Sierra Cylinder Head Assembly OMC/Volvo/Merc 4.3L V6 Vortec (1996-Up)

All Sierra 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.

Replaces:
MerCruiser #938-827178 1, #938-824147

Replaces 4.3L Vortec V-6 (1996-Up) with screw in rocker arm studs (non-adjustable valve train), 8 intake manifold mounting bolts, center mount valve cover.

NOTE: Not for use with engines using factory roller rocker arms.