186 camel hump heads for sale

The chamber size of these heads is about 64CCs. 50 valves). Up for sale is a professionally rebuilt pair of perfect date matched #186 Small Block Chevy 2. julia4651 (62) 100%. Keep in mind that most 461 double-hump heads have 1. 58 shipping. 99 shipping. 3917293 Pair SBC 1967 307/327 Chevy Cylinder Heads 1. 5-inch valves or they might have been made with 2. Deviations would result from machining/resurfacing which would reduce volume, valve sinking, which would increase volume, etc. 50” valves, only the select few used on L79, L76, and L84 engines had the larger valves. Out of the box double hump cast heads produced from 25 to 40 horsepower less, depending on valve size. The "292" head was the best SBC head you could get until the mid 80s. ---- Used. $75. 186 and all other camel hump heads are 64cc head. . Big block springs and retainers, screw in studs, push rod guide plates. 95 for 24 months with. For all practical purposes and interpretations the camel hump/fuelie head is a 64 cc head. 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 These are garage sale priced because they are blemished heads from the factory. 700R4 TPI transmission Aug 18, 2011 · 70lt1z28. Stock “double hump” heads flow 202 cfm intake and 141 cfm on the exhaust. Day 2 is Life. 60. 94"/1. They are also 64 CC instead of 76 CC. This is kind of late in the 67 model year production, so Get the best deals for sbc heads camel hump at eBay. The heads are dated B179 & B199 (February 17, 1969 & February 19, 1969). The 292 was the 327/350 head. Seller's other items. Buy It Now. Mar 16, 2002 · C3 Tech/Performance - 186 Double Hump Heads vs. 2002 Jerry Bickle Cavalier, 446" Small Block, Brodix Canted Valve, lenco 5 speed, 7. "Double-hump" heads were found on many of its high-performance engines in the 1960s and early 1970s. Up for sale is a professionally rebuilt pair of #186 Small Block Chevy 2. 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 We offer Chevy 350 heads from Speedway Motors, Flo-Tek, Dart, World Products, Edelbrock, Brodix, Blueprint Engines and Chevrolet Performance. Aug 30, 2009 · It's two half-ovals connected by a straight bar-most easily described as "two humps. 60" exhaust valves, whereas most 461 heads came with a 1. The 492, 292, and 186 heads have a slightly different looking camel hump. 12 watchers. stock Q-jet - I have re-built my '74 L48 350 and am in the final stages of reassembly back into the car. With 68 327 Chevy Small Block Cylinder Heads for sale, and options to fit your needs including custom and direct fit Cylinder Heads for your application. 49. 50" exhaust valve. 54 @ 180. 00 eBay determines this price through a machine learned model of the product's sale prices within the last 90 days. #10 · Oct 22, 2009 (Edited) The 67 and 68 302 used the 291 head as did the 327 and 350 and came with either the 2. ProMaxx Performance 2151 Cast Iron Small Block Chevy Vortec Cylinder Heads. $699. Casting number is 3927186. This means it has the 2. The venerable small-block Chevy V8 engine has seen an amazing evolution in the past 60 years. streetrodshq (10) 100%. 02X1. Aug 12, 2017 · How Fuelie Cylinder Heads Launched SBC Performance. 00. 18069 posts · Joined 2005. Jump to Latest Follow "Fuelie" heads with accessory holes: 186, 370, 041, 492 . hotrodchrome (19,515) 98. They will bump your compression 1. off the nose of your car vs. 480-inch. 50 inches. Darren. the 461x has a little bigger intake port (170 v/s 160) & the 041x has a 68cc chamber with a 170cc runner. 015 to 0. This video shows you how to identify camel hump heads. These heads were used on 69-70 SBC engines with 290HP and up. Mar 8, 2011 · This is a matched pair of 3927186 Camel Hump cylinder heads for Small Block Chevy engines. Oct 19, 2009 · steve70malibu. ARP Head Stud Kit for Ford 2008 2009 2010 Powerstroke 6. Aug 6, 2017 · I have one driver side head for sale. They were only availiable with the 1. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Dart 127121 SHP 180CC Assembled Engine Cylinder Head-Small Block Chevy. In 1967, two different cylinder head castings were used on the 302, 3917291 DHC 175 heads are made from premium grade A356-T61 aluminum and have the exterior styling and straight spark plug holes that deliver the nostalgic appearance customers want. Old wolf, Dec 24, 2014. Sep 17, 2012 · Some of the 186 heads came outfitted with 2. Both versions were the exact same casting with the differences only being in machining and valve sizes. 