WebMade to almost factory correct specifications, these camshafts are made to emulate the classic Ram Air III and Ram Air IV camshafts, but are designed to give more power and reliability while still giving a factory sound. Fits 1964–1973 Pontiac GTO, 1961–1973 Pontiac LeMans, 1961–1970 Pontiac Tempest, , , , , . WebNov 13, 2024 · The Edelbrock cylinder heads have Ram Air exhaust IV ports—so you should use this set of Hedman headers. Keep your compression ratio at about 9.5:1. According to Edelbrock, this combo will yield 422 horsepower and 441 foot-pounds of torque on pump gas. Keywords. mailbag, Pontiac 400. Author: OnAllCylinders Staff.
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WebButler Exclusive Pontiac Ram Air IV "041" Hydraulic Roller Retrofit Camshaft and Lifter Kit, 287/296 232/241, .507/.541 HR113 (0) Reviews: Write first review Description: The Butler … WebNov 2, 2008 · HPP202 E. Main St.San Manuel, AZ 85631 (520) 229-9375www.rhoadslifters.com. Crower Cams Crower Cams is a name synonymous with … grace hambly
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WebAll 1968–69 #9792506 Ram Air 400 blocks have 4-bolt caps. The Ram Air IV used the Ram Air II's camshaft but lift in the Ram Air IV was increased to 0.52 in (13 mm) thanks to the use of 1.65 ratio rocker arms (vs 1.50). The Ram Air IV heads had 1/8" taller intake ports, larger intake port volume with more airflow, yet shared the Ram Air II ... WebEngine on the 1969 Pontiac Firebird Ram Air IV. The factory rated the Ram Air IV at 345 horsepower, just 10 more hp than the Ram Air III, but a look at the spec sheet tells a … WebDec 31, 2003 · If you adjusted the lifter to be in the middle of the Ram Air 4 travel (.060") vs the normal Pontiac travel (.120") the lifter had a much smaller chance of "pumping-up" Pontiac Ram Air 4 lifters were normal lifters except for that change. I have swapped out good used inserts (push rod seats) from Ram Air 4 lifters to new stock lifters many ... chillicothe auto