K Kits vary in their contents, but generally contain a camshaft, a set of lifters, valve springs, retainers, locks, valve seals, timing set, decals and instructions. Check description for more accurate listing of kit contents.
Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note. Best with aftermarket converters and more rear gear.
Perfect choice for muscle cars and street rods - Three unique cam designs: Thumpr, Mutha' Thumpr and Big Mutha' Thumpr deliver excellent horsepower gains and broad torque curve.
Fits Chevrolet 396-454 Mark IV Big Block
Made in USA
Description
High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle. K11-600-8 contains the following: 11-600-8 Thumpr 227/241 Hydraulic Roller Cam for Chevrolet Big Block 396-454, 854-16 Retro-Fit Hydraulic Roller Lifter Set for 396-454 Chevrolet Big Block, 2110 Magnum Double Row Timing Set for '65-'91 396-454 Chevrolet Big Block, 924-16 Performance Street 1.509" OD Spring; 1.900" Installed Height; 16 Springs, 612-16 Set of 16 - 10 Degree, 3/8", Single Groove Locks w/ Lash Cap Recess, 741-16 10 Degree Superlock Steel Retainer Set of 16 for 1.500"-1.550" OD Valve Spring, 505-16 Set of 16 PTFE Valve Seals for .530" Guide Size, 3/8" Valve Stem