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Max hp with camel hump heads of Technology

9.25:1, 600 brawler carb, performer intake, TF CH heads, STOCK 327/35.

If original stle is what your looking for stick with the camel hump heads. If not bolt on aset of Vortecs and a vortec intake and be done.With your cam and Vortec heads torque and horsepower into the lower 400’s is possible with sufficient attention to the details. Even ported camel humps on an otherwise identically built engine cannot get those kind of numbers.Vortecs are superior to the old camel hump heads. Hands down they will outflow a set of "small valve" camel humps because a stock Vortec head will outflow even some 2.02/1.6 camel hump heads. But you'll need the following: Vortec specific intake. Vortec specific intake gaskets.Heads have screw in studs/guide plates, are machined for .495 pos-lock seals and have 1.450 spring pockets. Will replace .040x1.55 gasket with .039x4.166 gasket. Should be 9:1 but with .065 quench. New Manley Street Flow 11/32 2.02/1.60 valves, positive lock seals, comp 26986 beehives with 10 degree PAC retainers/locks.Actually, the camel hump heads came on many 4bbl engines during the '60's as well as the rare fuel injected 'Vette engines. And the same 461 / 462 castings having the more common 1.94" / 1.50" valves could be more easily found in wrecking yards than could those having the rarer and much more sought after 2.02" / 1.60" valves.....Thanks guys, Right now, i'm thinking of getting a set and not running my world 72cc heads for two reasons first they wont look right, and second, ive decided i want to up my compression to around 11. I know normal camel humps are around 64cc's that is gunna put me around 11.8, and that i think for a street rig is gunna be a little too much.My guess is that the camel hump heads are probably good for 15-20 hp on a street engine just from the compression ratio increase. Flow will be close to the same. Vortec heads (or 461X camel hump heads) would be worth another 15-20 hp on a street engine.item 8 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7 Chevy 3917291 Heads 302 327 350 Double Hump Pair Camel Hump SBC Heads 291 D 10 7. $700.00. Free shipping. Best Selling in Cylinder Heads. Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Cylinder Heads ...N. nicke Discussion starter. 135 posts · Joined 2011. #1 · Jun 21, 2012. I have a 65' 327 with this setup and would like a few recommendations on heads for an upgrade. 327 bored .40 over. Currently, 461 Camel hump heads with 1.94/1.60 valves.400 true hp is not difficult,needs precision assembley and machine work,clean heads,standard performer rpm/750 cfm/1 5/8 long tube headers,decent and quality cam. entry level after market heads are a g note or a little less. vortec heads can support 400 hp with machined clearance for a .450 plus lift cam and exhaust porting.Its going to take more than a set of camel hump heads and a 327 to make that kind of "streetable" power. At that power level I would do at least a 3.48" stroke crank, a good roller cam and a good set of heads.You can easily get 400 hp from a well thought out 331. Paul Wright built us a 331" motor for our road racing Nova, and with an rpm limit of 6200 rpm it put 335 hp to the rear wheels, through the mufflers using a 2-bbl carb. 350 block, 307 crank, PM rods, flat top pistons, iron heads, VicJr manifold and a street roller cam with 225° duration.Making the Double Hump heads run 7,000 rpm for 3,000 lapsThe 291s aren't like the earlier 461s they made the chamber work better with more lift. With a 327 and 3.08s and an M20 lift is not your problem unless you change the rear axle ratio it will be a stone no matter what you do. You