18-4485 - Cylinder Head Assembly 5.7L
18-4485 CYLINDER HEAD ASSEMBLY
Replaces: MerCruiser 938-883490 1
Fits: 5.7L V-8 GM (1987-95) with press in rocker arm studs with 12 intake manifold mounting bolts- (4 inside intake manifold bolts at 23 degrees), center mount valve covers
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 is equivalent to parts:
- 9-59004 Mallory Marine