291 camel hump heads. Have a set of 291 camel hump heads.

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• 291 camel hump heads 60). Matching heads reseated to run pump fuel. 42 anti-spin. Sponsored. Ported with a 2. off the nose of your car vs. 5:1. heads are assembled. Late 1967 L30, L48, and Z28 engines received 3917291 heads (with the appropriate valve sizes) and used the same casting symbol. 60s. They were used on both the 327 and the 350. 6-inch valves. The 461 head had no chamber below the spark plug, it was machined flat when the head was made. In this video we discuss what is the best casting to start with for you With pocket porting and port matching, they're still a damn good head. Of course, camel humps have been popular heads since they were new. The double hump heads pre 69 didn't have the bosses cast on the heads. Today, these engine-breathing regulators are usually referred to as “Fuelie” heads, because they were released on Corvettes with Rochester’s fuel injection. The 68 double hump heads were the 291 castings and they did not have accessory holes. Vehicles. from what i can find out, these were also the same number as 327s and 350s. 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. 1970 Chevelle, 331cid. Date code of D 10 7 and D 10 7. As 52 F-3's ID list shows; the 69's Camel Hump: The term ‘camel hump’ comes from the raised portion at the top of the head. But they were a cleaner casting and with less junk in the water jackets. 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. 060", heads step cut for 1. I bought a '65 K10 with 8k "rebuilt" 357 SBC. Can't seem to find the answer to this in the archives. SHARE POST #5. 94 & E-1. SHARE POST #7. Basically identical to the 462. 02 camel hump heads back in the late 60's and cracked both pairs. 400 to . I sourced some 291 67/68 Camel hump heads 2. 02 1. Pnut style plugs no washers i believe. 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! Flow characteristics, on double hump heads are very limited, even with drastic porting they wont flow much past . Well again, I`m not saying it`s ok or correct. have umbrella style valve stem seals. The 291 heads are later 60's and generally are high performance. Original Double Hump Chevy Sbc Head . For instance, the camel hump symbol (also called double hump) can be found on 461, 461X, 462, and 291 casting heads. 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. They were used on Aluminum BB heads, not the cast iron. Skip Content. Based on the iconic “double-hump” or “camel-back” Other popular castings include the 291 (3917291), 292 (3917292), 186 (3927186), 187 (2927187), 414 (3973414) and These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, 370, & 492. (unless CA. Find cast numbers. Late in the 1967 model year, The "291" heads continued to be used into the 1968 model year on the L30, Large “camel humps” 291, 461, 461X, 462 Original hi-perf or “fuelie” heads; chamber sizes are 62-64cc; both 1. 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. I see you've got new heads ( Flow Tech Camel Humps). CHEVY 64 Discussion starter. 76cc. These were ORIGINALLY referred to as "Fuelie" heads, and that is where the term originated. 194 valves non accessory holes $150 obo 309. 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 461 and 462 camel humps are good heads for the time. Yes they are available. The 'factory' heads have a "fly-cut" relief machined around the chamber intake valve area to unshroud the valve. Free shipping. His '63 engine would have had the 1. 400" they flow as well as the -291 oval port SS heads but then the older oval port SS heads flow better from . Good smaller engine heads by me! pdq67 We've got seven camel hump heads . What do you think of these heads that will give a somewhat factory appearance? 291 posts · pdq67 Back when the C Econo. Pretty easy. one last thing they will support370-400 horse power even in 1. Making the Double Hump heads run 7,000 rpm for 3,000 laps - GM 291 Camel Hump Heads, 2. 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. Ready to bolt on. 291, 186, 041. Or on this hand have the 291's cleaned/decked, punched for larger valves, I already have screw-in studs and guide plates on them, I'm going to have some work done on old 461 Double Hump Heads that currently sit stock with a (I-1. so i got a fresh 327 with flat top pistons and 462 camel hump heads all good, just need a cam. An Authentic Aluminum Reproduction of Chevy’s Camel Hump “Fuelie” Heads. $299. 60cc CNC-profiled combustion chambers combined with a state of the art valve job and CNC Camel humps are so old they will have issues if you find a decent set. Thanks. 