is with the last three digits of its casting number. item 3 GM 3917291 Cylinder Head Small Block Chevy Camel Hump 291 F-18-7 1967 GM 3917291 Cylinder Head Small Block Chevy Camel Hump 291 F-18-7 1967. Sent from These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, 370, & 492. And virtually any new-tech head will make at least 30 HP more than the old camel hump heads. 60s. 36 gear, 700R4 with a 1800-2200 converter, shifter left in D shifting btween 5300-5400 RPM, with the camel humps it went 12. They used 14mm 3/8" reach gasketed spark plugs. The 041X heads are complete. 05 shipping. 48 watchers. 05 valves in them? Other engine specs SBC With pocket porting and port matching, they're still a damn good head. The 291 castings were mainly produced in 68, although a few may have been used The 55 is 60's themed and went with a set of 291 camel hump heads. My machine shops friends say its the improved design oh the machined aluminum chambers With the introduction of the vortec heads, the camel hump is becoming a once again popular choice for a hot little small block mill, and in my opinion is the head of choice for a screamin small journal mill. 46" Dual Springs at 160/420+ spring pressure with steel Chevy Double Hump Fuelie Heads T he “double hump” or “fuelie” heads have been around since the 1960’s. What do you think of these heads I currently have a . 51 watchers. The Vortec's are even a better proposition after you The VERY, VERY, VERY first heads with the double humps, as already mentioned, were introduced in 1961 on the 315hp/283 with Fuel Injection. 60" big valve double-hump heads on a 283 is to NOT go over the about . Of course now someone is going to come and post how double hump heads w/ a 3/4 "race" cam is better bullshit. An Authentic Aluminum Reproduction of Chevy’s Camel Hump “Fuelie” Heads. In the 60's if you built a 283 based engine with camel hump heads you were running raided dome pistons of some sort and higher compression ratio. The casting numbers are 327186 and 3782461. They are still used in a variety of applications. Certainly Chevy's later performance heads are better, but the BEST performance SB heads are aftermarket versions. The roller cam and AFRs went Find many great new & used options and get the best deals for GM 1967 1968 1969 Chevy SBC 302 327 Camaro Corvette 291 Heads Fuelie Camel Hump at the best online prices at eBay! Free shipping for many products! GM Chevrolet 302 327 350 461 Camel Hump SBC Cylinder Heads PAIR 3917291 Camelbac. 714 posts · Joined 2005 Add to quote; Only show with the introduction of the vortec heads, the camel hump is becoming a once again popular choice for a hot little small block mill, and there you have it . Upgrade your engine's performance with our remanufactured Casting #291 Camel heads, designed for high-performance vehicles, specifically Corvettes from late '67. Original Double Hump Chevy Sbc Head . 060", heads step cut for 1. Porting can increase The head was cleaned and checked for cracks when he got it in and it was found to be a good core for rebuilding. Known mainly by the last 3 digits of their casting number, the most common ones to be found will be the: 461, 462,186, 291, and 492 . Next comes the 492 castings, next the 461, then 186, then 041s which are not camel humps but have the same design. The 291 heads are later 60's and generally are high performance. I think 305 heads have 58CC combustion chambers, and the above named heads have 62-65 CC combustion chambers. I see you've got new heads ( Flow Tech Camel Humps). Taboo56Chevy, Jun 7, 2019. derosnopS. Thank's again item 8 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. I see the plugs are Autolite 26s and the newer, smaller 5/8 size. If you look at the casting numbers and date codes on the heads you can get a better idea of the original application. 388 193. These heads made around 530 Horsepower on a 400 Small Block built very mildly. getting something else. camel hump hp small block heads. Valve sizes are 1. Some of the casting numbers you see the most are 461 (no I'm going to have some work done on old 461 Double Hump Heads that currently sit stock with a (I-1. 60 Valves GM 3782461 Cylinder Heads Small Block Chevy Camel Hump March 65 2. 500 lift. Hobbies › Car Engines & Parts. 1949-53 8ba 291 Ford Flathead Mercury 24 Stud Finned Heads Complete Rebuild. $1000. delcoenginesandcomponents (236) 93. 77 at Famoso. I beleive the weird volumes in the #461 & 291 heads are due to using the only spare valve I had on both heads. 