Roller Cam Thrust Button at cherylmparro blog

Roller Cam Thrust Button. We’ve never actually tested the negative results, but it is possible to see 20 degrees of retarded timing at higher engine speeds from a roller cam with no button or thrust plate. cam walk of more than 0.010 inch induces retarding of the ignition timing.

Power Products, Aluminum Cam Thrust Button, Chev SB, .600 Competition
from www.competitionproducts.com

We’ve never actually tested the negative results, but it is possible to see 20 degrees of retarded timing at higher engine speeds from a roller cam with no button or thrust plate. 14k views 7 years ago. the first step is to determine just how much camshaft thrust your engine has.

Power Products, Aluminum Cam Thrust Button, Chev SB, .600 Competition

Roller Cam Thrust Button camshaft endplay is adjusted with a thrust “button,” which rides on the front side of the camshaft. camshaft endplay is adjusted with a thrust “button,” which rides on the front side of the camshaft. roller camshafts require a thrust button to control the fore and aft movement of the cam. Camshaft thrust button, roller style, steel, 0.690 in.