COMP Cams K11-600-8 Thumpr 227/241 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454

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

• High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.
• 1,900-5,500 RPM Operating Range
• 227/241 Duration at .050". 107 Degree Lobe Separation Angle. 0.547"/0.53" Valve Lift
• 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