could use a 3.42 low ST10 they work well with 3.08s. Like.OK, I'm confused. Concerning the camel hump heads on 327 engines, which ones had 2.02 valves and which had the 1.94's. I'm getting conflicting opinion...736 posts · Joined 2010. #2 · Apr 25, 2011. depends on your hp goals, the 194 will be good stock till about 3-350hp. the 202 heads will be slightly better but if you just look at the valve size change by itself it's worth like 5hp maybe. now, i don't know if the runners are that much bigger or not in the 202 heads, but i'd stay with the 194 ...The double hump heads didn't have accessory holes until 1968. Any of them '67 and older have no holes. The double hump heads made more power than my "hecho en mexico" heads. I don't see a problem with them, but big money can be spent on them. I only have about $100 in my heads, not including the $275 that I paid for the motor.Yes and no. "202" refers to the intake valve diameter of 2.02". Fords and Chevys usually don't have an intake problem... they usually have an exhaust problem. If you've got a set of stock cast iron heads and had them fitted with 2.02" valves and think you're going to get more horsepower, you're just kidding yourself unless you did some more ...Fel Pro Printoseal intake gaskets and Perma Torque VBlue Stripe head gasket good for 13 #. 234*/244*, .488/.510 cam lost 10 HP at 2500, even at 4000 and plus 80 at 5500 over stock. With big valve lightly ported Chevy heads and cam, HP up 90. 31* to 38* ignition only showed a 1% difference. Some sort of boost retard required.Received 528 Likes on 377 Posts. Yes, I have tapped a hole into the camel hump heads for mounting purposes. 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).UPGRADED SBC Camel Hump Cylinder Heads 461 STAINLESS VALVES HARDENED SEATS. New (Other) C $1,640.33. or Best Offer. +C $376.58 shipping. from United States. Sponsored. streetrodshq (10) 100%. OEM GM Solid Lifter Camshaft & Lifters 3736097 1957-1963 Small Block Chevy HIPO.first;thats a lot of compression for cast iron heads. second;those heads can flow as little as 210 cfm and ported 230-250 plus. your first task is to take the heads and put them on a flow bench. get intake and exhaust numbers for .400/.500/.600 lift. and measure the CCs of the combustion chamber.The 283 powerpack heads are around 60 cc , the 350 heads are probably 72-76 cc and the 327 camel hump heads are 62-64 cc. Regards, Robert . ... The "539" 1957 powerpack heads and the 1957 283 hp F.I. heads are the same head and the same casting number and same flow rate. The "997" 270 hp heads are the same flow rate too, but have a touch more ...HP: Get the latest Helmerich & Payne stock price and detailed information including HP news, historical charts and realtime prices. Indices Commodities Currencies Stocks3973370 heads were used on 69/70 Chev or pontiac 350/300HP engines, at least in Canada they were. Basically same head as the 186. They were only availiable with the 1.94/1.50 valve . 2002 Jerry Bickle Cavalier, 446" Small Block, Brodix Canted Valve, lenco 5 speed, 7.54 @ 180. mph,1.06 60', 2235 lbs for 2014. GM Canada Docs, Highly Optioned 69 ...OEM GM 3890462 Cylinder Heads Small Block Chevy Camel Hump 1966- 1967 Hi Perf. super-novass (16014) 100% positive; Seller's other items Seller's other ... The information in this manual has cleared up years of confusion and speculation on the 396 425 hp motor. A lot of gurus online are wrong! NOS Bill Thomas Performance Handbook Big Block Chevy ...the all out max-ported 461 X heads had headbolt hole tubes in center pairs of intake runners , the center wall was straight to tube, only about .060 thick ... 