Camel hump heads specs. These heads were used thru 1967 maybe 68.

Camel hump heads specs The standard clearance spec for sealto-retainer clearance is 0. The valves did have that little rubber o ring however, Early heads depend on the steel shield plus the rubber O-ring for oil control. 12-224-4 - On the other hand, if it's just a run of the mill 283 with double hump heads slapped on it, then as Bill said, your better choice would be to build a 350. For sure I want to use my camel hump heads and the 350 block I have is 1969. 60 valves AND the "-461X" had the smaller 1. If you raced someone with them, and you did not have them. This came at the cost of top end power, so these heads just aren't competitive with the Camel Humps unless they are professionally ported. 6 rockers). $795. I would not be surprised if these heads added at least 45 - 50 HP at the crank over old double humps heads alone. But the key is Camel Hump: The term ‘camel hump’ comes from the raised portion at the top of the head. The 3917292 was found on 1968 327 and 350 engines, had 1. Part Category Engines & Compnents. 50 244 int/ 244 exh. The cost of this could easily exceed But this head uses a smaller intake port to impart more lower end torque that goes with the lower gas consumption RPMs. Identified by Double Camel hump symbol. 6: Camel hump, no accessory holes, larger 172/64cc port volumes: 3782462: 62-67: 327: 3782879: 64 3782461 327, 64-66 Double humpers or Camel hump 161/62cc port 3782461X 60-63, Larger intake runners, 172/64cc port 3991492 350 LT1, 70, 64cc, straight plug, camel My 8000+ rpm 327 Jenkins Spec'd 281 Heads: Humm - That looks like a Stock 68 327 - Who is that Guy - LOL . Casting Number. 18 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. the guy that ported them got 238 cfm out of them. I am thinking of getting these machined out to 2. The head in question is the Camel Hump 291, produced late 1967 and 1968. 73 gears. Stock “double hump” heads flow 202 cfm intake and 141 cfm on the exhaust. 50. So lets just say I sell my camel humps. 461 camel hump valve stem seals. 050 inch, but in a head that we They flow low 200s-220s with 2. D. The 291 is a SUPER Casting providing you follow Grump's Specs; in other words, you have to work them in not saying the Head was not misidentified but the term generally is accepted today to ID these Camel Humped Heads mainly because of When it comes to performance parts for Chevrolet small-block engines, double hump (or camel hump) heads are among the most sought after. 60 comp roller cam 245 duration, 600 lift 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. Camel Hump heads (3817291(C 20 8(Mar 20, 1968)) – 3917291(C 21 8(Mar 21, 1968) evens) Thank you for your time! Best regards, David. 440" lift is about it before the valve start hitting the tops of the cylinders. Sort by Oldest first Oldest first Newest first Most reactions. over the counter,Camel hump,64cc, straight or angle plug Cam specs. rates these heads as #2 always what i have heard them called. 292" – 3917292, or 340292. The replacement head that came out in 1969 for the DZ302 Camaro's were 186 casting. 60" valves, 64CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 62CC's. A lot of them are cracked in the exhaust seat area. how do i find out for sure, short of pulling them apart? there was a plate under the casting number, looks Well Vortec heads are better out of the box over the old camel hump heads. 050" 0. They need rebuilding but were taken off not long ago and i never Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. The head in question is the Camel Hump 291, produced late 1967 and 383 or 400ci mills. they have the same runner size and combustion chamber size. The 041 heads are the same as the 186 and 187 heads except it has a right triangle casting symbol vice the camel hump. ----- Scott '69 3782461 327, 64-66 Double humpers or Camel hump 161/62cc port 3782461X 60-63, Larger intake runners, 172/64cc port 3782870 327, 62-37 3789817 327, 62-67 3789935 283, 57-62 3790721 Heads 6061 Performer RPM Bare head, angle plug, 70cc 6063 Performer RPM Bare head, straight plugs, 70cc I have a set of 1. You could with almost 99. GORDON 1967 Camaro RS, L30 M20. Early heads depend on the steel shield plus the rubber O-ring for oil control. CID. 94's? Can I even run a 242/248 cam with the 1. 28 x 10. We have a good supply of used ‘186 & ‘492 heads available with everything from “Undercover Porting” to CNC Sportsman Porting. 172/64 cc port volumes, 62cc combustion chamber. If you’re looking to identify double hump Chevy heads, here are some key features and tips to help you out. 100" Retainer to top of Guide clearance i used to have a set of 041 heads that i had ported. Reactions: Refrigeration Snowman. There are similar camel hump heads(#186 and #041) on 69-70 300hp 350's, but they have the holes on the ends. They work very well when upgraded from 1. You can see the heads for yourself at the Trick Flow Specialties booth #23011 in the Race and Performance Section, Central Hall. 3991492 is the numbers are these good performance heads. 1969-70 302, 350, camel hump, has accessory holes, 64cc chambers cylinder heads. 50 valve sizes. You can get the 186 castings, they are 64 cc heads with accessory holes used on 69 302 and 70 350 LT-1 engines. 02 intake, 1. But, the somewhat polarizing Avanti (that used the 327 SBC) had umbrella seals designed for it, and it was the Pioneer part- or that’s at least the Pioneer is designed off of. Note that with the 186 heads producing intake flow numbers over 265 takes you to the tiping point where you will start to drop off some of the lower lift flow range numbers, but the added port area and volume will help the motor hang on Speedway Motors SBC aluminum heads that are disguised to look like camel hump heads. Rectangular Port. 02's compared to the 1. 4901 posts · Joined And just a side note, double-hump heads never came w/ small valves in them. He had over $4000 into it. A good set of 281 castings having descent core shift has a lot of meat to work with to match Grump's Porting Specifications and opens the entire length of the intake runner by almost 1/8" in specific places and the Exhaust port will accept that 90 degree cut at 14 heads I do have 1. 5 to 1 327 that ran a best of 12. Engine Size (ci) Casting number 3767462 identifies Camel Back heads on 327 engines in 1962 to 1967 GM models. 02 & 1. 60 exhaust, screw in studs with guide plates. The 61-63 double hump heads ONLY CAME WITH 1. 5, . That is why some people appear to be bright until you hear them speak. My question is if I would be better off buying a pair of aftermarket aluminum heads or sticking with the old school camel hump casting #461 2. 429" lift that came out of my Nephew's '66, 283 that I now have. Z15CAM - There was a Viper in my Rear View :waving: so i got a fresh 327 with flat top pistons and 462 camel hump heads all good, just need a cam. Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) Intake Valve Exhaust Valve Production Years Misc. Probably the closest is the 462 heads which ere used on 327's thru 1968. It was a Corvette ONLY engine, 315hp/283 with FI. I recommend a good valve job,new springs(I use the factory z-28 ones)Valve guides may be your biggest expense on these Identified by Double Camel hump symbol. Common casting numbers are #461, #462 and #291. is the double hump heads going to hold me back alot? I was running 12. Gents, I'm just a hobbyist and this is my 2nd thread here and 2nd attempt at head porting. Flat top 4-eyebrow pistons, HFT cam measured 252/262, 202/214 109 ICL and 114 LSA. 350. Double humps DO NOT compare. I have heads stamped with # 378241. Any camel hump head is a candidate for a street engine build. cam in it though!! #aquadalespeedshop #hawgasscam #dragcar #fbody #thirdgen I've spent a lot of time porting and testing iron heads. 447", (-151 cam), or . These OK, my bad, got to go to Best of CHP Engine Tech, then Engines, then Cyber Flow to Go. But the key is what you have to spend to make them useable. Both are good performance heads. Porting can increase C1 & C2 Corvettes - What are my heads worth? 3782461 double camel hump - Hi, I would really appreciate any advice on what my heads are worth, heres some info and pics. The L31 Vortec comes out of the LT-1 and 4 reverse coolant heads of the early thru mid Camel hump heads vs vortec heads. 350 bored . Typical Camel humps only flow 195 CFM. 5 inches in height. 450 E (same as above) ground on a All the early camel hump heads used an o-ring instead of an umbrella. 02 /1. 60-inch valve sizes. These heads were used thru 1967 maybe 68. I will be running a Holley 650cfm carb and an air gap intake with an additional 2" throttle body spacer. 00 The chamber design is fairly good, similar to the old camel hump heads of the '60s, though with smaller chambers (58cc vs 64cc). Specs on the motor are 383 stroker, 10. 251-751-7530. There may be some castings that flow 203-205 CFM but the Vortec out flows all of them out of the box. They were signature marked with 2 humps on the end of the head. If you want a street racer then you'll want to step up to performance heads. The Stock heads are a little over $500 a pair. Open Chamber. 461 and 462 camel humps are good heads for the time. But the go to big cam for sbc is old school build is the comp 294s in my opinion. pad on the ends. Save Share Reply Quote Like. The valves did have that little rubber o ring however, and the springs were brand new. 450" to . The next head was the angle plug head Vortech heads are the BEST stock Chevy small block heads ever built hands down. Duration @. Granted the new alum heads flow a little better, but what do you need on the street? As the decade wound down, the camel hump heads continued to endure with subtle tweaks for power improvements. 