3917291 heads

Parts classifieds change daily so if you don't find what you want, come back in a few days and try again. 64cc combustion chambers. 02/1. These particular S / R Cast Iron Cylinder Heads Technical Instructions for assembled & bare head part numbers: 043600- Bare (Straight Plug, 76 cc Chamber, Cast Iron) 043600-1 Hydraulic Flat Tappet Camshaft (S traight Plug, 76 cc Chamber, Cast Iron) 043600-2 Mechanical Flat Tappet, Hydraulic Rolle r (Straight Plug, 76 cc Chamber, Cast Iron) S / R Cast Iron Cylinder Heads Technical Instructions for assembled & bare head part numbers: 043600- Bare (Straight Plug, 76 cc Chamber, Cast Iron) 043600-1 Hydraulic Flat Tappet Camshaft (S traight Plug, 76 cc Chamber, Cast Iron) 043600-2 Mechanical Flat Tappet, Hydraulic Rolle r (Straight Plug, 76 cc Chamber, Cast Iron) Technical Instructions for assembled & bare head part numbers: 043600 I-052 Bare head, 23°valve angle, 170cc intake runner, 76cc chamber, straight plug 043600 – 1 Assembled head, Hydraulic Flat Tappet Camshaft 043610 I-052 Bare head, 23°valve angle, 170cc intake runner, 67cc chamber, straight plug Types of GM Vortec Heads. do NOT contact me with unsolicited services or offers I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. World’s S/R cylinder heads are the preferred alternative to expensive OEM castings or junkyard rebuilds.


I believe they are 1. The 462 is one of the best flowing production SBC heads. YEARS: CASTING# CID: Intake : Exhaust: CC : COMMENTS: 1971-75: 330545 : 307,350 : 1. Pair SB Chevy DOUBLE-HUMP heads 3917291 - $80 (TOPEKA) Pair, 1967-68 Corvette Camaro Nova Impala 3917291 Double Hump Bare Heads/Pr. The heads have only undergone minor revisions over the years since their introduction in 1997.


291's are virtually identical to 462's according to David Vizard's book on Chevy's. 6: 250-375: 64 CC Chambers No bolt holes These are the double humps. Shop with confidence. 94 valves haven't got a chance to look at them yet ), my cam is a 327/ 350 hp stock L79 cam, my intake is a stock gm intake #3905393 and have a 4 bbl quadrajet. 50 valves.


1. This is for a Pair of Bare 3917291 Heads, (GM Part Number 3917291, GM Group Number 0. 50. small block chevy 3917291 double hump cylinder heads corvette camaro nova ss 68 | ebay More information Find this Pin and more on equipment by wandamcmurray . 500" Straight Plug.


Casting #3917291 Redone about 12 years ago by Figga automotive in Somerdale nj. $300 . 02 intake valve size and different combustion chamber sizes are found in other years with casting numbers 3782461 (64-66 model years) and 3890462 (66-67 model years). $30. these were taken from a 1968 camaro z28 with 302 sbc according to the previous owner.


There were other heads used in Chevrolet engines which may have ended up on your motor if it's not original. "041" heads are the same internal casting as "186" heads and available with 1. 60 valves and the other comes with 1. 50" exhaust valves, although this head was never used on the 302. 60 Exhaust for those years.


02in intake valves and 1. Small block chevy head castings; Casting # Combustion Chamber size CCs Intake valve Exhaust valve Production Years Misc Engine; 10033867: 62cc: 2. These heads have been hot tanked, shot blasted, tumbled, cleaned, inspected and magnafluxed and are guaranteed machinable and guaranteed to be free of cracks. They are complete with valves/springs. They are simply the Tonawanda casting plant's version of the same head.


The Vortec heads are a little bit lighter than the older heads and have a “kidney” or “heart” shaped combustion chamber that is more efficient than the double hump chamber. Today, these engine-breathing regulators are usually referred to as “Fuelie” heads, because they were released on Corvettes with Rochester’s fuel injection. Small block Chevy heads numbered 3782461, 3890462, 3917291, 3927186, 3927187, and 3947041. 1966-1967 Chevy/corvette 3890462 Bare Cylinder Heads/pr Chevelle/nova/camaro 66 Engines Limited provides classic Corvette owners with numbers matching engine rebuilding, block stamping, block broaching and searches for hard to locate parts. do NOT contact me with unsolicited services or offers There are at least six castings that use 462 as the last three digits of a casting number.