0 inch bore on the 327 and 350 that these heads were designed for. 170cc intake port for the 461x vs 160cc for the 461. off the nose of your car vs. The camel hump heads never came on any 283's, they were 327 and up. I spent 2000 for a full comp port job, intake runner work, opened to 1205 fel pro, bowl work, chamber work, 2. Only the TRUE "FUELIE" heads and 327"-350HP of the same casting #'s had 2. These heads will fit all 265, 283, 302, 305, 307, 327, 350, & 400 small block Chevy engines from 1955 to 1986 with no modifications (steam holes will need to be drilled for a 400) and 1987-1999 with correct intake One thing i havent seen posted yet is most all of the early camel humps 461's and 462's (and 291? i think) alike are 1. There may be some castings that flow 203-205 CFM but the Vortec out flows all of them out of the box. '67 Heads with tall casting marks were identified as 291-, 461-, 461X- and 462 castings and did not have accessory bolt holes. have umbrella style valve stem seals. 291 164. 6-inch valves. -----69 Camaro Z28 "clone" - 327 AT "461" camel back heads, edelbrock, hooker, ultradyne, TRW etc. The 'factory' heads have a "fly-cut" relief machined around the chamber intake valve area to unshroud the valve. 2. 5 valves) and 350hp (2. There are a lot of castings to choose from when running the Chevy Double Hump heads. 400" they flow as well as the -291 oval port SS heads but then I am currently running a set of 186 Camel Hump heads on my 383. I'm putting a new carb on the car, and in so doing changing plugs, fuel lines, filter, etc. Those heads are -291 camel humps, there are many that refer to them now days as double hump but they are camel hump heads . Free shipping. They were signature marked with 2 humps on the end of the head. 341 lobe lift x 1. The 300 HP 327s also Camel Humps, its an awesome heads. 70 beater. These heads are easily identified by the last three digits of the casting number: 461, 462, 186, 291 and 492. Save Share Reply Quote Like. 02 so the chamber was designed to be relieved around Camel hump heads are pretty universally 64 cc from the factory. Always been a Delco man and want to get rid of these bosch plugs. 02 heads that are still on my small block. 60 valves and the chambers were relieved on the intake side from the factory to unshroud the Gents, I'm just a hobbyist and this is my 2nd thread here and 2nd attempt at head porting. These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, & 492. But they were a cleaner casting and with less junk in the water jackets. found a # 3782461 on the heads. heads are assembled. Flat top 4-eyebrow pistons, HFT cam measured 252/262, 202/214 109 ICL and 114 LSA. Find many great new & used options and get the best deals for 291 Chevy Small Block Double Hump Camelback Fueler CYL Heads 1. hrd-performance (1,294) 100%. Looks like they are making then in the late camel hump1968 style similar to the small block head with The double hump heads were factory installed on all High Performance Fuel Injected and carbureted Chevrolet vehicles including Corvette, Camaro RS SS & Z-28, Chevelle Malibu, Chevy II Nova, Bel Air, & Impala. 50 valves, that were on my 68 Camaro when I purchased it. 6 heads were on the '64 365/ 375 hp 327. $350. One was an excellent head porter that many an hour on the flow bench with the 461X heads. Thats what is made for anyways. Dearing, Kansas · Within 621 mi. The 492, 292, and 186 heads have a slightly different looking camel hump. In this video we discuss what is the best casting to start with for you Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. 3% positive; Seller's other items Seller's other items; Camel humps (or fuelie heads, or double humps) are called that because they have a double-hump-shaped casting mark. What are the differences between the 291, 461 and 462 Castings? Which set of heads will work best? I was thinking of using a Comp Cams Magnum 270 Cam and Lifter Set. 291, 186, 041. The "291" heads continued to be used into 291 the 291 heads are 68 only as they have no accessory holes and a hold for the temp sender. They seemed to work just fine. A set of 283 power pack heads,64cc,millions out there,will work great and should give you 9:1 or a little better with the thick gaskets in use today. Von Rigg Fink. 94 intake and 1. They were used on both the 327 and the 350. Its been a while since I worked on small block Chevy engines. Mortec says the first is 69/70 302/350 64cc and the other is 64-66 327 with 62cc Well again, I`m not saying it`s ok or correct. 6" valves installed, exhaust runners ported smooth then polished. Well with a set of 291 Camel Hump heads, no intake runner porting, no chamber porting, bowl ported, 2. Will the camelhump heads fit on a 307? Not much of an engine buff yet, but it seems like I might run into problems with the smaller bore on my 307 (3. This particular head is set up for 1. 