Comp Cams Big Mutha' Thumpr 243/257 Hydraulic Roller K-Kit For Oldsmobile 260-455 - K42-602-11
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions.
Fitment Notes - Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8