50 valve . 72/1. 02 1. " "Cylinder heads used on the 302s can be a bit confusing. 5 76cc heads, except at . The Z28 and Corvette LT1 had 2. They were manufactured with larger intake and exhaust port volumes and valves for the period, and engines equipped with them had output SBC Double Hump Camelback Head 1966 Corvette Chevy 461 Casting 1. Small Block Chevy Cylinder Head Aluminum Bare Angle Plugs SB SBC 327 350 383. 500 lift. $800. I found a set of camel hump heads untouched bare cylinder heads casting #3927186 for $5 My question is are these a good set of heads to Jan 25, 2020 · There were many castings that ended in 462, but had different overall numbers. 60 exhaust valves. The heads are dated C79 & F39 (March 7, 1969 & June 3, 1969). 4%. $625. They have larger intake runners and have accessory holes. UPGRADED SBC Camel Hump Cylinder Heads 461 STAINLESS VALVES HARDENED SEATS. New Listing SBC Double Hump Camelback Head 1966 Corvette Chevy 461 Casting 1. They are still used in a variety of applications. super-novass. mph,1. $28. Early production 70 Z28,s/Corvettes had "186" heads before the "492" was used. They will also have a julian date code below the casting numbers (under valve covers) and should be matched to your motor if thats what you are trying to do. +C $376. 6 valves & the right valve job & a little bowl blending you should be able to get 400-450 horespower out of any of them. They had 2. The best thing ive found aftermarket cams and springs are good for is wiping out cam lobes and circulating ground up metal through the engine. joel, Jan 25, 2020. 3927186 (DZ 302 Heads)The other 041 numbers you entered are for other small block applications and and Aug 12, 2011 · Camel Hump Heads. 94”/1. The combustion chamber designs are also changed/improved. 00 Trending at $800. (16014) 100% positive. ARP 134-3601 Head Bolt Kit - Chevrolet Small Block. Free shipping. The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. $399. Opens in a new window or tab. 5in exhaust valves or 2. 94 62cc. (1) Cylinder Head Style: Assembled. 186 heads dated 1970. I hope this helps. Date code is Aug 22, 1968 which puts it in the 1969 model year. They were upgraded to a screw in studs with guide plates. Not even W/Products seems to have numbers on their 1. Get the best deals for 3927186 Heads at eBay. These heads look to be dated L169 and L189 which is December 16th and 18th, 1969. Colvin lists that one as having the 3947041 heads. 06 60', 2235 lbs for 2014. The 492 was only offered as an over the counter/warranty head, never came on a car but they probably have the acc bolt holes too. $329. Chevy SBC V8 Bare Aluminum Camel Double Hump 461 Cylinder Head (2) Cylinder Head Style: Bare. Find many great new & used options and get the best deals for Camel+Hump+Heads+Casting+492+%26+292 at the best online prices at eBay! Free shipping for many products! Jun 27, 2010 · 34 posts · Joined 2006. General Motors identifies its small-block Chevy cylinder heads with both casting numbers and casting marks. 5:1 to 9. If its not what you want you can always change the heads and cam to something else. Just FYI, the DZ engine is 69 Z28 only, so would not be found in a 67. However, even with a 4" wide chamber and large valves, these heads will still fit on a . "492" – 3991492. 60 stainless exhaust valves. Don't ask me what the bracket came off of, we didn't know at the time. 020 over), and changed the heads to 186's with 2. Heads #2 - TFS Camel hump heads 2. These were pulled off a running motor a few years back. Find many great new & used options and get the best deals for (3927186) Chevrolet Small Block Double Hump Heads at the best online prices at eBay! Free shipping for many products! Hump Heads 3927186 186 D-27-0. +$395. #19 · Dec 6, 2014. Jan 7, 2013 · (1) 1 product ratings - OEM GM 3890462 Cylinder Heads Small Block Chevy Camel Hump 1966- 1967 Hi Perf $695. $186. 461 SBC double hump head features improved port/chamber shape for better performance with the 3-angle machined valve job that promotes better flow, especially at low-to-mid lifts. All the "double hump" heads on 69-70 production cars had accessory bolt holes. eat a beaver, save a tree. Pre-Owned. Sep 6, 2021 · With a 76cc chamber head on a 350 Chevy, your compression ratio will be around 8. 