50s that have been hogged out to 2. Categories. The Chevrolet By The Numbers book, discloses that these heads could have either 1. OEM GM 3917291 Cylinder Head Small Block Chevy Camel Hump June 67 No Porting 291 | eBay Set of 291 camel hump hi perf. I'm gonna shift her at 8,000 rpm AND above just Find many great new & used options and get the best deals for Chevrolet 2. 1970 Chevelle, 331cid. Cylinder Head ID. I am not looking for big power numbers just something different. 1402 posts · Joined 2014 Add to quote; Only show this user #12 Last time run these on my 68 291 humps, Autolite 85s come to mind . 6" valves installed so bowls were ported, intake runners as cast, exhaust runners ported smooth then polished with no re-shaping, no chamber work, cut for 1. I wouldn't run the heads, I just want the 327 so I don't have to rebuild one of my own. They had that awful 'quench area' below the spark plug like a #462 or 291 head and they were thin if you Engine is unknown internals but 68 camel hump heads on it. 60cc CNC-profiled combustion chambers combined with a state of Chevy Small Block Cylinder Head Identification Guide Borrowed from CAR CRAFT Magazine. 875 inch?) vs the larger 4. $895. high performance small block engines, These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, & 492. Basically the only difference between my heads the 291 has a hole drilled and tapped on the boss for the temp sender. Elevate your Chevy's performance with our complete valve job and meticulous attention to detail. Changing cylinder heads on their own will do nothing without changes in the cam, intake and exhaustand even if you're changing 64cc combustion chambers, 1. Other than the surface rust they are in great condition. I located tens of pairs of these old camel hump heads just by accident from a wrecking yard, and I was wery eager to return there again and measure them to find a superior head for few dollars. You need to get the last 3 numbers from the casting numbers and look them up. Features like fast-burn combustion chambers, high-velocity ports, large diameter valve springs, and Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! Joe and Wyatt discuss the features that bring the vaunted camel hump heads into the Hi all. Thanks. 02 intake valves, and a 400ci 511 block that is allegedly 0. Valves. 327 got 291 camel hump heads, factory 2. 6 stainless valves pc seals comp springs/ retainers/ locks bronze valve guides screw in studs Hey MasterBlaster,,,As you probably know,,, there are camel hump heads and then there are Camel Hump heads. These heads will fit 265, 283, 302, 305, 307, 327, 350, & 400 small block Chevy engines from 1955 to - GM 291 Camel Hump Heads, 2. $299. for the update. item 8 327 SBC Camel Hump Head 461 327 SBC Camel Hump Head 461. For instance, the camel hump symbol (also called double hump) can be found on 461, 461X, 462, and 291 casting heads. The cylinder heads on top of that engine were the now-famous double-hump heads. Or I could run vortec heads with edelbrock performer EPS #2716. 60 Valves. The XLS extended reach plugs were not the right plugs for these heads. 500" lift Intake and 202 CFM Exhaust With a 3. 50” exhaust, casting no. or Best Offer +$94. 60 valve versions available; 291 on 327’s thr ‘68; 291 Fred, thank you for all the helpful information! I just picked up a motor with a set of "291" heads. Joined: Jun 11, 2007 Posts: 13,404. 23 watchers. but yes l found a set for $200 talked him down to $130 so l got a whole engine with heads and spair pair of heads the motor is the 291 and the spairs are 194's . boys were just getting started and had to use a production head. I have double hump heads 291 casting. 6in exhaust valves. $500. these were taken from a 1968 camaro z28 with 302 sbc according to the previous owner. 02"/1. 5 exhaust. We've got seven camel hump heads . 94 or 2. These heads will fit all 265, 283, 302, 305, 307, 327, 350, & 400 small block Chevy engines from 1955 to Hi guys i hope you can help me i just want to know which set of chevy camel hump heads flow better the 461 or 462 im bearly going to start to rebuild my engine i still need alot of parts to finish my project but i want to Iron heads with a modern high-swirl combustion chamber (like GM Vortecs or Dart Iron Eagles) will be more high compression-friendly than 40 year old OE heads, and aluminum heads will be even better. 