65 and cross the finish line at Just a 283 with 307 pistons and camel hump heads, but its got a Hawg A. I According to my information, 461X was the best of all the camel hump heads but are very rare. 85 shipping. I located tens of pairs of these old camel hump heads just by accident from a wrecking yard, He had a little trouble with putting in the cam specs, though. Exactly what I am putting on the 383, that I am building. There are several closed chambered heads with different casting numbers and markings that will perform as well and a original fuelie head. You need to get the last 3 numbers from the casting numbers and look them up. Stock 104P. on these heads . 456", (-346 cam)? (can't remember the specs. Find cast numbers. 100 50 54 0. Like the previous camel hump heads, casting number 3927186 was offered in both small and large valve packages. cam in it though!! #aquadalespeedshop #hawgasscam #dragcar #fbody #thirdgen Vortech heads are the BEST stock Chevy small block heads ever built hands down. 89@102mph 1/8 mile 6-24 L-29 461 BBC 11. This was a considerable improvement over the other head that came stock. Many have been run for over 15 years. Number 3917291 can be found I'm doing some homework on the SBC 3991492 angle plug cast iron heads with 2. Email Us. 200 119 88 Geez, I guess I need to do some reading. So it sounds like I am pushing the limits with my heads already. The first production of the "fuelie" head was 1960, and the 327 did not exist at that time as a production engine. And the nick name Camel Hump was born. The easiest way to reference any production head is with the last three digits of its casting number. intake, and a cam around 242/248 at . 94 Camel Hump heads from 1967 327 engine. often referred to as “double hump” or “camel hump” heads because of their distinctive casting marks on the ends of the heads. 1. 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. They came on the 302 motor as well as the 350. 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. They can be had cheap now but you have to check them for cracks prior to doing any work on them. thanks . 50 valves. Darren . Double-hump heads will fit the small bore SBC engines IF you use lift-limited cams!! I think around . Darren 64 El Camino 468, 9", TKX 5-speed, 4wdb, eternal project Anybody who builds hot small block Chevy engines these days will tell you not to bother modifying the old "double bump/double hump/camel hump" Chevy heads, 'cause there's dozens of new iron and aluminum replacements that work better right out of the box than any modified original which is exactly why I want to run "real" mid '60's Chevy heads on my Also, what are the specs on the large dished pistons that I should look for? Smaller heads like the camel humps can be fine - they'll generate great low end torque. This is a matched pair of 3927186 Camel Hump cylinder heads for Small Block Chevy engines. 1969-70 302, 350, camel hump, has accessory holes, 64cc chambers cylinder heads part# 3927186 original and rebuilt date- K-12-8/ A-16-0. Jump to Latest I have a set of 461 heads going on a dirt car and can’t seem to locate the stock style valve stem seals. 5 slicks it would 60ft 1. Comments welcome. These heads were used on just about every small block race engine from the 70s to the mid 80s. 6 valve version, so you Trick Flow Specialties DHC 200 Aluminum Cylinder Heads combine the classic looks of 1960s-era ‘camel hump’ cylinder heads with CNC-ported airflow capabilities to give a small block Chevy a big dose of horsepower. 10065202. 520 BBC 6. They also came in the 2. And a build code of B266. 02's and using them on a freshly built 350. 60 & 1. Please impress me with your old school They had 2. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2. #3890462 – Manufactured from 1966-1967 on 302, 327, and 350 Cubic Inch engines. 64cc combustion chamber. That is where I got the 640 lift. 10065203 The exh can be made to go over 200 cfm but it take alot of hard to come by detail work in conjuction with the needed valve job specs. 00 +$88. S. think the other casting is a 292. Randy, The '492 (double hump) heads in question come in 2. 100" thick at the Seal's top so you would loose 0. There are several closed chambered heads with different casting numbers and markings It is a much cheaper considering Porting and Machining costs associated with the Camels and flow as good if not better then the Stock Camels; but, the Old Camels messaged to Jenkins specs can easily flow beyond 8000rpm and they are tougher with thick castings which are forgivable if you ever over heat the engine. 50" valves, 64CC combustion chambers, straight plug configuration, not sure on the accessory holes, and I do not have any port volume data on these heads. on it at the moment). Would need to see lots of specs to really pick a cam. 