4. Apr 9, 2005 · Yes, I have tapped a hole into the camel hump heads for mounting purposes. Find many great new & used options and get the best deals for SBC 3927186 186 1969 Camel Back Camel Hump 300hp or 350hp Heads at the best online prices at eBay! Free shipping for many products! The “double hump” or “fuelie” heads have been around since the 1960’s. There is one confirmed instance of a car receiving a "186" and a "041" head in an unusual case of head castings being interchanged between the engine plants. 02 depending on application. This includes the DZ 302, LT-1, and 350/350HP engines. 3934 posts · Joined 2006. Chevrolet 283 302 327 350 Cylinder Head Cast#3782461 Camel Double Hump Date F105. All threads are good and serviceable. A double hump casting symbol was used on the end of the head, but the size of the symbol was reduced in height. 1968 Street/Strip Camaro 350 w/PG. 02. I asked about installing hardened seats at the exhaust valve and he said not to waste my money. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Dec 6, 2023 · The 3927186 head was used for the Flint-built L48 and Z28 applications. If you use these heads in place of a camel hump head it will lower the compression due to these have a larger combustion Nov 27, 2011 · pair of 186 double hump heads I have a pair of 186 double (or camel) hump heads. Aug 11, 2023 · The original heads used on the L79 are the same as the L76 and L84, the famed “Camel Hump” 461 castings with 2. -----69 Camaro Z28 "clone" - 327 AT "461" camel back heads, edelbrock, hooker, ultradyne, TRW etc. •Stock out-of-the-box Vortec heads have approx. $250. 94" intake and 1. (East Brunswick, NJ) Chevy camel hump heads. Feb 21, 2011 · Who has achieved the most flywheel horsepower and torque using a 383 stroked 350 and double hump heads? Please include any relative specs such as compression ratio, type pistons, head work, intake, carb, exhaust manifolds or headers, exact cam, roller?,degrees of timing, msd?, etc. Your list appears essentially correct with the possible exception of the 350hp/350 L46 on the Corvette. ARP 247‑4202 Head Stud Kit for 1998-18 Dodge Cummins 24v Diesel 5. Basically same head as the 186. 5:1 assuming the use of a 0. #15 · Jun 29, 2010. Free returns. 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, and is stirring up memories of great engines that were built with those Sep 6, 2005 · In 1964, when the solid lifter 327s were increased to 365hp (Holley) and 375hp (FI), the double hump heads got the 2. #12 · Dec 1, 2007. Material Type: With 31 283 Chevy Small Block Cylinder Heads for sale Sep 15, 2003 · Camel hump head performance??? Engine & Drivetrain. Feb 8, 2004 · The casting numbers and heads you want for the Z28 are the 186 numbers you mentioned. As stated, the value depends on the demand from someone who wants what you have. $530. iron heads Improved port/chamber 1969 350 Corvette Engine ( 3956618 Block 1969 Dated w/ #186 Double Hump Heads) Remanufactured. 94" intakes and the chambers where not unshrouded for the 2. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain: Camel hump head performance??? 1966 Corvette Small Block Chevy SBC 327 Hump Heads 3890462 462 D-13-6 C-10-6. 5 valves, no good!). It is the 3927186 head. 4 to 1 ratio with the head change. +$199. the F17 on the heads is likely the casting date - June 1, 1967. 450" of valve lift). I recently called a reputable machine shop in my area about having my sbc camel hump heads upgraded for unleaded fuel and to install 2. Apr 13, 2015 · Older heads needed 32-degrees and up to ensure a more complete burn. By Mike Magda August 12, 2017. As in 69 Z-28 302 and 70 Z-28 350. Not square, not triangle, but 2 humps kinda the outline shape of the stud side of a pushrod guideplate. Both are good "camel" heads if you already have them or can get them dirt cheap. dragar85 (1,817) 99. Nov 17, 2001 · Stock "186" heads with 1. These heads have double hump casting marks. Actually the 291 and 292 are identical. Opens in a new window or tab Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads Sep 23, 2006 · 3973370 heads were used on 69/70 Chev or pontiac 350/300HP engines, at least in Canada they were. $450. Dart Iron Eagle S/S SBC Cylinder Head 10024267. Sep 3, 2021 · The car was gutless with the stock 283, and I expect it to be somewhat less gutless after the rebuild. New (Other) C $1,640. With all the choices in new motors and heads these do not have the interest they once had. 02”/1. They were found on 1970 LT-1 engines. 50 & 2. 