![]() 050 Exhaust: 240 degrees - Lift Valve Intake. Hydraulic flat tappet lifters are included with each Performer RPM camshaft. With 10 to 12 inches of manifold vacuum at idle, Performer RPM cams have more lift and duration than most street camshafts. In 1977, General Motors began to source a larger selection of V8 engines to supply in the lower model Firebirds, and the Oldsmobile 350/403 V8, as well as the. This hydraulic lifter camshaft is dyno-matched to Performer RPM manifolds for high-rpm horsepower while still maintaining acceptable low-end torque. The camshaft works well with high-performance's street applications, Performer RPM cams provide power from 1500 to 6500 rpm. ![]() of torque when used with #7156 intake and #60599 cylinder heads on a 455 engine. ![]() This Edelbrock cam kit produced 422 HP & 441 ft-lbs. Camshaft / Lifters - Performer RPM - Hydraulic Flat Tappet - Lift 0.470 / 0.470 in - Duration 231 / 240 - 112 LSA - Pontiac V8 - KitĮdelbrock part #7157 Performer RPM Camshaft is designed for Pontiac 350-455 V-8 applications.
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