Best hydraulic roller cam for 454

True to form, the XE268 showed very good output, posting 483 hp at 5,300 rpm, and 541 lb-ft of torque at 3,900 rpm. The relatively mild-mannered idle quality and excellent torque lower in the rpm ...

Best hydraulic roller cam for 454. The camshaft is one of the most important factors in determining an engine's overall performance profile and capability. Chevrolet Performance precision-engineered Hydraulic Roller Camshafts are extensively tested and available for popular GM small block, big block and LS-series engines.

Hydraulic Roller Cam. Good cam for high performance street and mild strip applications with strong mid range and upper RPM torque and HP. Needs 3000 RPM stall converter, headers, 9.5:1+ compression ratio and 3.73 gearing+. ... Chevrolet Big Block Mark VI 454, 502 300/310. Be the first to review this product . out of stock. SKU. 20010550LKLUN ...

Find CHEVROLET 7.4L/454 Chevy big block Gen VI Camshaft Kits and get Free Shipping on Orders Over $109 at Summit Racing! ... Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 296/302, Lift .566/.566, Chevy, 454, 502, Kit. Part Number: CCA-CL01-456-8. Not Yet Reviewed.There are plenty of hydraulic roller cams for around $500, not $1500. The one I'm putting in my 454 would work great in a 396. Howards Cams 214/222 with ~ .530 lift. When a cam lobe goes south, the metal shavings go into the sump, not into the bearings. They have to pass through the filter first. And rings are lubricated from the splash of the ...I am a big Comp Cams user but am not a fan of the non roller version. However it would be a good performer and give you the sound you are looking for. The flat tappet version runs in the range of 1800-5600 and the Hydro Roller runs 1700-5500. ... The most powerful hydraulic cam in a 454 I've found is the Lunati pn 00026. It betters all …The Speedmaster 746-PCE435.1018 top end kit will bolt to a '97 454 block. Answered by: jshook. Date published: 2024-02-16. Will this work on a gen 5 block if so what is needed  ... Big Block Chevy Aluminum Cylinder Head for use with Hydraulic Roller Cam [335 cc Intake Ports, Straight Angle Spark Plugs] (0) $863.89. Related Items ...Advertisement Although everything on the truck begins and ends with the hydraulic system, there's more to a hydraulic truck crane than the hydraulics. There are many components inv...Xtreme Energy 206/212 Hydraulic Roller Cam for Chevrolet Big Block 396-454 ... Xtreme Energy™ 206/212 Hydraulic Roller Cam for Chevy Big Block 396-454. Strong torque and good mileage. RV and towing for stock to mildly modified engines. In stock. SKU. 11-408-8. $522.95. Qty. Add to Cart.The hydraulic flat tappet cam in the 454 that was in my 65 396 Roadster when I got it had gone flat and my attempt to flush the old particles out of the engine and …Nov 21, 2020 · C1 & C2 Corvettes - Hydraulic Roller Cam Suggestions for a Bigblock - I have another thread currently running that's titled: Problems Pulling a Bigblock and Tremec Trans Together and have gotten a lot of very good suggestions. The hydraulic flat tappet cam in the 454 that was in my 65 396 Roadster when I got it had...

