Camel hump heads flow numbers. Pontiac 15 degree heads, aluminum, 224cc ports.
Camel hump heads flow numbers. how do i find out for sure, short of pulling them apart? there was a plate under the casting number, looks Dec 8, 2005 · Regardless of the HP number you can outrun many BBC's and AFR headed small blocks with some old junk camel hump heads. 6 valve. 96 valves. Find Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet and get Free Shipping on Orders Over $109 at Summit Racing! No longer will fans of the small block Chevy have to choose between vintage looks or modern cylinder head power—Trick Flow® DHC™ 175 cylinder heads give you both! Made from premium grade, lightweight A356-T61 aluminum, DHC™ 175 heads feature the exterior Jan 8, 2005 · Back to your original question, most people call the "camel hump" heads fuelies but as stated before, only the 461 were true fuelies. As a result the double hump heads continue to be a favorite with performance minded enthusiasts. Through . 60 heads had AROUND 64cc while the 1. I would not be surprised if these heads added at least 45 - 50 HP at the crank over old double humps heads alone. The second-generation engine featured aluminum heads, reverse-flow cooling (the heads received coolant first, in lieu of the block), and electronic controls. The first double-hump heads had no accessory holes, because the brackets were mounted to the block or water pump. The 186 head, unmilled generally runs out around 67-68 CC chamber size as it has a relief above the spark plug like the 291 and 462 castings do. 94's. 165 bore adaptor, we dont have 1. The X is on the underside, near the water port. If your car is a '67 or '68 then you do not need accessory holes, unless your car is not original. LT5, ZR-1, DOHC 32-valve, aluminum. The reason this is important is when we start plugging numbers into a compression ratio program—the short stroke makes adding compression difficult without going to domed pistons. To preserve the vintage theme, exterior touches like straight spark plug holes, castings with or without accessory bolt holes, and other OE double hump head styling cues deliver the traditional look you're going for. 50 heads Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet TFS-30210003 TFS-30210003. Mar 20, 2010 · From the early 60's until the late 70's they were called Super Port-Flow heads, and were kind of like the "state of the art" for their day. 94/1. Actually, there are four part numbers for this cylinder head. L-29 461 BBC 11. Jonathan Jul 26, 2009 · Do you know what our heads would flow on a smaller bore adaptor Tom or is their a conversion? It was either a 4. Website: www. all flow about the same. 500" as a 151cc smog head. For performance applications, there are other GM castings that are similar in specs. this info is from memory. Gen. 50 heads had AROUND 58cc. Basically, there were two versions of the 461 and 462 double hump heads. I'd love to see the two compared, so as to see at what point in lift, the 2. Oct 26, 2023 · 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. 2 LT4, Reverse flow, 195cc intake, angle plug. Sep 6, 2005 · you can go to either the carcraft site or the chevy high performance site and see the flow numbers for the heads and the flow numbers for other small block heads stock and aftermarket. Some were suspicious of the aftermarket, while others were looking for low-buck power upgrades. Aug 30, 2009 · 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 Nov 7, 2019 · Today in the shop we’re learning about our new aluminum double hump cylinder heads for the small block Chevy V8. You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you! Mar 23, 2008 · 461 and 462 heads have different chamber sizes for the different valve sizes originally installed in them. The formula that David Vizard gave was: [(New Pressure Drop/Old Pressure Drop)^(1/2)] x Flow at Old Pressure Drop Chevy Double Hump Fuelie Heads T he “double hump” or “fuelie” heads have been around since the 1960’s. Typical Camel humps only flow 195 CFM. and measure the CCs of the combustion chamber then choose cam and compression Aug 2, 2007 · I've spent a lot of time porting and testing iron heads. Stock flow numbers on the SBC TFS Double Humps out of the box. Save yourself the hassles of hunting down original GM 3782461, 3782461X or 3890462 castings, only to find out they can't be saved. The most famous heads are the 461 and 462 heads that offer 160-cc intake ports, 64-cc chambers, and 2. These were flowed without the intake and without exhaust pipe. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright 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. They can be had cheap now but you have to check them for cracks prior to doing any work on them. What do you think of these heads that will give a somewhat factory appearance? Dec 18, 2008 · I've got a bare set of camel hump heads with casting number 3782461 and 1. Again, it just depends on the preparation above the seats. 02/1. These heads were the "only way to go" back in the day - plentiful and resonably priced, yet surrounded by the usual clueless lore and mis-information that is so often part of "hot-rod tech" at bench-racing sessions. the larger valve. The heads you have (462) came along in 66. comEmail: weingartnerracing@gmail. I have ported 186 style Chevy heads to flow over 250 CFM intake flow. 02 make sure they unshrouded the intake valve properly or the valve will sit too close to the combustion chamber wall and not flow as well as it did with the 1. Comments welcome. 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 to its peak HP higher in Apr 5, 2024 · Chevy SBC Assembled Aluminum Camel Double Hump 461 Cylinder Head (speedwaymotors. I plan on going to a 2. The X DOES NOT follow the casting number. Part Numbers Following are the Trick Flow part numbers for the four DHC 175 assembled cylinder head options: With drilled accessory holes TFS-30210006 1. Info is limited on these particular heads in this printout so they prolly have the regular chambers and small runners. Later models were designed for use with accessory brackets that mount to the heads. That wrecking yard I visited has got various types of those camel hump heads lying around. 05 intake and a 1. Nov 17, 2001 · Ran across a sidebar on page 66 that noted while the flow numbers in the book were taken at 25" of water, it was possible to convert pressure drops to allow direct comparison of flow numbers. 02 or 2. look for casting 462, 461, 291, 186, 041. Mar 29, 2018 · Although not all double-hump heads were on fuel-injected engines, many bench racers categorize all camel-back heads as Fuelies. There may be some castings that flow 203-205 CFM but the Vortec out flows all of them out of the box. 400" they flow as well as the -291 oval port SS heads but then the older oval port SS heads flow better from . I need the flow numbers so that i can put it in desktop dyno. The best thing to do is to cc any head that you have so you know EXACTLY what you are dealing with. The 2. There are several closed chambered heads with different casting numbers and markings that will perform as well and a original fuelie head. According to an old MorTec print out I have, those heads came on a 66-67 327 w/ no accessory holes. 94 intake valve heads that someone upgraded to 2. 400 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. And since then the term has just stuck, although the double hump heads were used on MANY SB engines up through the very early 70s. (I asked a W/Products tech guy on this) Oct 21, 2021 · TFS Camel Hump Headsflow numbers. You can see the heads for yourself at the Trick Flow Specialties booth #23011 in the Race and Performance Section, Central Hall. - If you need to run iron heads, find a set of 461x heads (has the "x" cast in next to the casting number). 06" smaller than the "excepted" diameter and got equal flow numbers from the smaller valve vs. 5-inch valves or they might have been made with 2. May 19, 2010 · 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. A perfect option if you're looking for 327 double hump heads, 350 camel hump heads, or 302 heads. P. Jan 10, 2024 · I show both the stock and trick flow double hump heads and give you real flow numbers. Those heads only have 160 cc intake ports. This will be in a 4000lb off road truck Jul 6, 2018 · Those double-hump heads generally have 64cc chambers. I honestly think with my current combo I could run high 11's @ 115mph on radials with a cam that isnt even 1/2" lift and less than optimal gearing. The 492, 292, and 186 heads have a slightly different looking camel hump. Nov 3, 2006 · I'm not a big fan of World heads. 155 or 4. Also if these were 1. 69 Camaro RS, 383ci,10. 94 valves. 94s. 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; Designed for 4" bore 1962-86 small block engines (302/327/350). com) I had to wait almost three months last year to get my factory heads done, and it was not cheap. After 1969 these were made with accessory bolt holes and 64cc combustion chambers. 