60 OEM GM 3782461 Cylinder Heads Small Block Chevy Camel Hump 1965-66 2. Significant improvement in the flow. Member. $895. Opens in a new window or tab. 2 to 1 and then through a DCR program and found The key to running 2. $500. 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 were A/C car compressor brackets mounted? Were they done with brackets mounted to the water pump fasteners? The 291 castings were mainly produced in 68, although a few may have been used in 67/69. 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. BANNED. Camel Hump heads are just a speed bump in the history of small block performance. I used to run 89 octane with the camel hump heads, but I can now run 87 octane with the AFR heads. KENTON. SBC camel hump heads. The torker GM Chevrolet 302 327 350 461 Camel Hump SBC Cylinder Heads PAIR 3917291 Camelbac. The "good" late 60's castings have been well known by hot rodders for years and most of these heads are all used up (meaning they've been used, abused, and reused) - especially back in the 70 and 80's when good Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. My question is two fold: 1) Would it be better to go to something like (I-1. Just as well I as I had Delta Camshaft grind this little HR jewel up These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, & 492. $498. 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. 440" to . Cylinder Head ID. Dearing, Kansas · Within 621 mi. It went in DEEP! 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 . Features like fast-burn combustion chambers, high-velocity ports, large diameter valve springs, and Big Block 291 heads used in 70 were originally equipped with R43T spark plugs. threewindaguy. Or I could run vortec heads with edelbrock performer EPS #2716. $700. 50) With thinking about going up to (I-2. OK, I'm confused. The XLS extended reach plugs were not the right plugs for these heads. '67 291's had the boss for the temp sender, but it wasn't drilled or tapped until 1968. 82-86. 1949-53 8ba 291 Ford Flathead Mercury 24 Stud Finned Heads Complete Rebuild. 94 64cc Reman at the best online prices at eBay! Free shipping for many products! Even older is the troglodyte-like 64-cc chamber heads, often referred to as “double hump” or “camel hump” heads because of their distinctive casting marks on the ends of the heads. 98 posts · Joined 2009 Add to quote; Only show this user #1 · Mar 30, 2013. Valves. Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump Sbc Heads 291 D 10 7. 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 manifold (except 1992 & up LT-1 reverse 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. 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. Only the TRUE "FUELIE" heads and 327"-350HP of the same casting #'s had 2. 50s that have been hogged out to 2. And just a side note, double-hump heads never came w/ small valves in them. These smaller chamber heads had better flowing Get the best deals for Chevy 291 Heads at eBay. The Camel Backs are often confused with the "fuelie 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. The standard 64 and later 461 and all the subsequent hipo heads( 462, 291, 040, 041, 186, The camel hump heads never came on any 283's, they were 327 and up. 5 valves) and 350hp (2. OEM Original Small Block Chevy Cylinder Heads 327 350 Truck C10 C20. 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 C1 & C2 Corvettes - Double hump 291 and 461 heads - I have a set of 291 heads that I was running on my 1974 355 engine. 800 These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, & 492. the 2006 HAMB DRAGS raffle engine heads 291 casting 2. See listings near me. Hump Head 3917291 291 1968 Small Block Chevy SBC Z28 302 327 2. 60. 94 inches for intake and 1. They are still out there. 60-inch valve sizes. Weigh your cost out. Yes they are available · This listing is far from your current location. The accessory holes came out in 1969 with the 186 heads. I am told these are camel hump heads. 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. There are several closed chambered heads with different casting numbers and markings These days modern chambers that start with the 1996 L31 Vortec truck engines this head in stock iron form with 1. 00 +$75. 