Remanufactured 4.3L V6 GM Mercruiser Marine Longblock Engines
Where Do I Find My 6 Cylinder Block Casting Number?
4.3L V6 Marine Longblocks can be a little more challenging when attempting to verify the correct model due to a variety of different block codes and balance shaft options. This link will help guide you through the correct selection process when identifying your V6 Marine Engine..How to Select the Proper V6 Marine Longblock Engine
GM 6-Cylinder Engines |
Long Block |
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|---|---|---|---|---|---|---|---|
| Years Approx. |
Description | HP | Liter/ CID |
Cyls | Block Casting Numbers |
Standard Rotation |
Reverse Rotation |
| 80-84 | Valve covers bolt around perimeter. | 175 | 3.8L 229 CID |
V-6 | 594 | GM229LA | -- |
| 70-80 | In-line 6 cylinder engine. | 150 & 165 | 4.1L 250 CID |
L-6 | 855, 675, 127, 466, 575 | GM250LA | -- |
| 85-86 | 2 piece rear main seal. This is the early style block. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 177 | GM262LA | GM262RA |
| 86-88 | 1 piece rear main seal. Non roller cam engine. Valve cover bolts down center. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 553, 683 | GM262LB | GM262RB |
| 87-92 | 1 piece rear main seal. Roller cam engine. Has 2 accessory holes on front of head. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 011, 867, 611 | GM262LC (Not Available) | GM262RC (Not Available) |
| 87-92 | Roller cam engine. Heads have 3 bolt hole accessory mounting on the front of each head. Head casting numbers are 768, 103, 066, 996 and 476. With fuel pump hole. 12 bolt intake. This engine can be used to replace the GM262LC. | 175 & 205 | 4.3L 262 CID |
V-6 | 011, 867 | GM262LH | -- |
| 92-97 | Roller cam engine with balance shaft. Has a 10 bolt front timing cover. No fuel pump hole. Balance shaft casting numbers must be 10224542 or 10172748. Must check balance shaft casting number. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 196, 534, 535, 359 | GM262LD (Not Available) | -- |
| 95-99 | Roller cam engine with balance shaft. Has 6 bolt front timing cover and 14 bolt oil pan rail. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 196, 534, 535, 359 | GM262LE (Not Available) | -- |
| 92-96 | Roller cam engine with wide intake. Head casting numbers 064, 209 or 181. last three digits. 4 bolt lifter hold down. No fuel pump hole, no balance shaft. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 756, 073, 061 | GM262LF | -- |
| 96-99 | Roller cam engine with balance shaft. Balance shaft casting 10224542. Has 6 bolt timing cover and 10 bolt oil pan rail. Head casting number 772 and 140 last three digits. 8 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 090 | GM262LG | -- |
| 92-99 | Roller cam engine with balance shaft. Balance shaft casting numbers must be 12550286, 10224541. Must have 10 bolt timing cover and 14 bolt oil pan Without fuel pump hole. 12 bolt intake. | 175 & 205 | 4.3L 262 CID |
V-6 | 196, 534, 359, 535 | GM262LI | -- |
| 96-09 | Roller cam with balance shaft. Has roller rockers. Block has metric mounts. 6 bolt timing cover. head casting should be 113. 8 bolt intake. | 200 & 230 | 4.3L 262 CID |
V-6 | 090M | GM262LJ | -- |
| 63-73 | 7/16 fly wheel bolts. 2 bolt starter pad. | 200 | 4.8L 292 CID |
L-6 | 258, 404, 659, 970 | GM292LA | GM292RA |
| 63-73 | 1/2 fly wheel bolts. 3 bolt starter pad. | 200 | 4.8L 292 CID |
L-6 | GM292LB | -- | |