COMP Cams 23-601-9 Thumpr Hyd. Roller Camshaft, Mopar B/B
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InfoCOMP Cams Mutha' Thumpr 291THR-7 Retro-Fit Hydraulic Roller Camshaft for Big Block Chrysler, Three Bolt.
Chrysler 383-440 C.I. 8 CYL. 1959-1980. Big Mutha' Thumpr : Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Retro-Fit Hydraulic Roller Camshaft. 3 grinds to fit all of your performance needs. Unique design. Maximizes sound and mid to high RPM power. Ensures safe piston-to-valve clearance. Proven to generate 25+ RWHP gains. Does not compromise durability.
- Three unique cam designs for each application that deliver excellent horsepower gains & broad torque curve; perfect choice for muscle cars & street rods
- Early intake valve opening & long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
- Best with aftermarket converters & more rear gear
Application1959-78 Chrysler 383-440
1961-78 Dodge 383-440
1961-78 Plymouth 383-440
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