Valve Train

Short tracks w/ small engines in heavy car. Very good torque throughout range.Installation InstructionsInstallation InstructionsThis Part...

Short tracks with 2 BBL carburetor and stock exhaust manifolds for small cubic inch engines.Installation InstructionsInstallation InstructionsThis Part...

Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.Installation InstructionsInstallation InstructionsThis Part...

Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.Installation InstructionsInstallation InstructionsThis Part...

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early...

High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.Installation InstructionsThis Part...

High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.Installation InstructionsInstallation InstructionsThis Part...

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early...

High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.Installation InstructionsInstallation InstructionsThis Part...

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early...

Pro Street applications, excellent for multi-stage kits or 671 blower. 2800+ stall.Installation InstructionsInstallation InstructionsThis Part...

Street/strip applications, 125+ hp kit or medium blower, 2500+ stall. Rough idle.Installation InstructionsInstallation InstructionsThis Part...

High performance street. With 100-150 hp nitrous kit or small blower.Installation InstructionsThis Part...

Works well in near stock engines with up to 125 hp nitrous kits.Installation InstructionsInstallation InstructionsThis Part...

3/8-5/8 tracks w/ wide corners or slick surface. 355+c.i., 12:1 compression, 4 BBL gas or alcohol with good intake and heads. Nitrided.Installation InstructionsThis Part...