02/1. Flat top 4-eyebrow pistons, HFT cam measured 252/262, 202/214 109 ICL and 114 LSA. I have enough issues with cracks in my old 6 heads, for which there are no alternatives, so I do not need any of that nonsense with small block heads. vortecpro Guru Posts: 1846 Joined: Sat Apr 25, 2009 3:10 am A 291/462 fuelie flows generally in the high 190s stock round . Sent from AutoGuide. Of course, things depend on what your trying to do. The roller cam and AFRs went 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. to un shrouding) will support 450+ and maxed out welding by a few elite porting gurus have gotten 600+ out of these suckers and if you think i am wrong check out some of the NHRA records that still stand today with these heads Looks like they are making then in the late camel hump I own a pair of NOS "291" heads you mentioned, the GM box was printed "initial 68 stock". The 492, 292, and 186 heads have a slightly different looking camel hump. 050", exhaust runners ported smooth then polished - 1. Camel hump heads vs vortec heads. Right side of 1st head is stamped #L23 w/13 stamped below it. And the nick name Camel Hump was born. same size chamber and ports would bother my one bit but any differences in sizes in not acceptable to mix n match. I have replaced them with a set of AFR aluminum heads and now have the 291's off for a re-build. Shim heads gaskets by FelPro. They are supposed to be for an untouched 461 head with 1. Hump Head 3917291 291. com. Property Rentals. These heads are easily identified by the last three digits of the casting number: 461, 462, 186, 291 and 492. 1968 smallblocks had the short water pump and the alt. 500 lift. all flow about the same. Chris . That's when i went with the 292 turbo 2. WHAT PLUG AND WHAT GAP WOULD YOU RUN THIS 350/295 THANKS Team Camaro 68 SS matching 4 speed . 10065202. Virtually all camel hump heads came w/o accessory holes. 77 at Famoso. Any ideas or solutions are welcomed. 02 heads that are still on my small block. hrd-performance (1,294) 100%. 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. 060" and I am running flat-top pistons with a dome. 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). 50. I had a couple of friends that were real serious about it. how do i find out for sure, short of pulling them apart? there was a plate under the casting number, looks I have a set of camel hump heads with under cover porting from brezezinski and would have to run edelbrock torker ll intake #5001. chevy heads 291 camel hump. 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! 291 SB heads Jump to Latest 2K views 10 replies 4 participants last post by sschevellefan Sep 22, 2007 Can anyone suggest which plugs to run in my 350 with camel back heads. item 2 Aluminum GM 3782461 Chevy 327 SBC Camel Back / Double Hump Cylinder Head Bare Aluminum GM 3782461 Chevy 327 SBC Camel Back / Double Hump Cylinder Head Bare. The easiest way to reference any production head is with the last three digits of its casting number. Do a web search on "Dynamic Compression Ratio" to determine what static CR will work best with your cam. If you building a period specific engine or restoration such as a 350hp/327 they do the trick. 6 valves, screw in studs and guide plates, pressure tested and magged. 50" exhaust valves, although this head was never used on the 302. Heads. Your account. Thank's again A few points to consider if your planning on using a pair of double hump GM heads. Click to expand Hi all. Small Block Casting numbers . 60 valve versions available; 291 on 327’s thr ‘68; 291 have temp sender hole; 462 don't How to reliably mount the alternator on a small block Chevy without threaded holes in the cylinder head. They were signature marked with 2 humps on the end of the head. item 3 1968 69 Small Block Chevy SBC Z 302 327 2. 460" springs, 170-175 seat/425 open The 327 is getting 30 over flattop hypers. One was an excellent head porter that many an hour on the flow bench with the 461X heads. 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. 46" Dual Springs at 160/420+ spring pressure with steel Camel back, double hump,fuelie heads, are all names for 461,462 & 291 head castings, and I think they WILL work on a 305. Like to see that with a camel hump head. Same head just one had the accesory holes. SBC 291 Casting Double Hump Cylinder Heads Appear VIRGIN NHRA Super Stock. These heads may have come with 1. 94" intake and 1. smog motors had some) They can be drilled but, some shimming will be required to get the mounting surface level. These heads will fit all 265, 283, 302, 305, 307, 327, 350, & 400 small block Chevy engines from 1955 to The VERY, VERY, VERY first heads with the double humps, as already mentioned, were introduced in 1961 on the 315hp/283 with Fuel Injection. I. from There used to be a member named William's (a guy local to Back to your original question, most people call the "camel hump" heads fuelies but as stated before, only the 461 were true fuelies. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2. Corvette mill in 1960. $265. 02s(attn. They did have 2. Some of the small brackets that mount to the headers are weak and do break if you have a fairly hot cam. 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. This raised section is noticeable and is generally around 1 to 1. Bort62. 