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The COMP Cams Thumpr 227/241 hydraulic flat cam is a high-performance street grind developed for Chrysler 426 HEMI applications. It produces a choppy, thumping idle and prefers a 2000+ stall converter with matching gears, though a stock converter may be acceptable. Stock springs cannot be used. The Thumpr profile emphasizes an aggressive street sound and stronger midrange behavior for HEMI builds.
COMP Cams Camshaft Crh 279T H-107 T Thu
