Garage Sale - Comp Cams Big Mutha Thumpr Cam, Small Block Chevy, 2500-6400 RPM
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Please NOTE the following about this product:
- This product is discontinued.
Q & A
What's in the Box
Have you ever been to the races and heard how nasty the cams sound? Comp Cams has developed the Thumpr series of cams that give you every day drivability but have that nasty race engine sound. Pick the cam that fits your application, add a set of Comp Cam hydraulic lifters and you will be the talk of the town.
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Thumpr Application Chart (GIF)
282-126024 Specs (PDF)
This cam is garage sale priced because it has been test fit and returned. This one does not appear to have been run.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
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COMP Cams Pro Magnum Hydraulic Lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydraulic lifter, high rpm is limited by the improper position of the internal piston as the lifter inevitably “pumps up”. This improper location results in open valves and therefore leads to lost power or sometimes even engine failure. COMP Cams Pro Magnum Hydraulic Lifters offer a distinct advantage over standard high performance hydraulic lifters, especially in race applications where a hydraulic lifter must be used.
COMP Cams lifters are manufactured to the highest standards and when used with their oil additive will give you the best results.
Fits 289, 302, 351W, 351C, 351M, 400M, 429, and 460 c.i. engines.
ZDDP-enhanced Engine Break-In Lube Oil Additive from COMP Cams provides maximum engine life while also allowing it to reach its full performance potential. It does so by improving the surface mating of valve train components (especially flat tappets), rotating assembly, rod journals, piston rings, valve guides and other vital areas of the engine. This proprietary break-in lube formula includes the optimum amount of critical additives ZDDP (Zinc & Phosphorus), Molybdenum, detergents and high grade base oil.
The multi-viscosity, mineral-based COMP Cams Engine Break-In Oil Additive is fully-formulated and requires no additives or supplements. In addition, the oil is fully compatible with gasoline, methanol and high octane racing fuels.