8.10's to 8.20's ET at 165 to 166 mph , ..didn't have a dyno then, but it figures to be right at 590-610 Hp with 410 lbs. Torque , 48 cc chambers , 13.6:1 CR 5.86 gears , shift at 9000 rpms736 posts · Joined 2010. #2 · Apr 25, 2011. depends on your hp goals, the 194 will be good stock till about 3-350hp. the 202 heads will be slightly better but if you just look at the valve size change by itself it's worth like 5hp maybe. now, i don't know if the runners are that much bigger or not in the 202 heads, but i'd stay with the 194 ...Camel back, double hump,fuelie heads, are all names for 461,462 & 291 head castings, and I think they WILL work on a 305.Cylinder Head "Bare". This cylinder head is a service head less valves and springs which is used on the 350 ci (300 hp) engine. This head is an excellent replacement for street use. It has 1.94" intake valves, 1.50" exhaust valves with 64cc chambers. They require late model center hold down valve covers.Feb 28, 2020 · Chevy SBC V8 Bare Aluminum Camel Double Hump 461 Cylinder Head - https://www.speedwaymotors.com/Chevy-... Chevy SBC Assembled Aluminum Camel Double Hump 461 Cylinder ...So the guy pulled a head off a smog 350 Probably 76-78 cc head on 1 side. powerpak head 64cc? on the other. 13/16 plugs on the powerpak side. 5/8 plug on the other. And it still ran! and passed emissions! jim. Jim. 70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi.Jan 5, 2017 · The Z-25 cam is a tight lash cam so you can use a lash loop successfully to match your engine needs. The "EDM" lifters should be used on any of the cams mentioned,Thank you Richard for reminding us. Note: our shop used this same cam in a 327 4 speed car with both 3.36:1 gears and later with 4.11 gears.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. To keep with the vintage design, the heads are available with 69' later …Aug 23, 2006 · I had my 67 on a dyno on Monday. It has a .030” over 327, flat top pistons, “462” double hump heads with 1.94/1.50 valves, Comp Cams XE262 with 218/224 duration @.050 and .462/.469 lift, 670 Holley on a Performer RPM intake, stock exhaust manifolds with a transverse muffler, 4 speed and an 8.5 ten bolt with 3.42 gears.-186 camel hump heads, 2.02/1.65 port matched, polished and bowl blended-roller rocker-victor jr intake, port matched as well ... know that goes against the "ebay pos turbos" but the proof is there. check out this guys build thread it is a thousand hp set up and he has quite a few videos in the thread of people with ebay turbos ...The most recognized end casting identifier of the SBC heads is the "fuelie", "double hump", or "camel hump". It got the name fuelie from the fact that it was used on optional high performance fuel injected SBC engines, mainly installed in the Corvette. ... chamber same as 1957 270 HP Corvette. E, F-Large "camel hump" c/n 291, 461, 461X, 462 ...first;thats a lot of compression for cast iron heads. second;those heads can flow as little as 210 cfm and ported 230-250 plus. your first task is to take the heads and put them on a flow bench. get intake and exhaust numbers for .400/.500/.600 lift. and measure the CCs of the combustion chamber.3927185 Heads - Hmmm. Jump to Latest Follow. 15K views 16 replies 8 participants last post by ka_jd7and1 Jun 24, 2010. Harry Canyon Discussion starter. 