4.3L GM Marine Vortec Long Block 

4.3L GM Marine Vortec Long Block 

Replacing your 1996-up Replacing your 1996-up 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.

REMAN ENGINE.

Specifications:

V6
Remanufactured Long Block
Left Hand (standard) Rotation only
Roller Cam
Electric Fuel Pump

Materials:

Block: Cast Iron
Cylinder head: Cast Iron with exhaust valve seat inserts
Intake manifold: Customer Supplied
Exhaust manifold: Customer Supplied
Main bearing caps: 2 -Bolt Cast Iron
Crankshaft: Nodular Cast Iron
Camshaft: Marine Profile

OEM Spec