18-4486 - Head Assembly, 5.7L
18-4486 CYLINDER HEAD ASSEMBLY
Replaces: 938-883297 1,938-803860T
Fits: 5.7L V-8 GM Vortec (1996-Up) with press in rocker arm studs with 8 intake manifold mounting bolts, composite valve cover
All cylinder heads are new castings and complete assemblies with new- stainless steel valves, hardened steel exhaust seats, valve springs, valve locks, and retainers. All GM cylinder heads utilize high performance screw-in rocker arm studs in place of factory press in rocker arm studs.
Sierra Marine Cyl Head Assy 5.7l Gm Vorte is equivalent to parts:
- 938803860T Mercury Marine
- 9-59005 Mallory Marine