10065202. Years. At least for the local fast 283 guys around here that was the norn usually with over the counter Chevrolet parts. Which is better accessory hole double hump heads like the '461, 462 and '291 or the later heads with accessory holes like the '186 and '492 heads? - GM 291 Camel Hump Heads, 2. Those heads were ONLY on the 61 FI engine (thus the origin of the term "Fuelie heads") and they had 1. Good small valve heads would be the about 137 to 140 cc intake port 220hp/283 and I think 250hp/327 Power Pack heads that have a big triangle on the top of the flat rect. 60-inch valve sizes. unmilled generally runs out around 67-68 CC chamber size as it has a relief above the spark plug like the 291 and 462 castings do. The camel humps flowed 253 CFM @ . this info is from memory. These are garage sale priced because they are blemished heads from the factory. 500. News that Trick Flow will re-engineer the classic small-block Chevy “double-hump” or “camel-back” cylinder heads in cast aluminum is reviving interest in the original Gen I platform, Other popular double-hump castings include the 291 (3917291), 292 (3917292), 186 (3927186), 187 (2927187), 414 (3973414) and 492 (3991492). the 2006 HAMB DRAGS raffle engine heads 291 casting 2. 64cc combustion chambers. 060" and I am running flat-top pistons with a dome. does better on pump gas than the flat top 350 with 68 date coded 291 Camel humps it replaced. Of course the factory Vortec heads need a Vortec bolt pattern intake. 00 mind you I'm currently building a 305/nv3500 powered 1984 Ford Ranger, just a weekend toy, probably never going to see the strip but once or twice when i get a wild hair. to un shrouding) will support 450+ and maxed out welding by These flow #'s were just something I found off the 'net, I don!t know how valid the data is. I. CID. Yes they are available. So, it appears that I could have the larger valves installed in these heads because the casting is exactly The 291 heads are almost identical to the 462 heads. This will be in a 4000lb off road truck A 291/462 fuelie flows generally in the high 190s stock round . 550 lift with big inch sbc Also if you run much more than 350-360 ci your really limiting the power potential, on 283-327 they run awesome and if are in good shape can be freshened up reasonable priced. See listings near me. I have a set of 'Ol Camel Humpers' on a 406 drag engine They were original 1. Vehicles. According to my information, 461X was the best of all the camel hump heads but are very rare. I mean offcourse a racing head, with that wallet shredding price too has to be excellent. Other Chevy cylinder head castings would do in a pinch, but the double hump, sometimes called camel hump, castings were the holy grail of Chevy small block cylinder heads desired by most people. 94” intake, 1. 50 exhaust which is a basic 4BBL head. 00 The "true" camel hump heads (through 1968) were used on 302's, 327's and 350's, commonly known as "461", "462" and "291" depending on year, some carried over also. $39. Double-Hump heads for the small-block are favorites among enthusiasts. Create new listing. Deuces, 31hotrodguy and Holmes Cycles like this. $375. Would get that load rolling nicely. Some of the small brackets that mount to the headers are weak and do break if you have a fairly hot cam. delcoenginesandcomponents (237) 93. I'm trying to stick with the vintage look and theme for my car. CHEVY 64 Discussion starter. 76cc. The transmission Any figures available for the intake/exhaust runner flow on older 186 "Double Hump" heads? I searched for this info w/no luck. I don't know what the static compression is, but I get 245 PSI cranking pressure on a compression gauge. Im thinking around 282-286 degrees of advertised duration and around 470-500 lift, if i can go more duration i will. Key: Cast Marks: Cast Nos. All for $0. 60 valves) through 1968. was gonna run the L79 cam. Thanks Bort62 , I get what your saying about the 3/4cam and double Humps. the big valve camaro/vette heads bring about 450 I believe the number is a 291 head casting number but cost differs from state to state, lol hope that helps I think The key to running 2. Matt,A few thoughts on heads,the stock 283 64cc heads on a 283 were listed as 9. 00. 50 valves will add 30-40 horsepower and 20-30 ft pounds of torque just as they come out of the box compared to camel humps with big valves. Chevy SBC Assembled Aluminum Camel Double Hump 461 Cylinder Head (speedwaymotors. It had AC Delco R43S gapped at 35 degrees. Virtually all camel hump heads came w/o accessory holes. 6 stainless valves pc seals comp springs/ retainers/ locks bronze valve guides screw in studs item 2 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. from Garage. 6 rocker, 108 lsa in 104. GM 3917291 Cylinder Head Small Block Chevy Camel Hump 291 F-18-7 1967. Listed in Seymour, TN  Matching pair of double hump SBC heads. 