. Although we haven’t seen it yet, as they become harder to find we predict the following oval port heads will start turning up with changed numbers. favorite this post Apr 20 Car ramps $30 (York) pic map hide this posting restore restore this posting. . Featuring head 3917291 available today online.


02 valves - just as good performance wise. Its a 1967 327 small journal crank, the heads are dbl hump heads #3917291 ( I'm not sure if it's the heads with 2. Number 3917291 can be found on the 302, 327 and 350 engines in 1967 to 1969 models. If you have the "Double Hump" heads, they may be casting number 3917291 or 3990462, which was used on the 302, 327, and 350 in '67 and 68. Intake runners, combustion chamber, and valve pockets all polished.


60 exhaust 64cc chamber. The following is a list of some GM production SBC cylinder heads, many of which I consider to be desirable castings for performance. 94/1. 940" x 1. Edelbrock Alm.


Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) Intake Valve Exhaust Valve Production Years Misc. I have a set of Chevy Camel Hump Heads casting number 3917291 These heads were ported and polished and valve job years ago. To Search Our Page Using This Function Press Ctrl + F. Other 'pairs' of 327 heads 1. Fairly early dates for this particular casting.


It was standard equipment on the 350ci LT1 engine produced in the early ‘70s. 1968 Camaro Z28 302 Cylinder Heads 2. The machined valve cover rails help to eliminate leaks. He doesn't give actual numbers, but Brian sounds right. complete 6073 Performer RPM 70cc, 170cc intake port, straight plug, complete 6075 Performer 65-up, 70cc, 2.


I have included some information on each casting. These are the 1. 305 and 63. - 16 new valve guides installed. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads I have a 1967 327 engine, the casting number is #3903352.


These heads can be bolted on. 995 cc combustion chambers respectively. It is like "041" heads in '69 & '70. The 492 was the last of the double-hump heads. have umbrella style valve stem seals.


But they were never ever installed at the factory on Z/28's even though a number of books will tell you they were ("041"s seem to have mostly came on 300 HP 350's). 00. 12 results for 3917291 heads Save 3917291 heads to get e-mail alerts and updates on your eBay Feed. does that mean anything?? thanks. casting number is 3917291 and only has accessory holes in one Find great deals on eBay for 3917291 heads.


6, screw in studs, guide plates, heat riser This video shows you how to identify camel hump heads. Camel hump heads, 64cc chamber, large port, 2. These happen to be casting #3917291 with 63. Does anyone know if the castings are the same and they are just ground for the different size valves? These are heads that would have been used in Camaros as either standard or replacement during the period. The extra thick decks and walls improve reliability.


02-inch intake valves. The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the older heads. 3917291 and 3927186 are the Saginaw (Flint assembly) casting plant's heads. Number 3927186 is found in the 1969 and 1970 models with the 302 and 350. Bare in mind that every set of small block chevy heads will bolt into pretty much every small block engine built,that may be the extent of the bolt on though.


New valve seals. favorite this post Chevrolet Camel Hump Heads 3917291 1967 Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. 50 $799. It is usually found on the top of the head in between two valves and the rocker arm studs. In 1962, the 327ci engine in the Corvette was the first small block to offer a 4-inch bore.


Chevrolet Head Casting Number Reference 3917291 302, 327, 350 Camel Hump or Double Hump 161 / 65cc Ports World Products Cast Iron Heads ( by part numbers ) Help me identify if i have true Fuelie Heads Page1 - Discuss Chevy High Performance, Car Engine, and Chevrolet Tech topics in the Chevy High Performance forums at Super Chevy Magazine. Find our broad group of head 3917291 available for purchasing right now online. I purchased for a project that no longer exists. 6in exhaust valves. Some details on the heads: - Thermal cleaned, media blasted, and magnafluxed.