060 over 300 horse 350 with a L-79 Cam and 291 Camel humps with screw in studs and guideplates. Save Share Set of 291 camel hump hi perf. com Free App . 1. Those heads were ONLY on the 61 FI engine (thus the origin of the term "Fuelie heads") and they had 1. item 7 OEM GM 3782461 Cylinder Heads Small Block Chevy Camel Hump 1965-66 2. Of course the factory Vortec heads need a Vortec bolt pattern intake. boys were just getting started and had to use a production head. 02, 1. The 461x heads though desirable for their bigger ports 68 291 Turbo Flows were Grumpy Jenkins favourite Head and if you have the Time, Patience and Money to build a set of 291 Jenkin Spec'd Heads they are worth a small fortune to those who want Originality and BEAT Find many great new & used options and get the best deals for 291 Chevy Small Block Double Hump Camelback Fueler CYL Heads 1. They used 14mm 3/8" reach gasketed spark plugs. My 56 has a set of 291 Camel Humps with studs and guideplates, 15 inch Torque Thrust and a freshly rebuilt 57 Olds 3. Elevate your Chevy's performance with our complete valve job and meticulous attention to detail. -----69 Camaro Z28 "clone" - 327 AT "461" camel back heads, edelbrock, hooker, ultradyne, TRW etc. this info is from memory. Categories. delcoenginesandcomponents (231) 100%. Create new listing. You can get the 186 castings, they are 64 cc heads with accessory holes used on 69 302 and 70 350 LT-1 engines. The first 2. 94 what kind of performance difference would I see if I bought them and put 2. Save Share Reply Quote Like. 96 & E-1. Chevy SBC Assembled Aluminum Camel Double Hump 461 Cylinder Head (speedwaymotors. Here is a quick 'cheater' list of common head CC and valve size(s): The 461, 462, and 291 casting numbered heads are commonly referred to as "camel hump", "double hump", or "fuelie" heads, and have either 1. 2. Some of the casting numbers you see the most are 461 (no bolt holes), 462, 492, 186, 041, 041X, 291 These flow #'s were just something I found off the 'net, I don!t know how valid the data is. 50 or 2. derosnopS. 8%. 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 There are a lot of castings to choose from when running the Chevy Double Hump heads. They have late 67 casting dates and yes they have the temp sender hole. I have a set of 'Ol Camel Humpers' on a 406 drag engine They were original 1. We look back on this iconic performance part. They do not The numbers on the heads are #3782461 w/the #64 stamped just above the 3 and 7. Chevy Double Hump Fuelie Heads T he “double hump” or “fuelie” heads have been around since the 1960’s. delcoenginesandcomponents (237) 93. 32 watchers. 350. Stock “double hump” heads flow 202 cfm intake and 141 cfm on the exhaust. 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. 0 inch bore on the 327 and 350 that these heads were designed for. I spent 2000 for a full comp port job, intake runner work, opened to 1205 fel pro, bowl work, chamber work, 2. But I do not want to do anything to the carb myself. 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. I Camel Hump Heads Long ago, and I mean long ago, I knew all this stuff by memory. 460" springs (Stepped spring pockets) with 160/400+ spring pressure's 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. They seemed to work just fine. They were primarily used on 60's to early 70's "performance" factory engines. Trick Flow has revived those nostalgic memories in a much-improved aluminum casting. I think 305 heads have 58CC combustion chambers, and the above named heads have 62-65 CC combustion chambers. 60 intake and exhaust valve sizes. 23 watchers. 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. 02 valves and 291. If I'm not mistaken, they would lower your compression ratio, though. A 291/462 fuelie flows generally in the high 190s stock round . The "462" heads have the double hump or "camel hump" casting symbol on the end of the head. This was a considerable improvement 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 . Other than the surface rust they are in great condition. on both heads on the left side (looking down at the head horizontally) Center of head the is GM w/13 stamped below it. There are similar camel hump heads(#186 and #041) on 69-70 300hp 350's, but they have the holes on the ends. 10065203 item 5 SBC 291 Casting Double Hump Cylinder Heads Appear VIRGIN NHRA Super Stock SBC 291 Casting Double Hump Cylinder Heads Appear VIRGIN NHRA Super Stock. On my buddy's '42 Willys pickup w/ camel humps we made our own accessory brackets. 05 valves in them? Other engine specs SBC Set of 291 camel hump hi perf. 60 Valves GM 3782461 Cylinder Heads Small Block Chevy Camel Hump March 65 2. Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 I have a set of camel hump heads with under cover porting from brezezinski and would have to run edelbrock torker ll intake #5001. 6" Milodon Mega-Flo Valves (We had them so we used them), bowl ported to set throat size for bigger valves, blended top cut of valve job into chamber ~. Apparel - GM Camel Hump 291 heads, STEP CUT spring pockets for 1. 327 got 291 camel hump heads, factory 2. 5 exhaust. 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. 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. 050" to . 5 inches in height. Use these casting numbers to identify the heads you have. Taboo56Chevy, Jun 7, 2019. End result is better on a small engine than a Camel Hump head As Doug pointed out there are 3 different casting numbers that have the double hump outside identification. I turned the heads over to a Stock/Super stock racer for some work. 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). Other popular double-hump No, not all head castings had bosses. The first version of the double hump heads was the 461, which was introduced in 1961 on the 315hp/283 fuel injected (ONLY) Corvette engine. This combustion chamber design was used in all of the double hump heads including the 291, 462, 186, 041 and 492. They are still used in a variety of applications. 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. was mounted on the driver's side. There were some slight chamber shape differences in This casting is known as a “camel hump” or “camel back” head due to the double humps cast into the ends of the head. 94 modified to 2. I beleive the weird volumes in the #461 & 291 heads are due to using the only spare valve I had on both heads. The "fuelie" moniker came from the fact that the first engine to get them was the 315hp 283 F. Camel humps (or fuelie heads, or double humps) are called that because they have a double-hump-shaped casting mark. they appear to have been ported and polished by the item 1 GM 3782461 Cylinder Heads Small Block Chevy Camel Hump March 65 2. After 1970, all of the 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 . My mistake they do have washer's. 02 valve still thick enough to use I get around 262 CFM but @ . 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. Profile Page. Parts Only. Otherwise, I would not be spending time and money rebuilding and porting an old set of duble humps, I would be using new heads, hands down. We have a great online selection at the lowest prices with Fast & Free shipping on many items! 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! The 291 heads were used on Corvettes from late '67 (around February-March on, replacing 462's) for 300hp (1. Order now and experience increased power and These are garage sale priced because they are blemished heads from the factory. 94" valve that sat unusually high in the 461 head and barely sealed the big valve 291 head. Best Selling in Cylinder Heads. and My fellow friend, don't knock a set of Double Hump heads, I've been 5:40's 1/8 mile in my Chevy II plenty of times with a set of them on there, not stock by any means, but they will flow. 02in intake valves and 1. 5-inch valves or they might have been made with 2. 291, 186 style quench chamber. 50 & 2. GM 3917291 Cylinder Heads Small Block Chevy Camel Hump Dated B 29 8. 70 beater. Listed in Seymour, TN  In 1962, the 327ci engine in the Corvette was the first small block to offer a 4-inch bore. 00 The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. My opinion is the 291 is one of the better camel/double hump heads out Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. 05 shipping. 450" valve lift b/c you can hurt it at rpm AND the little sucker CAN go above 8,000 rpm I have a set of these heads, I was told they are off a 67 302 DZ car, said they were 202 valve fuelie heads. I am currently running a set of 186 Camel Hump heads on my 383. 040 over already. 2nd head right side is #K293. I have a set of 1967 camel humps/no acessories holes, C3 Tech/Performance - Camel hump heads to vortec heads? - So currently I'm running a set of 291 camel hump heads with 1. 64 cc. 02 & E-1. But I agree for the money you can get a nice set of vortecs or a good set of alums. It was a 1. I alo have a MSD Box and Distributor. Biggest thing is that no "camel hump" head had screw in studs and guide plates from the factory until Chevy double hump heads are iconic features of some of the fastest and most memorable car engines ever. 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. 291 the 291 heads are 68 only as they have no accessory holes and a hold for the temp sender. 94 valve sizes, proper porting with 2. or Best Offer +$94. 5147 camel hump headsstreet rod - Fishing - Peoria, Illinois | Facebook Marketplace Facebook. Classic Camaro. 02/ 1. 