2105 posts · Joined 2008. #1 · Jun 2, 2010. I pulled the valve covers on the mystery SBC turd in my '66 chevy and found these. Ran the numbers and it comes back as a 69 1.72/1.5 70cc 200hp head.Re: 3782461 heads vs. other double humps. by metriccar » Fri Jan 13, 2012 11:10 pm. Class rules. But you can see what I'm talking about with these two pictures. The first one is a 461 and the other is all the rest of the double humps. You can see the 461 has a spark plug hole lower, closer to the piston and there is no tapering off below the ...The Rochester mechanical fuel injection option was first offered on the 283 cubic inch rated at 283 horsepower. This was the first engine to offer one horsepower per cubic inch. This is why the double hump, or camel hump heads are called fuelie heads. Today we expect 1.5 horsepower per cubic inch out of the small block; so we have become ...The factory 461 iron casting SBC 327 heads, also referred to as “double-hump” heads, were the best that GM offered at the time. Though most of these heads had 1.94“/1.5” valves, the L76 327 and L84 327 versions were opened up with 2.02”/1.60” valves for better flow.Essnetially I have a very well rebuilt 1970 engine with the Camel Hump Heads. It has been tuned by Lars and is running really strong. ... Best so far with the baseline config is 226 HP and 290 FT/LBs of Torque at the rear wheel on a Dyno. Thats actually really respectable for a stock 1970 car.Find Parts and Accessories double hump aluminum heads KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: REWARDS. ... Cylinder Head, DHC™ 200, CNC Street Ported, Bare, With Accessory Bolt Holes, Small Chevy, Each. Part Number: TFS-3021B006-C00. Not Yet Reviewed.Re: Max lift for 462 Camel Hump Heads 11-28-05 07:33 AM - Post# 824747 In response to slimlynn1 you REALLY should measure to be sure!as the springs coil bind,or retainers or v-guides may be slightly differant than average or they may even have been changed at some point, after all those heads are not exactly new and you or the …There is a company out there that makes aluminum heads with the old double hump casting on the ends. Might be worth looking into. 1969 x-77 Z/28 orange/ white stripes, named by my daughter "Clementine ", M-22 close ratio, 4:10 12 bolt, CE 302. Hugger orange with white stripes.Chevrolet Small Block Camel Hump Heads (Small Camel Humps) In this video we get a tad bit confused over the Casting Numbers Watch me struggle to figure this ...69-70 Camel hump Heads 302. ... You would be extremely lucky, after some 35 years, to find a set Original 2.02/1.6 camel humps with out the valves buried. Other then the L79, I believe, most 327's came with the 1.94/1.5 valves. Z15CAM - There was a Viper in my Rear View :waving: This was my 70 1/2 Z28The car was gutless with the stock 283, and I expect it to be somewhat less gutless after the rebuild. Heads #1 - Stock rebuilt 1967 283 Powerpack heads with a good valve job and upgraded springs, +/- 60 CC chambers. Heads #2 - TFS Camel hump heads 2.02/1.60 valves, 175 CC runner, 60 CC chambers.Product Summary. 283, 302, 307, 327, 350, 383, Bare Cylinder Head Style. Features 180cc intake runner, 62cc exhaust runner, valve seats machined for 2.02" intake/1.60" exhaust valves, 1.560" max spring pocket diameter. Cast from premium quality aluminum that shaves 40 lbs. off the nose of your car vs. heavy iron heads.Product Summary. 283, 302, 307, 327, 350, 383, Bare Cylinder Head Style. Features 180cc intake runner, 62cc exhaust runner, valve seats machined for 2.02" intake/1.60" exhaust valves, 1.560" max spring pocket diameter. Cast from premium quality aluminum that shaves 40 lbs. off the nose of your car vs. heavy iron heads.N. nicke Discussion starter. 135 posts · Joined 2011. #1 · Jun 21, 2012. I have a 65' 327 with this setup and would like a few recommendations on heads for an upgrade. 327 bored .40 over. Currently, 461 Camel hump heads with 1.94/1.60 valves. Jul 11, 2006 · 69 is large journal. the camel hump 1.94 )camel hump hp small block heads. one last thing they wThese heads were used on many mid/High HP small blocks f

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The camel humps could be okay, it depe.

