GM LS Thumpr Cam – 291THR
Camshaft – Big Mutha’ Thumpr – Hydraulic Roller – Lift 0.573 / 0.558 in – Duration 291 / 311 – 109 LSA – 2600 / 6800 RPM – GM LS-Series – Each
Shop
Camshaft – Big Mutha’ Thumpr – Hydraulic Roller – Lift 0.573 / 0.558 in – Duration 291 / 311 – 109 LSA – 2600 / 6800 RPM – GM LS-Series – Each