60-inch valve sizes. Mar 10, 2009 · 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. 030" bore fixture: Lift Intake Exhaust . 500/. You need to get the last 3 numbers from the casting numbers and look them up. I think these heads wonderful on nostalgia type projects and old school type cruiser engines. Aug 24, 2004 · These heads are getting rare because they have the accessory mounting holes in them and alot of them have been used up. 500 lift. Apr 7, 2002 · does anybody know the flow numbers for the 461 double hump heads. We have a good supply of used ‘186 & ‘492 heads available with everything from “Undercover Porting” to CNC Sportsman Porting. com Jun 27, 2010 · Gotta check that article again. The easiest way to reference any production head is with the last three digits of its casting number. They are beefy for porting, but they flow almost identically below . Oct 19, 2009 · As already mentioned, it is generally considered that the better choice of the EARLIER double hump heads are the 61-63 (ONLY) 461X versions. The "041" heads compare favorably but the '96 to '01 GM L-31 5. wengines. The actual CFM flow numbers would depend on if any work was done to the heads, and the quality of the valve job. 460-inch dual valve Nov 2, 1998 · We got some valuable information about all fuelie / camel hump heads and some really interesting, too, particularly about #292 angle plug heads, and some about #461x castings, too. 94 1. Mar 30, 2013 · buying heads for 150,spending 150-250 to freshen them and or make them compatible with unleaded gas,and porting them,,,,might be better to buy either aluminum or dart cast iron heads,,,most after market heads flow 230 CFM or more,which is enough to build a 450 hp engine. 5 76cc heads, except at . Jul 15, 2014 · Head Casting Numbers: Chevrolet Small Block Engines. 6-inch valves. These heads may have come with 1. Dec 23, 2017 · Airflow Numbers. 02 1. Vortec 5700, L31, 170cc intake ports. flow numbers for sbc 186 heads As with all Trick Flow® cylinder heads, DHC™ 200 heads are cast from A356-T61 aluminum to keep weight low. Published specs can be way off. Then, in 1997, the third-generation small block was released. Stock “double hump” heads flow 202 cfm intake Not even W/Products seems to have numbers on their 1. Pontiac 15 degree heads, aluminum, 224cc ports. Porting can increase the flow of either head but typically costs more than just buying better heads. 02 valves just to produce 89% of the flow that Vortecs make at 170cc with 1. 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. Not wise in my opinion. 200 125 119 Oct 4, 2013 · head flow 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. Or I could run vortec heads with edelbrock performer EPS #2716. Jul 6, 2019 · Well Vortec heads are better out of the box over the old camel hump heads. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Oct 16, 2015 · As the decade wound down, the camel hump heads continued to endure with subtle tweaks for power improvements. Wyatt and Joe compare them with the original GM 461 casting or "fuelie heads" that debuted on the 1961 Corvette with Rochester fuel injection. 600 lift. Even the Dart Iron Eagle needs 174cc and 2. The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. Only the valve size is changed on them. You're talking about low RPM performance 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 Nov 1, 2007 · The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. Mar 13, 2009 · There are no accessory bolt holes in the ends of those heads. Like the previous camel hump heads, casting number 3927186 was offered in both small and large valve packages. Jun 11, 2023 · There’s tons of flow numbers to be found for these castings in all states of rework that you can find on the Stan Weiss site. Dec 12, 2018 · The first generation that started it all in 1955, remained in effect until 1992, when the second generation (LT1) was released. The stock 283 used a 58cc chamber. The flow in cfm for the 461's is only about 30-40 below Vortec heads May 29, 2019 · Along with an old single point distributor Just shifting it at 5600 rpm or so it surprised him and me. 1. Features like fast-burn combustion chambers, high-velocity ports, large diameter valve springs, and positive stop valve seals bring the vaunted camel hump heads into the 21st Century. Jan 25, 2020 · I've reshaped ports with valves . 