Im trying to find out if these would be good heads for a 350 buildup. the 461 heads are very nice heads, but the vortec is a little better performance wise. comp. varies depending upon head gasket used and how far down in the hole your pistons are, and if flat top or domed or dished. sam-missle. Like. D.the HP is much better for the same price (IMO if you can go with an even smaller port size to improve the low end more and still have a good top end) With Vortec heads i get: 366HP at 5500rpms. 386TQ at 4000rpms/ 355TQ at 2000rpms. Actually the camel humps are very good on the low end, but IMO weak after 3500rpms.A 750-780 carb always works well in this type of build. Would run well, reliable and won't beat itself to death but would be all done close to 6500rpm with those heads. Kind of a snotty little 350-355 sbc for fun. Probably be around 425hp~ with decent torque down low.Robot jockeys are replacing human riders on camel races in the Middle East. Learn more about camel racing in this HowStuffWorks Now article. Advertisement Robots are already elimin...191,192,461,461x,462 All of these heads are early and have no accessory mounting holes for the '69 and up "long w/p" alternator mount. 186, 187 and 414 These are later model and have the accessory holes. The 414's were the 70 LT1, 370HP head! The "Camel" or "double" hump refers to the casting mark on the front and back of the head.Jan 9, 2008 · Im trying to find out if these would be good heads for a 350 buildup. the 461 heads are very nice heads, but the vortec is a little better performance wise. comp. varies depending upon head gasket used and how far down in the hole your pistons are, and if flat top or domed or dished. sam-missle. Like. D.The small block Chevy was designed in 1953, and put into production in 1955. It had a rectangular identification cast into the head. In 1956 the horsepower jumped 19% with the introduction of a new 1.72/1.50-inch valve head called a "Power Pack" which had a rectangle with a triangle on top of it. In 1957 the top horse power motor jumped …Nov 7, 2019 · Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! In this video, Joe and Wyatt discuss the features that bring the vaunted camel hump heads into the 21st Century.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. To keep with the vintage design, the heads are available with 69' later …In 1961 Chev offered the 461/462 camel double hump heads on the 283 as found in the the 315HP Corvette. These had the 1.92" intake valves and I believe some machining was required for valve to cylinder clearance. ... Yes they would make a difference in Torque an HP.. Not for the better Those heads are much better suited to bigger cubes. The ...041s ARE double-humps. Some of the casting numbers you see the most are 461 (no bolt holes), 462, 492, 186, 041, 041X, 291 (no bolt holes), 292 (over-the-counter GM race head) Those used to be the heads we all ran, for years and years, back before CNC casting made possible the whole aftermarket head industry as we know it.492 castings came on high power small blocks, but these were straight plug heads. The 492 angle plugs as in the given pictures were avalible over the counter only, they never came installed on a factory engine. True and good point. I was generally speaking HP numbers for the heads pictured for an estimated base. Like.Would be seen at the front of the engine where the brackets bolt on. Trick Flow: Aluminum, Angled plugs, plain machined front with accessory holes. Camel Hump: Iron, straight plugs, cast finish on front often have no accessory holes and of course have the double hump cast into them. In addition, you can pull the valve covers and get the casting ...The double hump heads didn't have accessory holes until 1968. Any of them '67 and older have no holes. The double hump heads made more power than my "hecho en mexico" heads. I don't see a problem with them, but big money can be spent on them. I only have about $100 in my heads, not including the $275 that I paid for the motor.How to reliably mount the alternator on a small block Chevy without threaded holes in the cylinder head.3973370 heads were used on 69/70 Chev or pontiac 350/300HP engines, at least in Canada they were. Basically same head as the 186. They were only availiable with the 1.94/1.50 valve . 2002 Jerry Bickle Cavalier, 446" Small Block, Brodix Canted Valve, lenco 5 speed, 7.54 @ 180. mph,1.06 60', 2235 lbs for 2014. GM Canada Docs, Highly …Should I dump the old camel hump heads 383 stroker. To start with I bought this car with this motor already in it. Have a 68 camaro with a 383 stroker, 4 speed, and 3.73 gears. 