02 valves, and I think that was the only head that came that way originally of the 492-186-291-041 heads. Also, with all the other applications such as the Z28, the Corvette LT1, and the Yenko Deuce there was a mix of 3927186 and 3947041 heads used. Our Flo-Tek aluminum heads (part #7222000) are just a touch over 400 bucks each and are made from Mar 16, 2006 · So, comparing flow of the vortec vs. Even our most budget friendly heads will obliterate the factory stock camel hump heads of the 60’s. I rebuilt my 350 with 186 camel humps,flat top pistons (4vr),rpm intake and a compcam 280 cam (480/480 lift),pulls really well from low down,think it will suit your truck! Always felt it needed more on the top end though! nice lopey sound at idle,ran on pump gas no problem. GM Chevrolet 302 327 350 Camel Hump SBC Rebuilt Cylinder Heads PAIR 3917291 OEM. The S/R Heads and the S/R Torquers are exactly the same casting. Brand New. The runners have the same volumes of 161cc intake The heads on the 1976 through 1987 GM vehicles can be identified with casting number 462624 with an intake/exhaust port size of 1. " Some of these are also nicknamed "Fuelie" heads because a version appeared on fuel-injected 327-powered Chevy Comes completely assembled with no accessory bolt holes, just like the original Chevy 461 heads. Apr 15, 2006 · The 69 or 70 double humps do flow much better than the smog heads. These heads will interchange with casting number 487, 487X, 993, 882, 624, 441 and many others. with 2. 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. 283, 302, 307, 327, 350, 383, Bare Cylinder Head Style. 485"/. It has accessory mounting threaded holes front and rear. These are a matched pair dated September 18 and 19 of 1969. From the early 265/283 displacement engines to the most popular engine of any era, the 350 SBC, all the way to the modern LS platforms of today. $13,895. Sbc small block 492 turbo head camel hump dirt track circle track drag race car. 9L 6. Chevy small-block engine head casting numbers identify the model year, horsepower range, valve and chamber size and the size of the intake and exhaust ports. 461 and 462 double hump complete heads should be worth or priced at $200 a set at the very least. 94 heads were opened to 2. 02 double hump cylinder heads. techinspector1. I changed the cam to a Cleavite 2019 (mild cam with short duration), added new flat top pistons (. Are you searching for 3927186 Heads online? Locate 3927186 Heads on sale below with the biggest option of 3927186 Heads anywhere online. Also I know from experience that many 1. #1 · Jan 12, 2010. Re: Chevy 186 head flow questions. OEM GM 3782461 D295 Cylinder Heads Small Block Chevy Camel Heads 2. -Chrismike. " "Original hi-perf or “fuelie” heads; chamber sizes are 62-64cc; both 1. 1967 SS 1967 Malibu 1969 Z28 Free shipping. 9%. The 186 is one of the best closed chamber Oct 19, 2010 · The heads you have (462) came along in 66. Aug 24, 2004 · Fred, the reference to the 186 Fuelie in the link throws me for a loop. streetrodshq (6) 100%. 480 horsepower potential naturally-aspirated. 6 heads gained flow. -. 60 valves and 64cc chambers. shreves_engine_rebuilders (459) 98. •Maximum valve lift on Vortec cylinder heads is . Oct 21, 2009 · Z15CAM. 7L. 61 sold. Sponsored. Designed for 4" bore 1962-86 small block engines (302/327/350). $1,178. 96. 00 shipping. These heads may have come with 1. Nov 7, 2019 · These heads have 2. 02/1. Jul 9, 2022 · These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, & 492. I have a print out from a website that lists all sb heads and information on all of them. the 186, you will see improved flow/performance with the vortecs. 60” valves. Nov 30, 2007 · 344 posts · Joined 2006. custom_engine_supply (1,515) 100%. We stock products from the best brands on the market such as Speedway Motors, Edelbrock and RHS. These heads have been modified with screw in studs and some slight matching of the intake ports. Nov 3, 2006 · T. 02 intake/1. 88. They either had 1. Finish adding vehicle. These first "fuelie" heads were 3782461 castings and some 461s got an X added. By Bobby Kimbrough October 16, 2015. US $695. Jan 29, 2012 · Actually, 492 straight plug heads were used in late production 1970, part number 3987376, this was also the superceded part number for the discontinued "186" 1969 Z28 head. Here is a set of Double hump heads. 