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PPT offers Marine Long Block Engines, Marine Longblocks, New 4.3 Liter Marine Long Block Engines and Rebuilt Mercruiser Long Blocks  
 

Replacing your 4.3L Marine Engine Long Block

Marine Long Block Engines, Marine Longblocks, New 4.3 Liter Marine Long Block Engines and Rebuilt Mercruiser Long Blocks


Replacing your 1986-1996 4.3L
There is now a NEW GM direct replacement engine for the older 1986-1992 Mercruiser, OMC, and Volvo. It can be easily identified by the 12 bolt pattern intake manifold. This is a non-Vortec engine, non-balance shaft design, but with roller camshaft, fuel pump pad, and 1 piece rear main seal. The long block engines includes no intake, flywheel, balancer, or water pump.

Replacing your 1996-up 4.3L
In 1996 GM went with Vortec engine. It is easily recognized by the 8 bolt pattern intake manifold as compared to the pre-1996 with a 12 bolt pattern intake manifold. The 1996 & up 4.3L engines must also use an electric fuel pump. The 4.3L engine is offered with and without an intake manifold. The engine with the manifold is available with a 4 BBL or a 2 BBL intake and also includes the water pump.

4.3L Longblock w/o Intake


Partial Engine Packages (Longblock + Carburetor + Ignition)

4.3L Power Packages 2 Bbl Carb
4.3L Power Packages 4 Bbl Carb


Technical Tips Information:
Installation Guidelines
Overall Re-Powering Options
Automotive vs. Marine
3.0L Engines
4.3L Engines
5.0L/5.7L Engines
7.4L/8.2L Engines