The camshaft manufacturers are sorted alphabetically and are listed in terms of duration. (Stock, daily driver, street-strip, etc) The other columns to the right, contain the intake duration of a cam at. 510" Duration: 276°/282° Lobe Separation Angle: 110° RPM Range: 1800-5600 This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable $216. Depending on who you ask, that might not be true, but Pontiac was a big player in the muscle car market. So boosting the compression ratio with a big cam adds more lower RPM torque and power. Your not going to do as well picking and choosing lobes as working with the cam designer. Selecting a Hydraulic Cam for your Pontiac Engine. 625 rods, Federal Mogul rod and main bearings, Durabond cam bearings, Melling Oil pump, Edelbrock Performer RPM intake, 850 Qjet carburetor, 1 3/4 header, Rhodes lifters, 85 cc Chevy Cavalier 2. As my loyal readers already know, during the mid-1970s the muscle car era and horsepower wars were pretty much over. Perfect for the street and your buddy’s 3. The HorsePower guys prove that by extracting a 400 from a junkyard, machining the block and rebuilding it on a two-thousand dollar budget.
They give you a the performance and throttle response you expect from a performance cam. Manufacturer’s Name Part Number Advertised Duration Duration. The following information is provided as a guide only.Lunati’s hydraulic and solid flat-tappet cams, as well as hydraulic and solid roller cams, help Pontiac V8s to produce With its noticeable idle and great all-around power, the 268H cam is great for daily-driven performance vehicles. Buy COMP Cams 12-602-4 Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block: Camshafts - Amazon. Brute low end torque, great for daily driving. The 400-455 is pump gas friendly for the mild daily driver. These are good for most NA head & cam builds that want to maintain stock compression.
More information on block upgrades can be found on the Kauffman Performance, LTD. 11 gears and 4 speed were the only way you could get one in the 400's.
A good strong Pontiac 400 with a factory S cam and a good q jet will pull hard from idle to 4800. This is the same cam the old Superduty 421's 475 Horsepower 553 ft lbs of Torque. All standard Pontiac cooling passages are present. The Pontiac weighs approximately 4,300 pounds and is driven everywhere it goes. It has a built transmission that is a 4L60E with a 3500 stall. Jim Hand (big poncho builder) has taken the famous Pontiac "041" cam used in the 400 ram air 370 hp motors (needs about 10:1 and good gears in a 400 to work well) and run it in 455 and it is much more street friendly. VE is influenced by many engine parameters, such as cam timing, valve-area-to-bore-area ratio, intake port length and diameter, etc. 0 with ported and polished heads, big cam LS6 intake, long tube headers, and 3 inch exhaust. One example of this forward-thinking was the overhead cam six-cylinder (OHC6) engine that was the brainchild of Pontiac Chief Engineer John DeLorean. 46 gear and Turbo 400 trans the performance was great. They don’t need as big a cam due to the shorter distance even with slightly lower gears. Pontiac V-8 Engines: Valvetrain Performance Guide. 2) The LS9 Head Gasket is the factory OEM replacement gasket for the LS9 (. me and my buddy Big Block build a 455 with 6X heads, Magnum 305 cam, forged pistons, factory crank & rods, high rise intake Holley 850, 400 turbo, 12 bolt 4:11, 71 LeMans ran 10. If you want a rough idle and no torque put something else in. Pontiac is often credited for having introduced the first midsize muscle car, the GTO in 1964. 051" thickness) and has more layers than the LS3/L99 gasket. Howards Cams Big Daddy Rattler Retro-Fit Hydraulic Roller Camshaft Rattlers cams are for street enthusiasts who want the classic exhaust sound, but also want true performance to go with it. Master Power Brakes has a new Electric Vacuum Pump Kit ( PN AC9001K) that plays nicely with big cams because it provides that much needed vacuum for the brake booster, but it does so independently of any manifold vacuum source. Strong low & mid range torque, daily driving. If your needs are a stroker crate motor we can take and modify any Pontiac engine to your specifications. Big cam pontiac Big block Pontiac crate engines are also available in 428, and 455 versions.
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