Description
This item is brand-new, factory sealed.
COMP Cams K11-602-4 Thumpr 243/257 Hydraulic Flat Cam K-Kit for Chevrolet Big Block 396-454
- Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
- 2,300-6,200 RPM Operating Range
- 243/257 Duration at .050″. 107 Degree Lobe Separation Angle. 0.522″/0.507″ 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, assembly lubricant, 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
- Material: ?Metal
- Brand: ?Comp Cams
- Item dimensions L x W x H: ?25.2 x 10.2 x 5.1 inches
- Included Components: ?Camshaft, Lifters, Timing Chain Set, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Assembly Lube, Instructions
- Number of Pieces: ?1
- Manufacturer: ?COMP Cams
- UPC: ?036584182269
- Global Trade Identification Number: ?00036584182269
- Model: ?K11-602-4
- Item Weight: ?26.2 pounds
- Product Dimensions: ?25.2 x 10.2 x 5.1 inches
- Item model number: ?K11-602-4
- Manufacturer Part Number: ?K11-602-4
- OEM Part Number: ?N
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. K11-602-4 contains the following: 11-602-4 Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454, 812-16 High Energy Hydraulic Flat Lifter Set for Chevrolet Small and 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
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