5.7L 350 Cylinder Head HP 69-86
Sierra Marine 18-4484HP Cylinder Head.
Cylinder head fits Chevy (GM) 5.7-Liter 1969-1986 CH350HA 5.7L Hybrid early style 350 Cylinder Head with 12-bolt intake manifold and perimeter mount valve covers.
Features:
Casting #'s: 336, 445, 487, 624, 882, 997
65cc combustion chamber, 176cc intake runner
1.94 intake valve, 1.50 exhaust valve
Early intake bolt pattern, perimeter valve cover bolt pattern