Buy here! Heads 3917291 are not the correct head for this block. Heads 6061 Performer RPM Bare head, angle plug, 70cc 6063 Performer RPM Bare head, straight plugs, 70cc 6071 Performer RPM Same as 6061 exc. These World Products heads come with hardened steel exhaust seats compatible with unleaded gasoline. This site is for Corvette C3 enthusiasts and has lots of information pertaining to Corvettes built between 1968 and 1982 Chevy 'Fuelie Heads' The 1st 'Fuelie Heads' were found on the 283/315 HP 'Fuel Injection' Engine, and then on the 1962 > 327/340 HP and 327/360 HP 'Fuel Injection' Engine. 60 EX.


02-1. 1967 CHEVROLET Corvette SMALL BLOCK HEADS 3917291 DOUBLE HUMP CHEVY (lot 3) 1967-1968 CHEVROLET 327 350 Cylinder Heads 3917291 K 17 7 & K 24 7 Matching - $250. how do i find out for sure, short of pulling them apart? there was a plate under the casting number, looks like it says F 1 7. 94 or 2. Tracy Performance , Special Parts for Special Cars: Hot Rods, Classics, Racing and Sports Cars, Since 1970.


from what i can find out, these were also the same number as 327s and 350s. heads are assembled. Casting # Years made Valve Size HP levels used for Chamber Size / Notes; 3782461: 61-70: 1. where can i get the sbc cylinder head manual you mentioned? you know i have a Haynes chevy manual, that said these heads and some others, had good power potential. The 1100814 alternator, 1108367 starter, 1111266 distributor, pulleys and brackets have all been date-coded.


02 intake and 1. 2 days ago · I have a set of heads I took off a 1967 Chevelle that needed a valve job, the heads are not cracked. Enthusiasts usually identified SBC heads by the last 3 digits in the casting number. Casting 3917291. World Products 043610 - Cylinder Heads Cast Iron Chevy Small Block S/R 170cc 67cc 23Degree 1.


Rebuilt set of 3917291 Chevrolet cylinder heads with dates of D57 and D97. For best results, please be specific and be patient. 50 exhaust or 2. No guide plates/studs or rocker arms $500. The biggest modification was a switch from perimeter valve cover bolts to center bolt configuration in the 1999 model year.


94 1. , both are 64cc. they appear to have been ported and polished by the previous owner as all ports are smooth. Those were rated as intermediate with 1. Other popular castings include the 291 (3917291), 292 (3917292), 186 (3927186), 187 (2927187), 414 (3973414) and 492 (3991492).


94" intake version with closed 64cc chambers. 00 1967-68 Corvette Camaro Nova Impala 3917291 Double Hump Bare Heads/pr. These are in original factory configuration and have not been modified. If you do have a head with a number not listed here, you can find it in "Chevrolet By The Numbers" by Alan Colvin. 60" 1968 chevy 327 block # 3914660 with double hump heads # 3917291 was covered , been sitting for years , project i never got around too .


A buddy came by the shop with a great deal on a 350 sbc block & a set of great 292 cylinder heads,so let's do some work on the heads,do some cleaning up & a lesson on serial #'S,thx for watching favorite this post Apr 20 Chevy 3917291 heads complete $400 (Nottingham,Pa) pic map hide this posting restore restore this posting. 1967/68 291 Chevy cast iron smallblock Chevy fuelie heads. Number 3782461 is found on heads on the 1964 to 1967 models equipped with the 327. 5001 : 74 : 1971-73: 330862 : 400 : 1. This information has been gathered from several sources and has not been verified On the non-bow tie L31 Vortec heads, the ports are larger than the older cast steel heads, so they outflow the older heads.


i guess they will gain a few horses over the 14022601 heads that are on there. they have been It’s time to make more room and sell some of my odd ball singles so up for auction is a single Small Block Chevy double hump cylinder head that needs repair. The cylinder heads on top of that engine were the now-famous double-hump heads. 268), Dated A 2 8 and A 6 8, (January 2nd and 8th of 1968). These are the casting codes for the Z28 - 302 heads, but dont have the 2" valves, so technically not, but could work with valve job? They were also used in all other years, I think 63cc.


The only difference between a 1968 327/250hp (L73) and 1968 327/275hp (L30) is the heads, the L30 gets the 1. Casting number is 3917291, head is dated J27, (October 2, 1967). do NOT contact me with unsolicited services or offers Sbc double hump heads. Also noted as the 'Double Hump' or '461X' Castings. 60 exhaust.


