Chevrolet Small Block Mockup Rocker Arm Only Fits 3/8'' Studs Pushrod Length Checker
These Proform pushrod length checkers help to prevent problems that may occur with incorrect-length pushrods installed. They have a mockup rocker arm that fits onto the cylinder head for taking accurate measurements.
PUSH ROD LENGTH CHECKER. CHEVY S/B ENGINES. 3/8' STUDS.