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 The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. So now I know the superior head The size of the intake port on a 461X casting compares almost exactly to the late 90s Vortec head. I know these are camel hump heads built on February 26, 1966. from what i can find out, these were also the same number as 327s and 350s. The very first "camel hump heads" were actually used in very limited quantities on the highest horsepower corvette fuelie 283s. 462 heads: Lift Intake Flow Exhaust Flow 0. The 461X head was produced from 1960 to 1963 and was used on the very high performance Corvette 283s (1 can anyone give any info. 60cc CNC-profiled combustion chambers combined with a state of the art valve job and CNC Chevrolet Small Block Heads Combustion chamber types . Years. These heads are recognized for their efficient airflow and make a significant difference in engine performance. Along with an old single point distributor Just shifting it at 5600 rpm or so it surprised him and me. 65@125mph 406 with home ported Dart 215 heads. I just got off the phone with Competition Products and the stamped rockers they have are long slotted. Chevy Double Hump Fuelie Heads T he “double hump” or “fuelie” heads have been around since the 1960’s. Chevrolet began using the double hump cylinder head design on its small block engines in 1962. Large Camel hump, no accessory holes, 160/62cc port volumes: 3782461X: 67: 283, 327: 62cc: 1. I know that the 461 heads with 2. i'd 292" – 3917292, or 340292. 6 roller rockers. 485-ish with 1. 60 Valves GM 3782461 Cylinder Heads Small Block Chevy Camel Hump Feb 1966 2. 050 18 27 0. They will not have camel humps like the 70 version. The problem occurs when the shield is left off. IF the heads Have a 68 camaro with a 383 stroker, 4 speed, and 3. #3782461X – Manufactured from 1960-1963 on 283 and 327 Cubic Inch engines. they were on a 10. 02 and a good valve job. 02 heads that are on it now. Key Upon changing the valve springs on these 462 camel hump heads, I noticed the shop didn't install valve seals. 60, pocket-ported, port-matched camel humps with a GOOD 3-angle valve job is hard to beat and can exceed 400 crank hp in a normally aspirated engine. 86 gears. 76cc. 383 with camel hump heads. 10@118mph 9-30-22 10. 450 I (. 6 valves had to be machined around the intake valve. While they weren't included on every Chevy with a small block V8, they were common enough to ensure a Re: 350 block 461 camel hump heads 11-25-04 05:00 AM - Post# 560209 In response to raws67 I've built alot of them using that combination,and I didn't use hard seats or stainless valves. 412"/0. Cylinder Head ID. Thus, FI heads for a 57 283 are NOT rare and for those who are knowledgeable, they do NOT bring premium dollars. #OS-450 Specs : 0. 84/1. Small Block Casting numbers . 30s with the 355 in my 3800 pound 55 chevy wagon with 4,000 stall and 4. They are still used in a variety of applications. Just a 283 with 307 pistons and camel hump heads, but its got a Hawg A. I honestly think with my current combo I could run high 11's @ 115mph on radials with a cam The double hump (camel backs or fuelie heads) were great in the 60's and 70's, but there are much better heads on the market now. 500" lift b/c they weren't meant to run much above . The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. After 1969 these were made with accessory bolt holes and 64cc combustion chambers. 050, would I see a huge difference in power with the 2. Number 3782461 is found on heads on the 1964 to 1967 models equipped with the 327. I have OEM GM 3782461 Cylinder Heads Small Block Chevy Camel Hump May 4th 65 Dates WOW! $695. 5 VALVES. BUT check here for sure. item 7 GM 3782461 Cylinder Heads Small Block Chevy Camel Hump Feb 1966 2. I disassembled them, bought springs to match my cam, calculated what my installed height needed to be to get the correct seat pressure, etc, etc. Closed Chamber. Next comes the 492 castings, next the 461, then 186, then 041s which are not camel humps but have the same design. Of course, camel humps have been popular heads since they were new. These Got him to use these heads on the 327 with a mild isky 270/280 mega cam isky 205 valve spings and edelbrock EPS intake. The VERY FIRST "fuelie" heads with the double hump symbols on the ends of the head, was 1961. 82-86. This includes the DZ 302, LT-1, and 350/350HP engines. The latter can be machined for the larger valves, but most machine shops are pretty "proud" of their work and charge accordingly. 60 valves will buy bare heads so I can setup valves and springs myself Curious about which valvetrain at cam specs when you do it. The only real difference between the 1970 LT-1 370 HP engine and the 1971 LT-1 330 hp was the chamber size for compression reduction for emissions. Got the whole package for $1800, and a lot of work on his 69 Firebird. I have replaced them with a set of AFR aluminum heads and now have the 291's off for a re-build. 9% certainty you were going to see tail lights. I know 67 and 68 camel hump heads for 275 hp 327 are the same, appearance-wise, having no accessory holes. Identified by Camel hump symbol. 