How to Adjust the Lifters on a Mopar 360 by Bobby R. Goldsmith The Mopar 360 small block engine offers a lot of power for its size, and with the installation of a high-performance camshaft, the engine can produce increased amounts of torque and horsepower. Roller Rocker Arms is rated 4.0 out of 5 by 1. Rated 4 out of 5 by MakoVette from Work Properly, but mind pushrod length on the 117CU kit These worked exactly as expected, however be advised that the "Perfect Fit" push rods in the 117"CI engine kit are not so perfect when installing these rockers: The rods in the 117" kit are short to the point ... Take the roller rockers off and try a standard set. My similar valvetrain sounds like a sewing machine. The Comp rollers rockers are the culprit. No matter how I adjust them, they are noisy. With a standard stamper rocker the noise dissappears. I just live with it now.