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You are here: Marine Parts » Shop All Marine Products » Engines, Sterndrives, and Transmissions » Long Block Marine Engines » Remanufactured Long Block's » GM Marine Longblock's (MerCruiser, Volvo, Etc) » Rebuilt GM Marine Long Block Engines - 4 Cylinder

Rebuilt GM Marine Long Block Engines - 4 Cylinder

3 Liter Engine Replacement Options.......Read More regarding the issue with the lack of good re-buildable 2.5L and 3.0L marine longblock cores. This issue in combination with the attractive pricing offered by General Motors on the new 3.0L Marine Longblock engines has really re-shaped the way 4 Cylinder Repower Projects are being handled today.

GM 4-Cylinder Engines

Long Block

Years
Approx.
Description HP Liter/
CID
Cyls Block
Casting
Numbers
Standard
Rotation
Reverse
Rotation
87 & Up 1 piece rear main seal. Electronic ignition. 130 & 140 3.0L
181 CID
L-4 Various - 613, 080 4752 --
76-89 Mercruiser 3.7L 470 Longblock. 170 & 190 3.7L
224 CID
L-4 080 ME224LA --

GM153LA --
GM163LA --
GM181LA --
GM181LB --
GM181LC --
GM181LD --
-- --
-- --
-- --
-- --
-- --
-- --
SGM153LA --
SGM163LA --
SGM181LA --
SGM181LB --
SGM181LC --
SGM181LD --

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