Bare Casting. This is for a Pair of Bare 3917291 Heads, (GM Part Number 3917291, GM Group Number 0. 50 & 2. do you have any idea which heads would have came stock on a 73 camaro type lt with l48 175hp 350ci? thanks again An original 302 crank (p/n 3941176) has been added, along with 11:1 pistons. Reconditioned.


Buy used cylinder heads and parts for a Chevrolet Corvette from top-rated salvage yards. 60 exhaust valves with 64cc combustion chambers. 00 ONO There are many compelling reasons why it's smart to use S/R cylinder heads instead of worn out junkyard parts or new OEM castings. I hope it helps you identify the Chevrolet engine parts you are working on. PLEASE VERIFY THE INTAKE PORTS OF THOSE AND THE #461(x).


60: over the counter 23 degree, angle plug, 196 cc intake runner, Aluminum The confusion arises from the fact that the 3890462 casting was also produced using smaller 1. 69 Camaro 350 performance long block double hump 69 cast iron heads Casting #3917291 64cc 2. Used generally in '68. Chevy V8 SBC Block and Head Casting Numbers Chevy V8 BBC Block and Head Casting Numbers Chevy V8 "W" Motor 348-409 Casting Numbers Chevy V8 Crankshaft Casting Numbers Chevy V8 Crankshaft Journal Sizes Chevy V8 Bore and Stroke List Chevy V8 Notes SBC Crate Motors BBC Crate Motors SBC Cylinder Heads Holley Carb Information Holley Tuning Tips Re: Runner volume chart for vintage SBC heads? Old Chevy High article? Lemme dig out an old book. If your into extreme reliability from sub zero arctic conditions to summer desert heat, these cast heads will handle the punishment for your performance application Closed and Open Chamber Chevy Small Block Heads are Available.


02 intake 1. Casting number 3767462 identifies Camel Back heads on 327 engines in 1962 to 1967 GM models. 00 . Closed and Open Chamber Chevrolet Big Block Iron Heads are also Available. 02 IN, 1.


Types of GM Vortec Heads. " Hope that helps. It may take several seconds to display the results. All early #3917291 (1) heads dated from March to April will have the temperature sending unit boss, but it probably will not be drilled and tapped. 50" Exhaust Valves.


94 vs. 586-772-8901 , Fax: 855-FX-TRACY The Detroit Source for Auto Parts, Accessories, and Racing Equipment External casting marks on cylinder heads have caused confusion among a lot of people when they first glance at a set of heads. Triple angle valve job. Comments welcome. Casting #3782461X The 1st 'Fuelie Heads' came through with 1.


We would like to thank everyone that has contributed to the data provided on this site. Unfollow 3917291 heads to stop getting updates on your eBay Feed. Search Results for 3917291 Parts. 72 : 1. Just been sitting on a shelf, time for them to go to a good home $450 or DOUBLE HUMP Camel Back FUELIE HEADS GM Casting number 3917291, Date Codes K21-7,K24-7 which I believe is 1969.


60 Valves 3917291 Casting double hump New listing 1968 Corvette 327 300 Engine 3914678 Cylinder Head 3917291 Original HE A big block Chevy (BBC) or small block Chevy (SBC) head is readily recognized by most, as are MOPAR Hemi heads, small block Ford (SBF) heads, and depending on experience and engine preferences, others as well. 94 intake valves with bigger springs. Are these heads any good??? I was offered them with hardened valve seats for $100 bux. 50" or 2. They were used between 1962-1968 on various HP versions of 302, 327, or 350 engines.


Texts preferred, calls OK, but most likely will be routed straight to voice mail so leave contact info, if you want me to return your call. 02 or the 1. 94 Intake and 1. LS1 Cylinder Heads LS1 cylinder heads were developed simultaneously with the Vortec and LQ4/LQ9 cylinder heads. 1968 heads were also produced using casting number 3917291, but 1968 heads included a The production of this head started in March/April 1967.


L29 7 is the casting date; L=12th month=December, 29=day of the month, 7=year, in this case 1967. The use of these cast heads are encouraged due to their extra thickness and increased strength. We also offer Closed and Open Chamber Big Block Large Port Iron and Aluminum Heads. 02: 1. $300.