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 2.02 heads that are on it …Nov 7, 2019 · Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! In this video, Joe and Wyatt discuss the features that bring the vaunted camel hump heads into the 21st Century.Camel hump heads can be modified to work fine and give good power. My mild 331 CI, 9.5:1 CR puts down 300+ hp to the rear wheels (measured at 293 hp on the chassis dyno before further modification and a Lars tune-up).Heads #2 - TFS Camel hump heads 2.02/1.60 valves, 175 CC runner, 60 CC chambers Cam 1 Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chevy Small Block, 207/213 @ .050, ... As for a cam keep the lift around .450 to .475 and the duration in the 230 ish range max. You will need the cam to be on a 106 LCA or tighter to make any torque …Re: 462 double hump hp capability. by barnym17 » Tue Apr 17, 2012 10:57 am. They did have a reason for the small stroke, scca rules and a 305 cid limit.They used the 4 inch bore because it allowed better breathing than the 283 bore thus the 3 inch stroke 283 crank was used to squeak in under the cid limit. Dave Koehler.With standard unported heads, I would expect at best a genuine 340 to 370 hp. I am just finishing of a similar combo which has been run though a "Dynomation Engine Simulation" @ 412 Hp. Ported 462 heads. 10.3:1 comp. RPM Air Gap with 750 Street HP. 236/242 soild cam with 1.6 in and 1.5 ex rockers.the HP is much better for the same price (IMO if you can go with an even smaller port size to improve the low end more and still have a good top end) With Vortec heads i get: 366HP at 5500rpms. 386TQ at 4000rpms/ 355TQ at 2000rpms. Actually the camel humps are very good on the low end, but IMO weak after 3500rpms.Flow characteristics, on double hump heads are very limited, even with drastic porting they wont flow much past .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.Most people grossly over estimate HP numbers. They think you can take a hydraulic camshaft and with a holley 650 carburetor and a set of headers and make 400 Hp. It's just not that easy. I always thought my 355 made close to 425-450 and I think it will make more than yours with steel heads. I'd guess 415-425.Original Camel Hump Heads. I just finished up machining two sets of heads for a customer replicating camel hump heads for a Camaro restoration. He wanted high performance heads that looked just like the originals. I machined the logos off and then machined the inset by hand around a 3/8” thick steel guide.The first number is a "3" so the head number is 3782461 with a date code of April 10, 1965. They are a camel hump head for a 327 sbc. They came on 64-66 Chevies. They have 62 cc chambers but the valve size is not specified in Morton's. They are probably 1.94/1.72 since the 3782461x was the head with the larger 2.02 intake valves. JimA lot has changed in the performance cylinde1962 Vette with its original 327/300 hp, .040&q

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Re: Chevy 186 head flow questions. by steve25 » Wed May 19, 2010 4:43 pm. If they started out as heads fitted with 1.94" intakes and the chambers where not unshrouded for the 2.02" valves they flow about 210 to 215 cfm@28". 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.Aluminum SBC Cylinder Heads. A lot has changed in the performance cylinder head market since my last head story in EB in 2010. First of all, 600hp is the new 500hp, and if a power adder is involved, you’d better be packing 800hp to have any bragging rights at all. By Len Emanuelson. Published: May 4, 2017.I had my 67 on a dyno on Monday. It has a .030” over 327, flat top pistons, “462” double hump heads with 1.94/1.50 valves, Comp Cams XE262 with 218/224 duration @.050 and .462/.469 lift, 670 Holley on a Performer RPM intake, stock exhaust manifolds with a transverse muffler, 4 speed and an 8.5 ten bolt with 3.42 gears.3708 posts · Joined 2011. #6 · Aug 27, 2012 (Edited) Jeff, In the book by Dave Emanuel: The 3795896 (the Power Pack) heads were released back in the late 50's. They had 1.72/1.50 intake/exhaust valves, 137cc intake runner volume and 59cc combustion chambers. IMO, the 461X heads valves are too big for the 283 bore.The "Camel" or "double" hump refers to the casting mark on the front and back of the head. It's very distinctive and looks like two humps on a camel's back! (Or your favorite girlfriend lying on her back!) For more casting numbers go here: http://www.mortec.com/castnum.htm. You'll have a hard time finding any of