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Product Description:
TPIS ZL9 Hydraulic Roller LS Camshaft
This ZL9 cam was designed to conform to the strict rules of Grand Am competition. With a slight lope at idle, it is ground on a 110 degree lobe separation for great low end torque, and with 209/223 duration, it runs hard to 6800 rpm. It is an excellent choice for 5.7L & 6.0L cars and trucks. Drives like a stock cam. The .568"/.584" lift numbers require springs. 40-50 hp over stock cam.