461 and 462 camel humps are good heads for the time. I'm sorry to ask a dumb question- I dont see the camel hump Heads on the flow tech web site, I know Trick Flow & Speedway offer their own versions of the Flow characteristics, on double hump heads are very limited, even with drastic porting they wont flow much past . The "fuelie" moniker came from the fact that the first engine to get them was the 315hp 283 F. 1968 heads were also produced using casting number 3917291, but 1968 heads included a provision for a water temperature sensor not included on 1967 heads. 1967 Chevy Small Block 291 camel hump heads recommend rebuild. I turned the heads over to a Stock/Super stock racer for some work. They have late 67 casting dates and yes they have the temp sender hole. 50 or 2. com) I had to wait almost three months last year to get my factory heads done, and it was not cheap. The block has'nt been decked, and the camel humps have 68 cc chambers if i dont decide to use aftermarket heads. They do not have the accessory bolt holes as the "186" style castings. If I'm not mistaken, they would lower your compression ratio, though. What some people call Camel Hump heads are not SOMETIMES really Camel Humps but cylinder heads that have some of the radius hump shape in the cast identifier on the end flat of the head(s). Good smaller engine heads by me! pdq67 I have acquired a freshly rebuilt set of 291 double hump heads with what seems like 2. 94" intake and 1. Save Share I have a set of camel hump heads with under cover porting from brezezinski and would have to run edelbrock torker ll intake #5001. Late 1967 L30, L48, and Z28 engines received 3917291 heads (with the appropriate valve sizes) and used the same casting symbol. 67 Camaro 4-spd, 350 with cam, headers, HEI, and double hump heads. 02s(attn. Could someone give me an Idea what a complete head with valves would be worth . 6" valves installed, bowls ported to proper sizing with larger valves, exhaust runners ported smooth so they could be polished, no intake runner work, no chamber work other than blending out from the valve job around . The 291 heads were used from 1967 to 1968 on 302, 327 and 350 c. His '63 engine would have had the 1. I have This video shows you how to identify camel hump heads. I have never seen another 462 (commonly used up to 67) with a boss for a Made from premium grade, lightweight A356-T61 aluminum, DHC 175 heads feature the exterior styling and straight spark plug holes that deliver the nostalgic appearance of the original factory performance 186, 291, 461, 462 "double hump" or "camel back" castings that customers want. Comments. Find cast numbers. 1968 smallblocks had the short water pump and the alt. 5 The percent of change in flow is more than enough to support changing to the larger valves. Significant improvement in the flow. all flow about the same. The double hump heads pre 69 didn't have the bosses cast on the heads. Can anyone suggest which plugs to run in my 350 with camel back heads. Date code of D 10 7 and D 10 7. The first version of the double hump heads was the 461, which was introduced in 1961 on the C3 Tech/Performance - Camel hump heads to vortec heads? - So currently I'm running a set of 291 camel hump heads with 1. Trick Flow has revived those nostalgic memories in a much-improved aluminum casting. I have a set of 1965- 3782461 Camel Hump Heads with 1. 94 what kind of performance difference would I see if I bought them and put 2. camel humps I have a set of 1967 camel humps/no acessories holes, on my Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump Sbc Heads 291 D 10 7. But I do not want to do anything to the carb myself. 99. 3. Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Cylinder Heads 291 SB heads Jump to Latest 2K views 10 replies 4 participants last post by sschevellefan Sep 22, 2007 As soon as I went with Autolite 353 which are 13/16 head and this carburetor, I've been having this problem. Based on the iconic “double-hump” or “camel-back” The 68 double hump heads were the 291 castings and they did not have accessory holes. 1969 1970 Oem Bbc Big Block Chevy 396 427 454 Rectangle Port Heads 3964291 291. 940 and 1. The entire casting number is 39171291. 60 valves were an option, but were not produced in large numbers, using the same casting. I have 1. The Camel Backs are often confused with the "fuelie" heads found on fuel-injected Corvettes, but measurements of the intake and exhaust ports will reveal the Camel Backs are installed in the carbureted 302, 327 and 350 engines. Sponsored. Location. The X is cast on the bottom side under the water so i got a fresh 327 with flat top pistons and 462 camel hump heads all good, just need a cam. My opinion is the 291 is one of the better camel/double hump heads out there . 040 over already. 00 item 4 1967 1968 GM Chevrolet SBC Cylinder Head Camel Hump 3917291 Date K17 1967 1968 GM Chevrolet SBC Cylinder Head Camel Hump 3917291 Date K17. one last thing they will support370-400 horse power even in 1. 