COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Small Block Chevy Gauge Dimmer Switch Its progressive layering provides great

Its progressive layering provides great filtration efficiency and dust holding capacity

& 21-3) are not sold separately

Dodge / Plymouth 1963-74

Keeps third member away from dirt and debris

and 1X straight

COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Small Block Chevy Gauge Dimmer Switch Its progressive layering provides greatDesigned 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 intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain