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 | -- |