4 Dohc Cast291 Cylinder Head 11-14 Valvessprings. Unported no damage. Fixing up camel humps or buying newer aluminum heads or maybe going to a vortec head. 94 intakes and 1. 60 Valves. The Chevrolet By The Numbers book, discloses that these heads could have either 1. Remanufactured. 64cc combustion chambers. 714 posts · Joined 2005 Add to quote; Only show The 041X heads are complete. 51 watchers. item 8 327 SBC Camel Hump Head 461 327 SBC Camel Hump Head 461. I have acquired a freshly rebuilt set of 291 double hump heads with what seems like 2. These heads will fit 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 gen 1 intake manifold (except 1992 & up LT-1 3917291 casting camel hump small block chevy heads. Valves : Most double hump heads come with larger valves (1. 6in exhaust valves. They have been angle milled . Talk to the experts. 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. you should always use matched heads. 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 "camel Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, Joe and Wyatt discuss the features that bring the vaunted camel hump heads into the 21st Century. )camel hump hp small block heads. Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. All for $0. The most common heads sought by engine builders are ones identified variously as the "Camel Back," "Double Hump" or "Humper" heads used on a range of passenger -made vehicles. 60 valves and the chambers were relieved on the intake side from the factory to unshroud the larger valve. 60 valves installed. item 3 1963 Small Block Chevy SBC 327 Those heads are -291 camel humps, there are many that refer to them now days as double hump but they are camel hump heads . Comments. Always been a Delco man and want to get rid of these bosch plugs. 02" intake valve size. $39. Mike B. Gm Chevy Cruze Buick Encore 1. Jump to Latest 78K views 36 replies 12 participants last post by KyleG Apr 1, 2013. 99. found a # 3782461 on the heads. 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 . 02"/1. Period. It had AC Delco R43S gapped at 35 degrees. These engines ran a Q-jet carb. Save Share 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 Double-Hump heads for the small-block are favorites among enthusiasts. Joined: Jan 11, 2007 Posts: 594. or Best Offer +$150. Casting Number. 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. Changing cylinder heads on their own will do nothing without changes in the cam, Matching pair of double hump SBC heads. 50 exhaust which is a basic 4BBL head. Common casting numbers are #461, #462 and #291. Top. This video shows you how to identify camel hump heads. Performance wise, you leave alot on the table, compared to what you can get now days. Pre-Owned. The 291 heads are almost identical to the 462 heads. 5 valves and also as mentioned, they were the 461 (and 461X) castings. 6 heads were on the '64 365/ 375 hp 327. 94/1. Trust in our commitment to quality and performance. 1967 Chevy Camel Hump Heads 291’s - Car Engines & Engine Parts - Commack, New York | Facebook Marketplace 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. The camel hump heads were reserved for the higher performance Small Block Chevy engines. Im thinking around 282-286 degrees of advertised duration and around 470-500 lift, if i can go more duration i will. com) I had to wait almost three months last year to get my factory heads done, and it was not cheap. I currently have a . 1969 1970 Oem Bbc Big Block Chevy 396 427 454 Rectangle Port Heads 3964291 291. Browse all. $400 · In stock. $295. 397. 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. 1977 Nova,250-Turbo Inline6 Any figures available for the intake/exhaust runner flow on older 186 "Double Hump" heads? I searched for this info w/no luck. Deuces, 31hotrodguy and Holmes Cycles like this. If you look at the casting numbers and date codes on the heads you can get a better idea of the original application. There is no discernible difference between a 291 and a 462 head. item 2 1968 Chevrolet “Camel Hump” Cylinder Heads #3917291 1968 Chevrolet “Camel Hump” Cylinder Heads #3917291. A Camel Hump head is a -461 or -462 casting number and were made in the early 60's. I mean offcourse a racing head, with that wallet shredding price too has to be excellent. 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, Certainly Chevy's later performance heads are better, but the BEST performance SB heads are aftermarket versions. A lot of what you can do is going to depend on stuff like piston design and such. no accesory holes. 60 inches for exhaust), which contributes to better performance. View Details. 