Top End Kits, Street Series, Hydraulic Roller, Aluminum Heads, Oval port Single Plane, 320cc Intake Runner, Aluminum Valve Covers, Chevy, 454, Kit ... Chevy BBC 454 Hyd. Roller Valve Springs, Aluminum Cylinder Head Top End Engine Combo Kit. ... Cam, Timing Chain, Head Bolts, BB Chevy, 676 HP-649 TQ, Kit. Part Number: EDL-2078. Not …pannetron. 734 posts · Joined 2009. #4 · Mar 4, 2021. Amsoil break in oil would be good enough even for flat tappets, you don't need an additive. Roller tappets don't need ZDDP unless you're running way high spring pressures. "Too bad ignorance isn't painful". shovelrick and mr 4 speed. Save.The camshaft is one of the most important factors in determining an engine's overall performance profile and capability. Chevrolet Performance precision-engineered Hydraulic Roller Camshafts are extensively tested and available for popular GM small block, big block and LS-series engines.Hydraulic Roller Series. Isky Hydraulic Roller Camshafts are manufactured from the finest quality, Special Deep Hardened Steel Billets that are fully compatable with stock factory style cast iron distributor gears. We offer a broad assortment of profiles for Small & Big Block Chevy V-8, Late Model 4.3 Litre Chevy V-6 and Late Model Ford 302-HO.Wondering if the duration will be weak with the extra cubes from a 454. Howard's Cam-108 Lobe Sep .680 / .680 lift Duration at 050 Exhaust: 269 ... maybe 5-7 degrees longer and a 105-106 lca, this is very likely to limit lift to the low to mid .580-.600 range in a hydraulic roller cam, ... a good set of BBC heads with a 2.30 inch intake …The hydraulic flat tappet cam in the 454 that was in my 65 396 Roadster when I got it had gone flat and my attempt to flush the old particles out of the engine and …

The best hydraulic roller cam for Chevy 454 is the COMP Cams 11-600-8 Thumpr Hydraulic Roller Cam. It is engineered for the 396-454 8-cylinder engines produced between 1967 and 1996. The unique feature of this model is the early intake valve opening combined with a long exhaust duration.My suggestion is to use the Comp Cams 280 Magnum cam. Single pattern cam, 230 @ 050, 110 LSA. It will have a slight lope, small enough for a good idle with 10:1 CR, but also big enough to bleed off some compression for detonation control. X2. Used this cam in a friends 454 that is real similar to your set-up.For this final dyno run, Dart left the 750 carburetor but switched out the solid roller lifters and camshaft for the hydraulic. Everything else stayed the same, and the hydraulic camshaft managed to make a 570.3 peak horsepower at 6,200 RPM before it dropped off, and “only” registered 545.7 ft-lbs of torque at 5,000 RPM.Because of the quick valve-opening action of a roller cam, it generally requires springs with more tension, but not always. It's very important to use springs that match the recommendation on the ...

Yourdreamcouple threesome.

Find CHEVROLET 7.4L/454 COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits and get Free Shipping on Orders Over $109 at Summit Racing! Musclecar sound is …I'm going to be getting a hydraulic roller cam ground by Straub soon and have a couple questions. Is it best to go with the Gen 6 cam for roller conversion? If I went with the retrofit cam for my 396 would the cam button work under the stock timing cover? ... matching # LS5 454+.060" 9.2 :1, 2.19/1.88 valves,Comp HR cam 289/295 234/240 .613 ... Best Cam For Stock 454: Top 5 Models. 1. Lunati 10110703LK Voodoo 227/233 Hydraulic Flat Cam/Lifter Kit (Editor’s Choice) Lunati Cams are designed with perfection to offer slower closing sides, better engine sound, and enhanced performance. As a result, it can be an excellent choice for a Stock 454. Cam Saver Hydraulic; Heavy Duty Hydraulic; Rev Max Hydraulic; Variable Duration; Solid Flat Tappet. ... Drop In Style Hyd Roller Lifters; Retro Fit Style Hydraulic ; Mechanical Roller Lifters. Buick Roller ... Performance level - Beast - Superior upper bottom, mid-range and top end power. INT/EXH - Dur @ .050” Lift: 245°/253° RR: …Okay building a big block chevy with Brodix heads and a hydraulic roller. looked at comp cams #854-16 high energy lifters but they have bad reviews on summit. Next were the Howards cams #91167 street series lifters and they have bad reviews on summit. Third I looked at Lunati #72331-16 street performance lifters and they only had …Oct 9, 2012 · All of the 454 blocks are drilled for the cam plate screws. Most hydraulic roller cams are made with a cast iron gear so there is no need for a bronze distributor gear, but your cam manufacturer can tell you for sure. You absolutely will have to change valve springs also so be prepared for that.