94 intakes or 2. Top Rated Plus. Email me your zip code for UPS freight quote. Having said that, a good porting job, gasket match to intake, and 3-angle valve job on a rebuilt set of 186's will also yield visible performance improvements Chevy camel hump heads. 02 valves, i can't recall. Nov 25, 2001 · These flow #'s were just something I found off the 'net, I don!t know how valid the data is. $799. Heads #1 - Stock rebuilt 1967 283 Powerpack heads with a good valve job and upgraded springs, +/- 60 CC chambers. Head History. Dec 23, 2017 · Based on the iconic “double-hump” or “camel-back” (fuelie) cylinder heads of the ‘60s and early ‘70s—including the famed 461 Fuelie heads—the DHC 175 castings are modern aluminum versions with straight spark-plug locations and improved 60cc combustion chambers. from United States. Sitting in my command bunker waiting for the zombi. 94/1. Heads have been ported. com. I'd love to see the two compared, so as to see at what point in lift, the 2. New (Other) $1,199. 6 valves and the 300hp/327s retained the 1. Nov 24, 2011 · Need a little help. We have a good supply of used ‘186 & ‘492 heads available with everything from “ Undercover Porting ” to CNC Sportsman Porting. New 64cc CNC 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. 7:1 with no other changes. The 1965 Chevrolet 350 Fuelie Double Hump Heads 3890462. Oct 16, 2015 · Head History – The Evolution of Factory SBC Cylinder Heads To Gen IV. Chevy 3917291 Heads 302 327 350 Double Camel Hump SBC Heads 291 small block. or Best Offer. They are supposed to be for an untouched 461 head with 1. 4 Diesel 250-4203 GLOBAL. Patterned after Trick Flow's popular DHC™ 175 as-cast heads, DHC™ 200 heads get the full CNC-ported treatment to substantially ramp up power production. 60cc CNC-profiled combustion chambers combined with a state of For instance, the camel hump symbol (also called double hump) can be found on 461, 461X, 462, and 291 casting heads. For example, in the mid sixtys, there were heads with the same casting numbers ( ending in 462) but had either 1. 6 or 1. Dec 28, 2005 · So, I call this Automotive Machine Shop in Findlay, OH and advise them that I have a set of original '69 186 casting, camel hump, closed chamber Small Block Chevy heads and I want to have hardened exhaust seats installed, the castings hot tanked, cleaned, resurfaced, intake valves 3-angle cut, and any guides needing replacement to be replaced (I may also consider some porting and gasket Jun 14, 2008 · These heads have double hump casting marks. I have ported these to 265 cfm@ 28" with the avaerage amount of rust and core shift they have after all these years of use. 94in intake valves/1. Maybe some of the 492 heads had 2. 02" intake and 1. 60 valve versions available; 327’s through ‘68; have temp sender hole. Only the valve size is changed on them. This isn't a daily driver, in fact I haven't put 1000 Mar 10, 2009 · Oct 20, 2003. the only difference between the 461 and 462 is more meat in the valve spring area on 462, which allows machining for oversize valve springsnot familiar with the 291try to find a set of 492'sangle plugs, best of the camelhumps UPGRADED SBC Camel Hump Cylinder Heads 461 STAINLESS VALVES HARDENED SEATS. 94 1. Good performance head. 06 New. 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 Dec 23, 2014 · Build your engine and use your double humps and preferred cam. 5 days ago · LT1 Chevy Heads - $250 (East Brunswick, NJ) LT1 Chevy Heads. But I also made a spacer (out of aluminum) that conformed to the head contour, and then provided a flat face for whatever I was mounting (acted like a removable boss). Jan 12, 2010 · 148 posts · Joined 2009. Time consuming to make the spacer, but worked like a charm for many years on a daily driven street vehicle. These heads are prone to crack. 1968 Camaro NHRA/IHRA SS/C 'Super Stocker' 396/Jerico. 02 stainless intake and new 1. Get the last 3 digits of the casting number and post them up for us, it'll tell alot about the head. GM Canada Docs, Highly Optioned 69 Mar 23, 2008 · the 461 has a 64cc chamber & the 462 has a 68cc chamber. None of my literature shows the 186 as a fuelie head, but only as a 69,70 302 and 350 head with 63cc combustion chambers. Jan 5, 2014 · The 492 and 186 camel hump heads DO have accessory holes. sbc 1969 small block 186 heads camel double hump heads Chevy camaro. Next comes the 492 castings, next the 461, then 186, then 041s which are not camel humps but have the same design. 