these heads …These heads have double hump casting marks." "Original hi-perf or "fuelie" heads; chamber sizes are 62-64cc; both 1.94/1.50 & 2.02/1.60 valve versions available; 327's through '68; have temp sender hole." "Cylinder heads used on the 302s can be a bit confusing. In 1967, two different cylinder head castings were used on the 302, 3917291 ...Flummox your coworkers with an "Insert Coin" message on the office printer using the HP Printer Job Language (HPPJL) command set. The Hackszine blog describes how to customize the ...I was going to run it in my 57 with ported aluminum speedway motors camel hump heads, modified to take a staggered valve cover, and a heavily worked factory intake.There were many castings that ended in 462, but had different overall numbers. For example, in the mid sixtys, there were heads with the same casting numbers ( ending in 462) but had either 1.94 intakes or 2.02 depending on application. Also I know from experience that many 1.94 heads were opened to 2.02. joel, Jan 25, 2020.Shop Chevy 350 Heads and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. Chevy 350 Heads in-stock with same-day shipping.1970 Z28 and Corvette also used this "186" head and this was the first year for screw in studs and guide plates. "186" castings/cores sell for anywhere from approx. $250 to $450 a set on Ebay, and some of the "mental" core suppliers want ridiculous amounts of money for them.Camel hump 1.94/1.50 heads hogged out to 2.02/1.60, pocket ported, port matched, pump-friendly hardened seats, 3-angle valve job Comp Cams 1.52:1 roller-tip rockers Crane Cam Vintage Muscle 327/350 hp cam, 222 degrees @ 0.05, 0.447" lift (with 1.50 rockers) Doug Thorley headers, dechromed and ceramic-coatedI'm sure you will get a more technical response for this but "camel hump" heads are named primaraly for the embossed shape in front of the head where your accessories. would bolt up too. Back in the day they were sought after hi -po hp. heads that were. closed chambered large valve small block heads.Robot jockeys are replacing human riders on camel races in the Middle East. Learn more about camel racing in this HowStuffWorks Now article. Advertisement Robots are already elimin...The REALLY sought after heads for 57 283s are the heads for the 2x4 carb engines. The VERY FIRST "fuelie" heads with the double hump symbols on the ends of the head, was 1961. It was a Corvette ONLY engine, 315hp/283 with FI. The valve size in those heads was 1.94/1.5, which remained through 63 on the "fuleie" heads.The 210 horse came with small valve heads, however after 40 years it could have anything on it. Take the valve cover off and check the casting numbers. Mark. 68 327 4-speed 3.42 posi and a sunroof. best so far... 13.25 at 106mph. 78 Firebird 350/T350 3.23 posi. 65 Mustang convert. 6 cyl. 3-speed. 66 Mustang coupe 6 cyl. auto.This video shows you how to identify camel hump heads.Comments welcome.In the last year, 346 people have died in two 737 Max aircraft crashes. Here's what it could mean for how planes are built, and who builds them. In the last year, 346 people have d...The engine is a stock 350 4 bolt main out of a 68 camaro. I am adding 461 double hump heads a edelbrock performer rpm cam (234/244 dur @ .050, .488/.510 lift), edelbrock performer rpm air gap intake w/edelbrock 750 carb. also I have an msd 6al box on a stock distributer w/a points conversion kit in it.Heads have screw in studs/guide plates, are machined for .495 pos-lock seals and have 1.450 spring pockets. Will replace .040x1.55 gasket with .039x4.166 gasket. Should be 9:1 but with .065 quench. New Manley Street Flow 11/32 2.02/1.60 valves, positive lock seals, comp 26986 beehives with 10 degree PAC retainers/locks.when do the camelhumps run out of flow efficiency, i'm getting my camelhumps opened up to 2.02/1.6 and need to make a decision on a camshaft. I originally was gonna go with the Comp256 with .447"/.454" but that maxs out at 5000rpm and i wanna use the high rev potential of the 327 to 6000rpm. Right now i have 3.08 gears and i'll be putting in an m-20.Jul 6, 2018 · Good article Jeff! Back in the early 90s I put a set of “Double Hump” heads on the 283/292 in my son’s ’66 Nova not thinking about the loss of compression. I also used the 204/214 cam in it and an LT-1 Chevy intake. There was a noticeable lack of torque, but it ran well on the top end. It was still good for 14 flat in the quarter mile.Chevy SBC Assembled Aluminum Camel Double Hump 461 Cylinder Head made by Speedway Motors, for as low as $609.99. [email protected]. 9732 posts · Joined 2002. #