The COMP Cams Mutha Thumpr 235/249 Hydraulic Roller CL-Kit for Chevy Big Block 396-454 is a high performance street/strip cam with a rough idle. ... Mutha' Thumpr™ 235/249 Hydraulic Roller Cam and Lifter Kit for Chevrolet Big Block 396-454. High performance street/strip, needs 9:1 compression, 2400+ stall, intake, gears, and headers, rough ...Isky lifters and springs and steel rockers, will work well in a high performance street application. I suggest steel rockers as they will last ...No Product Score Action; 1: Lunati 10110703LK Voodoo 227/233 Hydraulic Flat Cam/Lifter Kit for 396-454 Chevrolet Big Block: 9.8: Check Price On Amazon: 2: COMP Cams CL11-600-4 Thumpr 227/241 Hydraulic Flat …True to form, the XE268 showed very good output, posting 483 hp at 5,300 rpm, and 541 lb-ft of torque at 3,900 rpm. The relatively mild-mannered idle quality and excellent torque lower in the rpm ...Today i opened my engine and found out that i have Hydraulic Roller Tappet in the engine. What else do you need to know to tell me what the best cam is for …Failure to utilize the proper distributor gear will void all warranties and/or return policies. Specifications. Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) RPM Operating Range: 3,500-6,500. Grind Number: XM308HR. Cam Type: Hydraulic Roller. Lifter Style: Hydraulic Roller. Camshaft Series: Xtreme Marine. Usage: Marine.These are COMP Camps High Energy, die-cast aluminum, roller rocker arms. They too mount to studs to allow adjustment. Here the new rockers, lifters, and pushrods are in place. The heads have been ...Magnum 224/224 Hydraulic Roller Cam for Chevrolet Big Block 396-454 ... Cam Type: Hydraulic Roller. Lifter Style: Hydraulic Roller. Camshaft Series: Magnum. Usage: Street/Strip. California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov. Advertised Intake Duration: 280.

A 454 engine requires a carburetor with a flow rate of at least 750 cfm. The appropriate carburetor size for a 454 engine is a commonly debated topic among car . ... 5 Popular Brands Makes The Best Hydraulic Roller lifters - 19 February 2024; Categories: Knowledgebase.

Street Master Hydraulic Roller Cam - Chevrolet Big Block Mark VI 454, 502 264/270. Be the first to review this product . out of stock. SKU. 20010346LUN. TEMPORARILY OUT OF STOCK, ORDER NOW! $341.95. Qty. Add to Cart. Wish List Compare. Details. Hydraulic Roller Cam. Good for daily driving, gas mileage and mild street performance. Improves … Xtreme Energy™ 248/254 Hydraulic Roller Cam for Chevy Big Block 396-454 Pro Street/bracket racing. 10:1 Compression, good intake, headers and a 3500+ stall. This is different from flat-faced lifters which perform best at zero 0 to ½ turn of preload. Tests at Crane R&D have consistently shown best performance (for hydraulic roller cam valve trains) occurs with the preload set at 1 ¼ - 1 ½ turns down from zero lash. This adjustment will maximize power throughout the RPM range and increase the ...This cam is best paired with aftermarket converters and more rear gear for optimal performance. The Comp Cams 11-601-8 Mutha' Thumpr 235/249 Hydraulic Roller Cam is designed for vehicle-specific fitment, ensuring a perfect match for your Chevrolet Big Block 396-454 engine.Hydraulic relief valves limit the maximum system pressure to protect system components. The valves also limit the maximum output force of the hydraulic system. Although they have a...Top 5 Best Hydraulic Roller Cam for 454 Chevy Reviews 1. COMP Cams 11-600-8 Thumpr Hydraulic Roller Cam. This hydraulic roller cam from Comp Cams is the result of 30+ years of experience the …Computer Controlled 210/220 Hydraulic Roller Cam for Chevrolet Big Block 396-454 ... HYDRAULIC ROLLER: For TBI 454 with stock computer. In stock. SKU. 11-412-8. $522.95. Qty. Add to Cart. Wish List Compare. Details. BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal.The best hydraulic roller cam for Chevy 454 is the COMP Cams 11-600-8 Thumpr Hydraulic Roller Cam. It is engineered for the 396-454 8-cylinder engines produced between 1967 and 1996. The unique feature of this model is the early intake valve opening combined with a long exhaust duration.COMP Cams' Billy Godbold goes over some basic but important tips about hydraulic roller lifters.Subscribe to our YouTube channels:COMP Cams http://www.youtub... Hydraulic Rollers Cams; Solid Roller; Carburetor Parts & Accessories ... H ere at Clay Smith Cams we take pride in making ... BBC 454 to 470 CID “Old School” OEM ...