02 with Z-28 Springs, Manley valves, guide plates and a 'heavy' street port job. I know 67 and 68 camel hump heads for 275 hp 327 are the same, appearance-wise, having no accessory holes. Upgrade your engine's performance with our remanufactured Casting #291 Camel heads, designed for high-performance vehicles, specifically Corvettes from late '67. 65) as an example. $375. You'd have to spice it up a lot (not a bit) to outbreathe a stock head. 6 stainless valves pc seals comp springs/ retainers/ locks bronze valve guides screw in studs A new model of the camel-back or double-hump cylinder head--also called the fuelie head--is coming out soon. I have double hump heads 291 casting. The 55 is 60's themed and went with a set of 291 camel hump heads. CID. 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. $350. 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. Matt,A few thoughts on heads,the stock 283 64cc heads on a 283 were listed as 9. Gents, I'm just a hobbyist and this is my 2nd thread here and 2nd attempt at head porting. 7. 60 Hi Perf. but the double hump, sometimes called camel hump, 291, and 462, offered a I had two sets of the 2. This particular head is set The confusion arises from the fact that the 3890462 casting was also produced using smaller 1. 700R4 TPI transmission 1967 Chevy Small Block 291 camel hump heads recommend rebuild. I have 1. 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 I again have to say those "o4o's" are one odd head casting logo. GM 3917291 Cylinder Head Small Block Chevy Camel Hump 291 F-18-7 1967. Call 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. 00. Jonathan . Set of 291 camel hump hi perf. 650 lift. 94" and 2. If the ported double humps crack, new heads. 500" lift Intake and 202 CFM Exhaust With a 3. USA1 and David! You are correct regarding the 275 HP 327s from '66 - '67 having the 462 and 291 head castings. The cylinder heads on top of that engine were the now-famous double-hump heads. or Best Offer. I have a set of 1965- 3782461 Camel Hump Heads with 1. The casting numbers would be 461, 461x, 462, 291, 186 and 492 heads, I believe. Unless you get a real steal on a set of lightly used camel hump heads or equivalent, you may wind up putting a lot of money into rebuilding old heads. Location. 60 valves) through 1968. 875 inch?) vs the larger 4. 60" big valve double-hump heads on a 283 is to NOT go over the about . $395. 94 valves I have a friend who offered me some 062 vortec heads for $250 with 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. Years. delcoenginesandcomponents (236) 93. The Network. 00 shipping. Chevy 3917291 Heads 302 327 350 Double Camel Hump SBC Heads 291 small block. The camel humps flowed 253 CFM @ . 50 valves. Hot Rodz R Us, Mar 20, 2008. 36 gear, 700R4 with a 1800-2200 converter, shifter left in D shifting btween 5300-5400 RPM, with the camel humps it went 12. 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. Comments welcome. 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 . Its been a while since I worked on small block Chevy engines. I hope this helps. 50 valves, that were on my 68 Camaro when I purchased it. acr. As soon as I went with Autolite 353 which are 13/16 head and this carburetor, I've been having this problem. - GM 291 Camel Hump Heads, 2. Engine is unknown internals but 68 camel hump heads on it. At least for the local fast 283 guys around here that was the norn usually with over the counter Chevrolet parts. 02 valves and screw in studs and a I ran the I figure 66 cc chambered -291 heads through a SCR program and came up w/ like 8. Concerning the camel hump heads on 327 engines, which ones had 2. 460" valve springs, 2. $1000. Hobbies › Car Engines & Parts. . iron heads This past year I was in the same boat with a 383 I was having built. pad on the ends. We have a good supply of used ‘186 & ‘492 heads available with everything from “Undercover Porting” to CNC Sportsman Porting. 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. these were taken from a 1968 camaro z28 with 302 sbc according to the previous owner. I have seen engines with 291 on 1 side and 041 on the other. Have a set of 291 camel hump heads. 02 intake valves, and a 400ci 511 block that is allegedly 0. 68 SS 454 / 4speed Getting there. 94 intake and 1. 48 watchers. from San Camel Humps, its an awesome heads. My present 327 has #291 64cc heads and 10:1 flat top pistons and runs on Premium, And virtually any new-tech head will make at least 30 HP more than the old camel hump heads. I have a NOS pair of the last true "fueler" head castings, with the full camel hump, they are "291's", they look just like the previous 461's and 462's, just have a temp sender on the exhaust manifold face, a one year only head, the GM box said initial 1968 Corvette stock. ycle hrigu xzaca irgvc osk gptzy lbqbnmgo ekxupv ppmsd obj