60cc CNC-profiled combustion chambers combined with a state of Nov 21, 2010 · Especially around the center siamesed exhaust ports where the head is the hottest. At the moment they are bone stock 1. Part Number: TFS-30210003 Estimated Ship Date: Today Aug 12, 2017 · As the double-hump heads started showing up on more Chevy products and losing favor with some performance small-block owners because of aftermarket swaps, a loyal sub-culture devoted to the early camel-back cylinder heads was growing. Later we offered the FireBall heads for small-block Chevys and Fords. These were serious race heads, made from ported and polished, new Chevy 461 and later, Turbo 292 castings. BUT UNFORTUNATELY NO ACTUAL FACTS LIKE INTAKE PORT CC´S OR FLOW NUMBERS. This will be in a 4000lb off road truck Jan 21, 2018 · Hate to burst your bubble but where I live a set of "Camel Hump" heads will cost you around 250$ ( the circle-track guys buy every set they can find). Trick Flow offers the DHC head in both styles. They are still used in a variety of applications. Anyway my measurements are from stock heads, not ported, so what could be the difference between the magazine´s and my measurements? My measurements may be off by 1-2cc, but no more. The S/R Heads and the S/R Torquers are exactly the same casting. Apr 13, 2015 · The only difference between the two casting numbers was that the #3782461 featured a 160cc intake port and 62cc exhaust port while the #3782461X had the larger 172cc intake port and 64cc exhaust port. 60cc CNC-profiled combustion chambers combined with a state of Jun 11, 2019 · I am looking to replace my 462 camel hump, 64cc, 2. 5-1 AFR 195's ported, Comp 286HR, 4340 forged Crank & Rods, JE Pistons, RPM Airgap, Holley 750 HP carb, 350 turbo w/ shift kit, 3000 Coan, Be cool, caltracs,12bolt 355 Nov 29, 2008 · This video shows you how to identify camel hump heads. Jul 21, 2012 · Hey MasterBlaster,,,As you probably know,,, there are camel hump heads and then there are Camel Hump heads. Feb 20, 2010 · The cylinder heads part, 190cc is the intake runner volume where the air/fuel runs too from your intake, bowl blending is taking some rough casting out to make the heads flow a little better, heads were milled (material taken off) from 64cc chambers (where the valves are) to 58cc's, this raises compression. your first task is to take the heads and put them on a flow bench get intake and exhaust numbers for . SF600, 4. 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. 5 186 casting camel hump heads. After you pay to have them hot-tanked and checked for cracks you'll still need to spend about a grand having hardened valve seats and bronze valve guides and threaded rocker studs installed, not . 7L Vortec heads are in much greater supply, still available from GM and flow better than even the best double-hump heads. Nov 25, 2001 · Intake rwmers should be right around 161 CC's, and exhaust right around 62 CC's (unless they were the 461X casting, then they were about 172 CC's intake, and about 64 CC's exhaust). 64cc heads and asked for the full flow numbers and was given a Jun 28, 2010 · You have to remember that 383 by nature are lower reving torque engines – the use of ultra trick high flowing heads is great for some applications where you’re trying to extend the upper RPM range (and have built a stout forged bottom end) but … for most street/performance applications, the larger valved and pocket ported ‘Camel Hump Jul 11, 2006 · Thanks Fred! Great stuff. 470-inch single valve spring TFS-30210007 1. 10@118mph 9-30-22 As with all Trick Flow® cylinder heads, DHC™ 200 heads are cast from A356-T61 aluminum to keep weight low. Oct 19, 2010 · These were ORIGINALLY referred to as "Fuelie" heads, and that is where the term originated. For instance, the camel hump symbol (also called double hump) can be found on 461, 461X, 462, and 291 casting heads. Oct 14, 2020 · I have a set of camel hump heads with under cover porting from brezezinski and would have to run edelbrock torker ll intake #5001. from what i can find out, these were also the same number as 327s and 350s. Nov 15, 2005 · THen compair the flow numbers and there is no question that the combination of Modern combustion chambers and superior flow numbers gives u a better head. 02" heads due to a crack that has developed. 6 heads gained flow. 400/. rnzod ntnlz tcqn rel dzy qaggn kqomy ruueca effwb gaqguj