Mjr theatre partridge creek movie times.

Craigslist in murrieta.

5736 posts · Joined 2019. #18 · Mar 10, 2021. Buddy bought a set of aftermarket hyd roller lifters from Rockauto last year, worked out great for him and no problems. They were like a couple of hundred bucks, looked pretty nice but I am not sure of whos lifters they are. L-29 461 BBC 11.10@118mph 9-30-22.We are a family farm in Ontario Canada enjoying showing you the work it takes to bringing eggs to your table today we are back on the dyno and we are going [email protected]. Stock 049 heads have very short valve springs and pockets. Only economical way to increase height is to use +.100 retainers. Std height locks. You will find these available in 10 degree. Use a rotator eliminator spacer in the exhaust spring seats. Then measure the available height.Advertisement If you've read How Hydraulic Machines Work, you know that the hydraulic crane is based on a simple concept -- the transmission of forces from point to point through a...I am a big Comp Cams user but am not a fan of the non roller version. However it would be a good performer and give you the sound you are looking for. The flat tappet version runs in the range of 1800-5600 and the Hydro Roller runs 1700-5500. ... The most powerful hydraulic cam in a 454 I've found is the Lunati pn 00026. It betters all …Aug 11, 2014 · 953 posts · Joined 2014. #1 · Aug 11, 2014. I am requesting a street cam selection for a daily driven "street" cruiser that does not see any track time. I am having to rebuild the 454 after only 12,000 miles due to the rings failing to seat and excessive oil consumption of 1 quart/200 miles. So, I am starting over and need to ask "real" world ... The best hydraulic roller cam for Chevy 454 is the COMP Cams 11-600-8 Thumpr Hydraulic Roller Cam. It is engineered for the 396-454 8-cylinder engines produced between 1967 and 1996. The unique feature of this model is the early intake valve opening combined with a long exhaust duration.788120717540. Crank / Assemblies Tech. Hydraulic Roller Cam. Excellent cam for maximum high performance street/strip applications with very good mid range and upper RPM torque and HP. Needs 4000-4500 RPM stall converter, headers, 10.5:1+ compression ratio and 4.10+ gearing.#1 · May 19, 2006. Here's my car: '68 Camaro, 4-speed, 3:73 rear, 468 ci, Edelbrock Perf RPM alum heads, Accel DFI fuel injection, Hooker Super Comp headers. Looking for …1. Comp Cams CL11-600-4 Thumpr 227/241 Hydraulic Flat Cam. This is amongst the most efficient camshafts for stock 454. And this is also why it is popularly … ….