For sale is a pair of original "double-hump" cast iron small block Chevy heads. This head has 2. Heads for 348 and 409 Engines are Available from Tracy Performance. Up for sale is a nice set of 291 Camel Humps. Bryan, you said you´ve got #292 heads there.


32I~6O4~656three. $525 favorite this post Apr 20 Chevy 3917291 heads complete $400 (Nottingham,Pa) pic map hide this posting restore restore this posting. Reconditioned w/ new valve seals. Quality set of heads. They could have come with either 1.


2. 5001 - 1971-76: 333881 : 350 The 3917291 heads come in two types, one comes with 2. They had been hot tanked but started rusting so will have to be cleaned again. Drill accessory holes on sb heads; Welcome to Club Hot Rod! The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. Both are casting number 3917291 and both are date coded 1967.


Sbc 300 hp double hump heads. The Complete Cylinder Head Guide for Chevy Small Block Engines A factor more influential toward successful high-performance engine building than any other is the cylinder heads. Removed from a flawlessly running 454. THese do not have the accessory holes. "462" – Could be 3890462, 3891462, 3990462.


Also: solid axle Corvette, Sting Ray Corvette, Chevelle, Camaro, Pontiac, Mopar, Chrysler, Oldsmobile. $525 Mozilla Firefox, Google Chrome And Internet Explorer All Have A Built In Search Function. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. So in theory a 1968 L30 327/275hp or L48 350/295hp engine should have 291 heads if assembled at Flint or 040 heads if assembled at Tonawanda. Engine Size (ci) Aluminum Chevrolet big block heads numbered 3904392, 3919842, and 3946074.


favorite this post Chevy 3917291 heads complete - $400 (Nottingham,Pa) hide this posting unhide < image 1 of 8 > 210 Maple Drive condition: good make There are at least six castings that use 462 as the last three digits of a casting number. Buy Corvette Nova SS Chevelle Camaro Chevy II Impala 3917291 double hump heads motorcycle in East Alton, Illinois, United States, for US $400. 94 intake 1. Put an intake valve in it´s place in both heads and check which head´s intake port will swallow more water. What are the valves sizes on sbc heads casting number 3917291? they could have either 1.


I don't have the valve info. A Small Block Chevy tech site with Block casting numbers, Cylinder head casting numbers and much more information. The tops of the guides were cut down for additional camshaft lift if needed. The form below allows you to search for car, truck, motorcycle or boat parts in real time. How to identify camel hump (aka double hump) small block chevy heads 350 CHEVY HEADS BEST AND WORST PART 2 2) A pair of 3917215 heads from April 16/18 of 1968.


94" Intakes and 1. Telling the difference between the various SBC heads can be hard if all there is to go on is what they look like. Sometime in May or June of 1967 the boss was drilled and tapped in preparation for the 1968 model year. 5 exhaust or Hi Performance heads with 2. 5 valve Fuelies (3917291 for Flint or 3947040 for Tonawanda engines) which is a 25hp gain for the larger ports, higher compression and bigger intake valves.


They are special hi-perf used 67-68 on 302, 327, 350 engine's. 3917291 casting camel hump small block chevy heads. 02 Intake and 1. 60 aftermarket valves, guides, springs and crane roller rockers performance cam steel crank high There are many compelling reasons why it's smart to use S/R cylinder heads instead of worn out junkyard parts or new OEM castings. no accesory holes.


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 heads, all These happen to be casting #3917291 with 63. SMALL CHAMBER PRODUCTION "ON CAR" CYLINDER HEADS - By Racerguy. K 17 7 & K 24 7. 94" intake and 1. Date the part was cast not assembled or machined.


These particular heads have new Engine Pro screw-in stu 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 just borrowed the page from him. Set up for hydralic cam. On the top end, correct 3917291 heads were installed; they’re correct for either a 302 or a 327 with 2. By doing that you could end this never-ending debate about mystery GM SB heads! Please do that and try to be accurate.


Hardened Stainless steel seats for unleaded fuel. hey thanks for the reply(s). I actually went through several lists and made some corrections before making this list. Without adequate airflow, the engine will never make power. 94 : 1.


3917291 heads

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