Mutha' Thumpr™ Hydraulic Flat Tappet Camshaft
Pro-Plasma Nitrided
Lift .510"/.495"
Duration 287/304
RPM Range 2000-5900

Thumpr flat tappet Pro-Plasma Nitrided camshafts from COMP Cams offer performance and extreme durability. Three unique cam designs--Thumpr, Mutha' Thumpr and Big Mutha' Thumpr--deliver excellent horsepower gains and broad torque curves (and now, improved surface hardness) for your musclecar and street rods. Pro Plasma nitriding introduces nitrogen into the cam material for improved initial and long-term wear characteristics. It is the best way to increase the hardness and lubricity of Thumpr flat tappet cams. Don't be blinded by the shiny cam finishes--choose race-proven Thumpr Pro-Plasma nitrided camshafts from COMP Cams.

Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572


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

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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