There are plenty of hydraulic roller cams for around $500, not $1500. The one I'm putting in my 454 would work great in a 396. Howards Cams 214/222 with ~ .530 lift. When a cam lobe goes south, the metal shavings go into the sump, not into the bearings. They have to pass through the filter first. And rings are lubricated from the splash of the ...Hydraulic Pumps - Hydraulic pumps are capable of pushing large amounts of oil through hydraulic cylinders. Learn about hydraulic pumps and hydraulic pump capabilities. Advertisemen...27 May 2017 ... Best Cam For Stock 454 - Top 5 Picks of 2021 [Reviews & Buying Guide] ... Norm Collver's 427 BBC Chevelle with COMPCAMS XR276HR Hydraulic Roller ...Advertisement If you've read How Hydraulic Machines Work, you know that the hydraulic crane is based on a simple concept -- the transmission of forces from point to point through a... Rollin' Thunder Hydraulic Roller Camshaft Kit. 1987-Later Small Block Chevy 283-400ci. Lift: .539''/.548''. Advertised Duration: 296°/300°. Kit Includes Camshaft, Lifters, Hold-Down Spider, and Pushrods. 1500-6500 RPM Range. View Details. $984.95. Estimated to ship direct from manufacturer on 04/08/24, pending manufacturer availability. Xtreme Energy™ 206/212 Hydraulic Roller Cam for Chevy Big Block 396-454. Strong torque and good mileage. RV and towing for stock to mildly modified engines. The COMP Cams Mutha' Thumpr 235/249 Hydraulic Roller Cam for Chevy Big Block 396-454 is a high performance street/strip cam with a rough idle. ... Mutha' Thumpr™ 235/249 Hydraulic Roller Cam for Chevrolet Big Block 396-454. High performance street/strip, needs 9:1 compression, 2400+ stall, intake, gears, and headers, rough idle. In stock. …The Speedmaster 746-PCE435.1018 top end kit will bolt to a '97 454 block. Answered by: jshook. Date published: 2024-02-16. Will this work on a gen 5 block if so what is needed  ... Big Block Chevy Aluminum Cylinder Head for use with Hydraulic Roller Cam [335 cc Intake Ports, Straight Angle Spark Plugs] (0) $863.89. Related Items ... Best hydraulic roller cam for 454, Dec 28, 2020 · The best cams for stock 454. 1. Comp Cams CL11-600-4 Thumpr 227/241 Hydraulic Flat Cam. This is amongst the most efficient camshafts for stock 454. And this is also why it is popularly recommended. This is a hydraulic tappet and it offers the best in the class lift and RPM coverage. This special camshaft by Comp Cams has an excellent duration ... , For example, Comp Cam's classic Magnum hydraulic-roller grinds usually run fine with solid lifters at 0.0120.014-inch hot lash. But its newer, more aggressive Xtreme Energy hydraulic rollers get ..., , Apr 4, 2007 · 2,200-5,800 RPM Range. $522.95. Strong torque, good mileage, RV and towing. 1,000-5,000 RPM Operating Range. 206/212 Duration at .050". 110 Degree Lobe Separation Angle. .510"/.510" Valve Lift. Excellent performance in street carbureted applications. More vacuum allows an increase in duration for improved performance and assists power brakes. , 3 Jul 2016 ... Many are now achieving 6800-7200 rpm safe rev points with reliable hydraulic roller camshaft and lifter combos. Remember these are systems and ..., These are COMP Camps High Energy, die-cast aluminum, roller rocker arms. They too mount to studs to allow adjustment. Here the new rockers, lifters, and pushrods are in place. The heads have been ..., I’ve got a 454 big-block Chevy that I’ve installed a hydraulic roller cam which also meant I had to also use taller hydraulic roller lifters. With it all bolted back together, it’s pretty obvious that the pushrods from the old hydraulic lifters are now way too long. ... Pushrod length plays a very important role in establishing the proper ..., Failure to utilize the proper distributor gear will void all warranties and/or return policies. Specifications. Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) RPM Operating Range: 3,500-6,500. Grind Number: XM308HR. Cam Type: Hydraulic Roller. Lifter Style: Hydraulic Roller. Camshaft Series: Xtreme Marine. Usage: Marine., Moving Up to a Hydraulic Roller Cam. By Engine Builder. Published: Jul 19, 2012. The advantages of a roller cam include: no need to. break-in the cam on initial startup, the lifters can be reused if you. change cams, the open and close ramps of the lobes are faster, giving. you more torque and horsepower for any given grind, roller …, Jul 30, 2022 · This hydraulic roller cam is a great upgrade for your 454 Chevy engine. With the premium lifters, you create the street performance you crave. Get ready for increased power and heightened performance that blows away the competition once you finish the installation. This kit works with 1965-1996 396 and 454 big block engines. , The hydraulic roller cam we chose to replace this flat tappet cam is from the Summit Racing lineup of Pro SBC Camshafts. It offers similar duration numbers as seen in the accompanying chart with 218/227 degrees of duration at 0.050 inch tappet lift for the intake and exhaust respectively., Evolution Retro-Fit Hydraulic Roller Lifters for 396-454 Chevrolet Big Block ... retro-fit roller lifter for early model blocks originally equipped w/ flat tappet cam, tall body fits both standard blocks & tall lifter bore aftermarket blocks - Set of 16. ... Oil Band Top: 1.42 in. Oil Band Bottom: 0.93 in. Lifter Overall Height: 3.23 in., Rollin' Thunder Hydraulic Roller Camshaft Kit. 1987-Later Small Block Chevy 283-400ci. Lift: .594''/.594''. Advertised Duration: 305°/314°. Kit Includes Camshaft, Lifters, Hold-Down Spider, and Pushrods. 1500-6500 RPM Range. View Details. $1,219.95. Estimated to ship direct from manufacturer on 04/08/24, pending manufacturer availability., The COMP Cams Mutha' Thumpr 235/249 Hydraulic Roller Cam for Chevy Big Block 396-454 is a high performance street/strip cam with a rough idle. ... Mutha' Thumpr™ 235/249 Hydraulic Roller Cam for Chevrolet Big Block 396-454. High performance street/strip, needs 9:1 compression, 2400+ stall, intake, gears, and headers, rough idle. In stock. …, New paint roller covers leave lint on the walls — unless you condition them first. Here's how to do that. Expert Advice On Improving Your Home Videos Latest View All Guides Latest ..., Elgin Hydraulic Roller Camshaft: Chev BB Mark IV 396-502 '65-'96 Retro-Fit Adv. Duration: 296/308 Duration @ .050 ... $329.95. ELGE1236P: Elgin, Retro Fit Hydraulic Roller Cam, BB Chev, 396-454, 316/324, 236/246, .561/.578, 110 LC: Chev BB Mark IV 396-502 '65-'96 Retro-Fit Adv. Duration: 316/324 Duration @ .050": 236/246 …, Just had engine on dyno last Friday.1977 454 chevy 4x4 truck bored .030 over to 462 ci, 9.5:1, Keith Black hypertectic pistons, Crane hyd roller cam 139011, crane hydraulic roller lifters 13532 & Harland Sharp 1.7 roller rockers,rebullt stock heads with Manley ss valves,edelbrock performer rpm with orig rebuilt stock 750 q jet and results = …, Isky lifters and springs and steel rockers, will work well in a high performance street application. I suggest steel rockers as they will last ..., Hydraulic Roller Cam- BBC suggestions. November 21, 2011, 02:29 PM. Earlier this year, I bought a 454 out of an RV that is real good shape EXCEPT for a burnt valve. I put it in my old truck thinking that I had addressed that problem, but obviously not. ANYWHO- I bought a top end kit from Patriot Performance that included a cam that is …, Xtreme Energy 236/242 Hydraulic Roller Cam for Chevrolet Big Block 396-454 ... Xtreme Energy™ 236/242 Hydraulic Roller Cam for Chevy