Comp Cams 4710 Pushrod Slot Elongating Louis Tool
When switching factory Small Block Chevrolet heads over to 1.6 ratio rockers, the pushrod will rub on the bottom of the pushrod slot in the head. Long time cylinder head man Louis Cox designed this tool to simplify the modification needed in the situation.
• Tool allows use of hand drill and 5/16″ drill bit to elongate the pushrod slot in the precise location and size necessary
• Tool is designed to wear so a new one should be purchased for each set of heads