Corvette Camshaft – Comp Cams MUTHA THUMPR Series 283THR9 : 1997-2004 C5 & Z06
MUTHA’ THUMPRâ„¢ – High performance street/strip, needs 9:1 CR, 2500+ stall, intake, gears, and headers, rough idle
RPM RANGE: 2300 to 6600
LOBE SEPARATION: 109
INTAKE CENTERLINE: 103
DURATION: 283 intake / 303 exhaust
DURATION @ .050″ LIFT: 227 intake / 241 exhaust
VALVE LIFT: .563 intake / .546 exhaust
LOBE LIFT: .332 intake / .322 exhaust
NOTE: Requires use of Corvette Camshaft – Comp Cams Valve Spring Kit : 1997-2004 C5 & Z06.