Big Block 396-454 street/strip applications. Works well in large c.i. street machine engines with a 2500+ stall. In stock. SKU. 11-433-8. $522.95. Qty., Excellent cam for high performance street applications. Works well with EFI with minor modifications. Good idle. ; Advertised Duration (Int/Exh): 285/295; Duration @ .050 (Int/Exh): 226/236; Gross Valve Lift (Int/Exh): .554/.575; ... EFI Hydraulic Roller Cam - Chevrolet Big Block Mark VI 454, 502 285/295. Be the first to review this product ..., I am a big Comp Cams user but am not a fan of the non roller version. However it would be a good performer and give you the sound you are looking for. The flat tappet version runs in the range of 1800-5600 and the Hydro Roller runs 1700-5500. ... The most powerful hydraulic cam in a 454 I've found is the Lunati pn 00026. It betters all …, Xtreme Marine 230/236 Hydraulic Roller Cam for Chevrolet Big Block 396-454 ... HYDRAULIC ROLLER: Good for jet boat with an impeller. Great for pleasure or performance use. In stock. SKU. 11-451-8. $522.95. Qty. Add to Cart. Wish List Compare. Details. BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal., Xtreme Energy™ 248/254 Hydraulic Roller Cam for Chevy Big Block 396-454 Pro Street/bracket racing. 10:1 Compression, good intake, headers and a 3500+ stall. , Find CHEVROLET 7.4L/454 Chevy big block Gen VI Lifters Hydraulic roller Lifter Style and get Free Shipping on Orders Over $109 at Summit Racing! ... Lifters, Race Series, Hydraulic Roller, Pro Max High RPM, Vertical Bar, Chevy, Big Block, Set of 16. Part Number: HRS-91171. Not Yet Reviewed., Dec 5, 2023 · Top 5 Best Hydraulic Roller Cam for 454 Chevy Reviews. 1. COMP Cams 11-600-8 Thumpr Hydraulic Roller Cam. This hydraulic roller cam from Comp Cams is the result of 30+ years of experience the company has. So, it claims the cam to be the most effective one from the brand. Most users have said the same. , I have a HOWARDS Roller Cam Chevy BB 120255 – 12 in my 2017 Rebuilt 468 ci. Year: 1965 - 1996. Make: Chevy. Engine: 396-502 (Mark IV) Camshaft Type: Hydraulic Roller. Basic RPM Range: 2400 to 6000. Valve Lift Intake: .578. Valve Lift Exhaust: .618. Duration Intake: 283., 67econobox. 182 posts · Joined 2010. #2 · Feb 19, 2021. For the markIV engines I use just a thrust button on the front of the cam. We are doing a stock …, This cam has a 218/224 duration, .525/.525 lift, and a 112 lobe separation angle. I was surprised at how much power this cam delivered and it was very easy to control. The best Hydraulic Roller Cam For 454 is ultimately a personal preference, but I found that the Comp Cams Xtreme Energy XE262AH-14 provided the best overall performance for my ..., Hydraulic Rollers Cams; Solid Roller; Carburetor Parts & Accessories ... H ere at Clay Smith Cams we take pride in making ... BBC 454 to 470 CID “Old School” OEM ... , Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. ... (396-454) (61) Chevy Big Block (396-502) (17) Chevy Gen VI 454 (27) Chevy LT1 (5) ... Xtreme Energy Retro-Fit XR288HR Hydraulic Roller Cam & Lifter Kit, The listed part numbered cams will not fit these models, so if you require a camshaft with the oiling groove, please call us at 1-800-999-0853 or click here to contact us, and we will assist you with placing an order. Specifications. Engine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) RPM Operating Range: 2,000-5,500. Grind Number: 280HR. , BBC 454 to 470 CID “Old School” OEM 049/781 heads to a max of 5700 RPM, or Brodix Race Rite 270’s to 6000 rpm. If you like your neighbors, don’t buy this cam. It makes long black marks on streets. Recommend headers in the 1 ¾” size with 3” collector. ... Chevrolet Big Block Gen IV Gen V & Gen VI Retro Fit Street Hydraulic Roller ...