Sierra-Cylinder Head Assembly GM 2.5-3.0L #18-4489

Description

Sierra 18-4489 Cylinder Heads

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.

Replaces: MerCruiser 936-5544, 936-810840/986767
Fits: 2.5L/3.0L GM (1968-95) (non MerCruiser LX models) (1968-95)

OEM Interchange:

MERCURY MARINE: 936-5544

MERCURY MARINE: 936-810840

MERCURY MARINE: 936-986767

Cylinder Head: Chevrolet

Sierra Cylinder Head Assembly, GM 2.5-3.0L #18-4489

Normalized SKU: 184489

UPC Code: 808282228781