Small Block Chrysler Racer Brown camshafts
This may be of interest. How prod length changes valve lift. Very accurate test, done on a Pontiac V8, but the same principles apply to other engines. The factory correct length PR for this engine was 9.205". Notice the 0.042" difference in valve lift with 1.65 stamped rockers between PR lengths.
This may be of interest. How prod length changes valve lift. Very accurate test, done on a Pontiac V8, but the same principles apply to other engines. The factory correct length PR for this engine was 9.205". Notice the 0.042" difference in valve lift with 1.65 stamped rockers between PR lengths.