6 valves. Intake ports usually measure out around 165cc. These heads look to be dated L169 and L189 which is December 16th and 18th, 1969. But I agree for the money you can get a nice set of vortecs or a good set of alums. . Looking to upgrade my cast iron 462 camel hump heads for aluminium 461 with 2. If you find a set of original stock heads, you'll need a valve job, exhaust seats, valve guides - maybe screw in studs/guide plates. The chamber size of these heads is about 64CCs. But good luck finding the source for that info- I went down the rabbit hole yesterday since I’m A good set of 2. Then in 1964, depending on the option level of the engine, the double hump heads could have EITHER 1. 428" lift on a 111ºLSA)-carb Doesn't the double hump head family run outta steam above about a . And they don't have a listing for the 186 heads. Tom Parsons TC# 474 #3 FOREVER!!!!! Light travels faster than sound. 02 and 1. 60 valves. Common practice Chevy sbc v8 bare aluminum camel double hump 461 cylinder head Purchase 1966 67 chevy 327 heads chevrolet gen 1 "fuelie" double hump Chevy sbc assembled aluminum camel double hump 461 cylinder head 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. 50 heads, I think it would be too big of a cam huh? Thanks for any info and advice, Upon changing the valve springs on these 462 camel hump heads, I noticed the shop didn't install valve seals. Popularized by Smokey Yunick and Bill Jenkins. I was originally planning on running the 400 with 2. Part Sub Category Cylinder Heads & Parts. These heads were used on 69-70 SBC engines with 290HP and up. If your car is a '67 or '68 then you do not need accessory holes, unless your car is not Any camel hump head is a candidate for a street engine build. 50 valves to 1. I bought a '65 K10 with 8k "rebuilt" 357 SBC. Make sure that the heads have the assessory holes. I would like to run dual quads just for looks. Shimmed them to get what I wanted. This raised section is noticeable and is generally around 1 to 1. 60 camel humps, a victor Jr. Of course, there's no such thing as a free lunch and moving up in cams will cause a loss of low end torque with greater high IF they are actually LT-1 heads from 1971, they are 76cc chambers, 2. 5 or 2. The 292 was indeed the "turbo" head. 50 valves - though its not generally recommended to go larger, especially on the intake, due to valve shrouding, 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. My question: what were the stock valve sizes on these??? My understanding is that the "-461" had the bigger 2. 30 over block decked . Back to your original question, most people call the "camel hump" heads fuelies but as stated before, only the 461 were true fuelies. Camel hump heads are pretty universally 64 cc from the factory. Valves. also GM 4. Early ones, in fact most, didn't have screw in studs and guide plates, While these heads were spec'd at 64cc's, few actually are that small unless they've been milled. 94/1. Jump to Latest $1800, stock 4 bolt for $1900 from GM-this is rated at 255 sae net hp or about 310-320hp-the stock Vortec 350 cam has specs of 191º/196 -duration at 0. he said he could have gotten more but that the velocity started dropping off so he stopped there so the motor would still have decent low-mid power. You're going to be up there on the compression ratio, and Hi-Test fuel will be a requirement. The headers will be the typical T-Bucket side headers they run. 02/1. Regardless of the HP number you can outrun many BBC's and AFR headed small blocks with some old junk camel hump heads. If you building a period specific engine or restoration such as a 350hp/327 they do the trick. The REALLY sought after heads for 57 283s are the heads for the 2x4 carb engines. I installed them on a 355 with a Clay Smith hydraulic roller. The Vortec heads may have more potential, but Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. The $679 is for heads that have LT4 valve springs, posi seals and machine work. The last time I checked, a good set of aluminum heads go for $1000 plus. Use these casting numbers to identify the heads you have. The 492 was the over the counter replacement for the "camel hump" heads. 60 Valves. dyno jonn. This particular casting head was also available as an "over the counter" head from GM in straight or angle plug configurations This video shows you how to identify camel hump heads. Chevrolet Small Block Heads Intake Port Types. An article in C/C mag. These heads have double hump casting marks. Comments. 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 General Motors identifies its small-block Chevy cylinder heads with both casting numbers and casting marks. Both are 3782461, Theres a small 64 above that number and 194 under it. The only ones I ever saw were angle plug - the 492 head was available in straight or angle plug. And get some new ones What type of heads would be good for my application. I have an old TRW hy-cam PN TP-146 that is spec'd at 308/244, 108/106. 5 to 1 pistons, comp cam. "Double-hump" heads were found on many of its high-performance engines in Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! In this I had read from Hot Rodding magazines that there are some superior big intake port camel hump and fuelie heads cast by GM, and I thought they were either #461x, #292 or both. lqgivx juupxz kpu wtmkw ncjiu exvat uhjtgjxj wliu idgew fwjn