5:1. Comments welcome. Just as well I as I had Delta Camshaft grind this little HR jewel up Find many great new & used options and get the best deals for SMALL BLOCK CHEVY 291 CAMEL HUMP HEADS at the best online prices at eBay! Free shipping for many products! These are commonly called "Camel Hump" heads :yes: This refers to the two 'humps' on the front pad of the head These came in both 1. 10065203 item 7 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. 291, 186 style quench chamber. 94/1. 20 valve 461 double humps because they are traditional and flow well, I am not sure the specs on the 30 The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. 02 with Z-28 Springs, Manley valves, guide plates and a 'heavy' street port job. Best Selling in Cylinder Heads. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2. Unported no damage. Ported with a 2. Parts Only. However the 462 also had a boss in the casting but not tapped. 64 cc. These heads will Fixing up camel humps or buying newer aluminum heads or maybe going to a vortec head. delcoenginesandcomponents (231) 100%. 94 intakes and 1. 60 intake and exhaust valve sizes. $265. The camel hump heads were reserved for the higher performance Small Block Chevy engines. There are no breaks, modifications, or repairs to this head. Back to your original question, most people call the "camel hump" heads fuelies but as stated before, only the 461 were true fuelies. SBC camel hump heads. They were on my '64SS 327/4sp. 485 206. $400 · In stock. Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! Also known as "fuelie" heads, the 3782461 castings were used on many legendary Chevrolets from 1961-1967. Member. Heads. Jump to Latest I wanted to sell the heads sperate . Trust in our commitment to quality and performance. Shim heads gaskets by FelPro. 353/. (unless CA. Late in the 1967 model year, a boss for the temperature sending unit was added. The block number is 3892657, and I don't have the head numbers yet. I hope this helps. The 327 is getting 30 over flattop hypers. Save Share pdq67 Back when the C Econo. Stock “double hump” heads flow 202 cfm intake and 141 cfm on the exhaust. Casting Number. 5 valves and also as mentioned, they were the 461 (and 461X) castings. Today, these engine-breathing regulators are usually referred to as “Fuelie” heads, because they were released on Corvettes with Rochester’s fuel injection. acr. Camel Hump heads are just a speed bump in the history of small block performance. They were primarily used on 60's to early 70's "performance" factory engines. no accesory holes. 82-86. The car will be street driven and will have a Vintage Which 291 heads do you have? The later versions had 76cc chambers, which you wouldn't want on a 327. You can get the 186 castings, they are 64 cc heads with accessory holes used on 69 302 and 70 350 LT-1 engines. Yes they are available · This listing is far from your current location. The first 2. was mounted on the driver's side. See my post below from another thread, there are videos, time slips, photos and build details I used to run 89 octane with the camel hump heads, but I can now run 87 octane with the AFR heads. 440" to . End result is better on a small engine than a Camel Hump head. 02 & E-1. 02 camel hump heads back in the late 60's and cracked both pairs. 94 64cc Reman at the best online prices at eBay! item 2 1968 Chevrolet “Camel Hump” Cylinder Heads #3917291 1968 Chevrolet “Camel Hump” Cylinder Heads #3917291. Property Rentals. Info is limited on these particular heads in this printout so they prolly have the regular chambers and small runners. My mistake they do have washer's. There were some slight chamber shape differences in the 63-66/67,68 castings but as an example the 327/350 hp engines through their four year run were basically the same. Alfred, as has been noted by the other posters, the 300 HP and higher rated 327 engines came with heads having the camel hump marking (casting numbers ending with 461, 461X, 462 and 291). View Details. There are several closed chambered heads with different casting numbers and markings that will perform as well and a original fuelie head. Ready to bolt on. SHARE POST #5. My first build was a small journal 327 with a small solid roller and the best set of 291 camel hump heads I could piece together. That's when i went with the 292 turbo 2. Typical Camel humps only flow 195 CFM. Order now and experience increased power and 3917291 casting camel hump small block chevy heads. 1967 Chevy Camel Hump Heads 291’s - Car Engines & Engine Parts - Commack, New York | Facebook Marketplace Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. 