02-1. +$35. Just by changing to smaller 64cc heads, the compression ratio improves from 8. by steve25 » Wed May 19, 2010 4:43 pm. 02" valves they flow about 210 to 215 cfm@28". 460-inch to . Cylinder Head Camel Hump Finish adding vehicle. Comments welcome. 60" will get you up around 206cfm/155cfm At least according to David Vizard's testing. Aluminum GM 3782461 Chevy 327 SBC Camel Back / Double Hump Cylinder Head Bare. 3,212. The heads have 64cc combustion chambers with new 2. Basically, there were two versions of the 461 and 462 double hump heads. All threads are clean. Jun 19, 2017 · Before the 292s were sold to the public, Chevy sold a "492" head over the counter with angled plugs but was otherwise the same as a "186" or similar double hump head. 041 inch thick head gasket and the piston is between 0. 94 intake/1. Remanufactured. +$90. 02 valves. . Save up to 5% when you buy more. A good three angle valve job, backcutting the valves and increasing valve size to 2. The small cross-section intake runners measure 175cc, and will flow 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. Dec 3, 2014 · 4130 posts · Joined 2011. torquemonstersofficial (1,208) 94. These heads will also interchange with other camel hump heads with casting numbers 461, 461X, 462, 291, 292, 186, 041, 370, & 492. 55 valves & possibly the smaller 1. For what you say you want to use it for, I wouldn't spend any money on getting vortecs if you HAVE 186's and the compression ratio is pump gas friendly. Material Type: Aluminum. 6-inch valves. Feb 26, 2010 · back in the early 80's my best friend had a 79 Z-28, we put a sbc with camel non accesory holed heads on his car, we found a bracket from somewhere that worked fine. OEM GM Solid Lifter Camshaft & Lifters 3736097 1957-1963 Small Block Chevy HIPO. JEGS – Selection, Value, Lifetime Support Since 1960…. 50" valves and no modifications whatsoever flow right around 180cfm/121cfm (at 25" of water and . Jan 8, 2005 · Look for the distinct double hump casting on the ends of the head. 50-inch valves. The earliest 265 and 283 small-blocks relied on an iron Power Pack head that featured 58-cc chambers and tiny 1. Year Make Model Trim Engine. 2%. These heads will also interchange with double hump heads with casting numbers 370, 461, 461X, 462, 291, 292, 186, 041, & 492. 040" over 283 engine, as well as the larger 327 Chevy. I like the 186 heads just because they have the latest factory technology (and metallurgy?) of that time and are just a little easier to find (especially with the 1. If they started out as heads fitted with 1. jegsperformance (584,527) 97. 6in valves. 99. 50 valves. 33. Finish: Natural. They still have the stock 194 valves. 5. 5 valves (the 250hp base engine got the pyramid heads with 1. (I asked a W/Products tech guy on this) 3 days ago · Find Trick Flow® DHC™ 200 Cylinder Heads for Small Block Chevrolet and get Trick Flow Makes Serious Horsepower! Build the ultimate classic-looking hi-po Chevy small block with Trick Flow® DHC™ 200 cylinder heads. 60" valves, 64CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 62CC's. 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. On the inside, 60cc CNC-profiled combustion chambers with blended bowl machining under the valves and small cross-section intake runners promote low-RPM torque increases Aug 1, 2012 · 274 posts · Joined 2010. 50 exhaust valves or 2. Small Block Chevy Performance Cylinder Heads - Casting # 186. #6 · Aug 1, 2012. They would be correct for a late September or early October Z28. According to my information, 461X was the best of all the camel hump heads but are very rare. The most OEM GM 3890462 Cylinder Heads Small Block Chevy Camel Hump 1966- 1967 Hi Perf. 50. 020 inch below the deck surface. Oct 19, 2010 · The heads you have (double hump 186 casting) should be good for around 350-400 horsepower with good valves, springs and a little massaging around the bowls and the sides of the runners. Choose Speedway Motors for the highest quality 327 Chevy Small Block Cylinder Heads online. 6%. We need more information about your vehicle to confirm fit. Trending at $592. Contact seller. 60 valves, 175 CC runner, 60 CC chambers. I don’t see any noticeable damage cracks or repairs on these heads. #2 · Nov 3, 2006. +$125. (85) $87. 02"/1. 60 valve size and screw in studs. It also is alluded to have either 1. A 9:1 compression ratio changes to a 10. The selection list is basically rather thin for today’s performance engines. fq bp ye am wu yp lx rm cd an