5.3 Semi-Hemi Water Cap, Right, with 4 screw holes. Requires 1 per cyl head. Use w/ #00Z-060 8-32 x3/8″ SHCS (each)

Muscle Head Stage V: Program V3-P2-F12, 2.450″ x 1.900″. 102cc chambers. Std Copper intake valve seats, B5 Exhaust valve seats, .025″ Hoops, 5/8″ & 9/16″ HS inserts. 2.600″ lifter spread, 12ø Exhaust Flange. (pair)