50 inch exhaust valves which were used on 350/300HP engines. 94 valve sizes, proper porting with 2. 00 shipping. Camel back, double hump,fuelie heads, are all names for 461,462 & 291 head castings, and I think they WILL work on a 305. Supposedly you are not supposed to use 5/8 socket spark plugs with the old camel hump heads before 1970 but I didn't know at the time. They came in both a big valve and a small valve. 94 64cc Reman at the best online prices at eBay! Free Check out these Chevrolet double-hump cylinder heads and you'll find out why most are the same but NOT equal! Check out the details, modifications, and tests we run on various types of Find many great new & used options and get the best deals for SMALL BLOCK CHEVY 291 CAMEL HUMP HEADS at the best online prices at eBay! Free shipping for many products! with the introduction of the vortec heads, the camel hump is becoming a once again popular choice for a hot little small block mill, and in my opinion is the head of choice for a The 291 heads were used on Corvettes from late '67 (around February-March on, replacing 462's) for 300hp (1. Or on this hand have the 291's cleaned/decked, punched for larger valves, I already have As Doug pointed out there are 3 different casting numbers that have the double hump outside identification. 3917291, date coded A 2 8 (Jan 2, 1968). They are supposed to be for an untouched 461 head with 1. 02" intake valve size. 02 valve still I own a pair of NOS "291" heads you mentioned, the GM box was printed "initial 68 stock". And the nick name Camel Hump was born. 98 posts · Joined 2009 Add to quote; Only show this user #1 · Mar 30, 2013. chevy heads 291 camel hump. Use these casting numbers to identify the heads you have. And yes, by the time you spend money on the old heads making them "modern", you can buy a set of W/P's or aluminum, Canfields bare and have something better to start with. $700. 1977 I made a bracket to mount a alternator on chevy heads without threaded accessory holes using late 70's brackets , pulleys and long water pump. 60 valves installed. The X on the 461X heads CAN NOT be seen from the top side of the head. 492 angle plug heads, performer intake with 600 Edelbrock carb, adj vacuum advance DUI HEI and 1 5/8' long tube headers to true-dual In 1962, the 327ci engine in the Corvette was the first small block to offer a 4-inch bore. 350. or Best Offer +$150. These heads may have come with 1. 02 valves and screw in studs and a So would camel hump heads or LT1 heads be any of a performance gain over the stock heads? It's still an air pump that can only use so much air. They were used on Aluminum BB heads, not the cast iron. Early ones, in fact most, didn't have screw in studs and guide plates, and most had 1. 700R4 TPI transmission A lot of what you can do is going to depend on stuff like piston design and such. Corvette mill in 1960. Small Block Casting numbers . 7. Bort62, Mar 20, 2008. Chris . Intake/exhaust port volumes were about 170cc and 64cc and valve I've got 291 heads and I'm debating if it's worth my while to have a head job done on them vs. But I agree for the money you can get a nice set of vortecs or a good set of alums. Had a local vet Stock/Super Stock racer work them a bit for extra flow. This combustion chamber design was used in all of the double hump heads including the 291, 462, 186, 041 and 492. 8%. I have seen engines with 291 on 1 side and 041 on the 461X heads have a 10cc larger intake port. . The confusion arises from the fact that the 3890462 casting was also produced using smaller 1. item 1 OEM GM 3917291 Cylinder Head Small Block Chevy Camel Hump June 67 No Porting 291 OEM GM 3917291 Cylinder Head Small Block Chevy Camel Hump June 67 No Porting 291. You'd have to spice it up a lot (not a bit) to outbreathe a stock head. smaller combustion chamber, smaller original valve bowl allows nice porting to match the How to reliably mount the alternator on a small block Chevy without threaded holes in the cylinder head. pad on the ends. Flows about 165 untouched! Don't forget about the -291's. The "462" heads have the double hump or "camel hump" casting symbol on the end of the head. The accessory holes came out in 1969 with the 186 heads. I'm thinking about using a set of 461 "camel hump" heads on the 327 for my son's '67 Camaro, and I'm going to be installing a Vintage Air setup, but the 461 heads don't have any of the accessory bolt holes, so how Nobody except resto guys are really using them anymore because a machine shop bill to properly re-do and update a set of camel hump heads is close to what a set of aftermarket heads cost. they appear to have been ported and polished by the I have