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COMP Cams 54-602-11 Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV

4.8 (4) Write Review
Free shipping on orders over $29.99

$515.95

$ 99 .00 $99.00

In Stock

1.Size:Camshaft Only


2.:2


About this item

  • Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
  • 2,600-6,800 RPM Operating Range
  • 235/249 Duration at .050". 109 Degree Lobe Separation Angle
  • 0.573/0.558 Valve Lift
  • 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 GM LS GEN III/IV LS. 3-Bolt Configuration.
  • Made in USA


Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.


Terry Haight
Reviewed in the United States on January 21, 2025
As straight as an arrow. All lobes and journal measurements are exacted. This cam is the secret sauce. It accepts boost boost and more boost.
Michael D.
Reviewed in the United States on March 10, 2024
The media could not be loaded.
Dustin
Reviewed in the United States on December 21, 2017
Standard quality comp cam. Ground on a smaller base circle, will require longer pushrods. Came with a generic cam card as opposed to a Cam Doctor printout. Idle sounds nice, good chop, and is stable and easy to tune. However, that is about all this cam is good for- it made 380whp in a 11:1 compression LS1 with Fast92/92, 100mm MAF, aftermarket PRC 225 heads, 1 7/8 headers, and all supporting mods.
mark jacke
Reviewed in the United States on May 27, 2016
perfect