Easily modify your heads for 1.6 ratio rockers with this handy pushrod slotting tool. Simply use a 5/16 inch drill bit to correctly lengthen the pushrod slot with precision. Recommended usage is one tool for each set of heads. Sold individually.
Product Details:

• Engine Push Rod Slotting Tool
• Modifies Small Block Chevy Cylinder Heads for 1.6 Ratio Rocker Arms
• Designed to Elongate The Pushrod Slot in The Cylinder Head
• Uses a Drill and a 5/16 Inch Drill Bit - Not Included - To Elongate Pushrod Slots
• Sold As Each