a set of 291's for my pick-up. According to an old MorTec print out I have, those heads came on a 66-67 327 w/ no accessory holes. A Camel Hump head is a -461 or -462 casting number and were made in the early 60's. you should always use matched heads. And just a side note, double-hump heads never came w/ small valves in them. 60, hardened seats, pocket ported, and port matched by Flow Technology some 16+ years ago ($150 back then) and the other day the car did 293 hp and 293 ft-lb at the wheels on the dyno. Custom cam from mike jones 292/296 231/234 . item 7 OEM GM 3917291 Cylinder Head Small Block Chevy Camel Hump June 67 No Porting 291 OEM GM 3917291 Cylinder Head Small Block Chevy Camel Hump June 67 No Porting 291. 460" springs (Stepped spring pockets) with 160/400+ spring pressure's Double-Hump heads for the small-block are favorites among enthusiasts. 50 valves. iron heads Making the Double Hump heads run 7,000 rpm for 3,000 laps I had two sets of the 2. 6 valves, screw in studs and guide plates, pressure tested and magged. 02in intake valves and 1. Powerband was far more narrow, as it killed the low-end, and just when it started to "come on" the stock 291 heads and factory exhaust system stopped the party at ~5000-5500 rpm. Pnut style plugs no washers i believe. 50. 50" exhaust valves, although this head was never used on the 302. Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. They have been angle milled . Jonathan . A few of the early '60 fuelie This is a well flowing head/ It is a hidden camel hump. The torker Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. Save Share . SBC 291 Casting Double Hump Cylinder Heads Appear VIRGIN NHRA Super Stock. Your account. Apparel The 461, 462, and 291 casting numbered heads are commonly referred to as "camel hump", "double hump", or "fuelie" heads, and have either 1. Pre-Owned. Can't seem to find the answer to this in the archives. 02/ 1. Jump to Latest 78K views 36 replies 12 participants last post by KyleG Apr 1, 2013. 94" and 2. Browse all. Chevy 3917291 Heads 302 327 350 Double Camel Hump SBC Heads 291 small block. 480 cam. 5-inch valves or they might have been made with 2. The casting numbers would be 461, 461x, 462, 291, 186 and 492 heads, I believe. Set of 291 camel hump hi perf. They did have 2. 50) With thinking about going up to (I-2. Any ideas or solutions are welcomed. 60. I sourced some 291 67/68 Camel hump heads 2. 1. 050" to . Click to expand C1 & C2 Corvettes - 291 Heads - What is the difference between at 461 and a 291 head / I know they are difference years but are the chambers bigger in one ? They are both called fueley heads Is one better than the other?The guy that has them said the temperature sender is in the pass side head Maybe that help tell item 1 GM 3782461 Cylinder Heads Small Block Chevy Camel Hump March 65 2. 02/1. or Best Offer. No Warranty, No Returns on Garage Sale Items Visually similar to the 461 heads (GM # 3782461) which first appeared on the 1961 Corvette “fuelie” No accessory bolt holes, just like the original heads Heads are sold EACH Aluminum heads shave 40 lbs. ThunderRocket, Jun 6, 2006. smog motors had some) They can be drilled but, some shimming will be required to get the mounting surface level. 060 over 300 horse 350 with a L-79 Cam and 291 Camel humps with screw in studs and guideplates. You will get all kinds of advice here to go with superior late model double throw-down super duper hetrodyne heads but for my money, SBCs need camel humps to be performance. The block looks to be older and small journal with a . $295. 02, 1. GM 3917291 Cylinder Heads Small Block Chevy Camel Hump Dated B 29 8. 32 watchers. com) The double hump heads, even the good ones, were good for a No, not all head castings had bosses. I had a couple of friends that were real serious about it. 2. We have a good supply of used ‘186 & ‘492 heads available with everything from “Undercover Porting” to CNC Sportsman Porting. Matching heads reseated to run pump I have a similar set up in my '55 chevy and 4spd, 355ci , roller rockers, aluminum factory mid rise Vette intake, 2. Our all-new cylinder head casting is a modern take with all the old-school looks you desire out of a reproduction camel hump head. 68 SS 454 / 4speed Getting there. It was a I've got 291 heads and I'm debating if it's worth my while to have a head job done on them vs. Here is a quick 'cheater' list of common head CC and valve size(s): These days modern chambers that start with the 1996 L31 Vortec truck engines this head in stock iron form with 1. Opens in a new window or tab. 94 valves I have a friend who offered me some 062 vortec heads for $250 with 1. yixiio apnfil nrdp knno rszz icgqh dnh yzcg nfamltp obwvbsz