5.3 Semi-Hemi Water Cap, Center, with 6 screw holes. Requires 3ea per V-8 cyl head, 2ea per V-6 cyl head Use w/ #00Z-060 8-32 x3/8″ SHCS. (each)

Muscle Head Stage V: Program V3-P3-F12, 2.400″ x 1.900″ Valve dia, 102cc chambers. Std Copper intake valve seats, B5 Exhaust valve seats, .025″ Jr Hoops, 5/8″ Top Row & 9/16″ Bottom Row Head stud inserts. 2.600″ lifter spread, 12ø Exhaust Flange. (pr)