Remanufactured 5.0L, 5.7L, 7.4L, 8.2L V8 GM Marine Longblock Engines
Where Do I Find My V8 Block Casting Number?
Marine Longblock's have a variety of distinct characteristics that make them different from automotive longblocks. A few of these include the cylinder heads, valve seats, camshaft ,etc. PPT Marine Longblock offering includes only engines that are specifically designed for Marine Engine Applications.
GM 8-Cylinder Engine |
Long Block |
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|---|---|---|---|---|---|---|---|---|---|
| Years | Description | HP | Liter CID |
Cyls | Block Casting Numbers |
Standard Rotation |
Reverse Rotation |
||
| *Dipstick on port side of block. | |||||||||
| 76-85 | 2 Piece rear main seal. Valve covers bolt around perimeter. | 200 & 230 | 5.0L 305 CID |
V-8 | 909, 979, 776, 777, 371, 778 | GM305LA | GM305RA | GM305LAT* | Not Available |
| 85-87 | 1 piece rear main seal. Valve covers bolt around perimeter. Double check rear main seal. This is not a very common engine. | 200 & 230 | 5.0L 305 CID |
V-8 | 535, 551, 627, 058 | GM305LB | GM305RB | GM305LBT | GM305RBT |
| 87-95 | 1 piece rear main seal, flat tappet. Valve covers bolt down center. Has metal timing cover. | 200 & 230 | 5.0L 305 CID |
V-8 | 535, 551, 627, 058 | GM305LC | GM305RC | GM305LCT | Not Available |
| 87-99 | 1 piece rear main seal. Valve cover bolt down center. Roller cam engine. Has metal timing cover. | 200 & 230 | 5.0L 305 CID |
V-8 | 535, 551, 627, 058 | GM305LD | -- | GM305LDT | -- |
| 96-12 | 8 or 10 bolt timing cover. Timing cover is plastic. 12 bolt intake. R and R only. Can use the GM305LD and use tin timing cover. | 200 & 230 | 5.0L 305 CID |
V-8 | Not Available | -- | -- | -- | |
| 96-12 | 8 bolt intake. 10 bolt timing cover. | 200 & 230 | 5.0L 305 CID |
V-8 | 880, 878 | GM305LF | -- | GM305LFT | -- |
| 67-85 | 2 piece rear main seal. Valve covers bolt around perimeter. 2 bolt main. | 260 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LA | GM350RA | GM350LAT* | GM350RAT* |
| 67-85 | 2 piece rear main seal. Valve covers bolt around perimter. 4 bolt main. | 260 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LAF | GM350RAF | GM350LAFT* | GM350RAFT* |
| 67-85 | 2 piece rear main seal. Valve covers bolt around perimter. 4 bolt main. This is a cam upgrade. | 275 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LAFHO | -- | GM350LAFHOT* | -- |
| 86-87 | 1 piece rear main seal. Valve covers bolt around perimeter. 2 bolt main. | 260 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LB | GM350RB | GM350LBT | GM350RBT |
| 86-87 | 1 piece rear main seal. Valve covers bolt around perimeter. 4 bolt main. Double check the rear main seal. This is not a very common engine. | 260 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LBF | GM350RBF | GM350LBFT | GM350RBFT |
| 86-87 | 1 piece rear main seal. Valve covers bolt around perimeter. 4 bolt main. This is a cam upgrade. | 275 | 5.7L 350 CID |
V-8 | 245, 379, 010, 014, 678, 388, 618 | GM350LBFHO | -- | GM350LBFHOT | -- |
| 88-95 | 1 piece rear main seal. Valve covers bolt down center. 2 bolt main. Has metal timing cover. Flat tappet. Works for carbureted or fuel injected. 12 bolt intake. | 260 | 5.7L 350 CID |
V-8 | 548, 526, 148, 638 | GM350LC | GM350RC | GM350LCT | GM350RCT |
| 88-94 | 1 piece rear main seal. Valve covers bolt down center. 4 bolt main. Has a metal timing cover. | 260 | 5.7L 350 CID |
V-8 | 548, 526, 148, 638 | GM350LCF | GM350RCF | GM350LCFT | GM350RCFT |
| 88-94 | 1 piece rear main seal. Valve covers bolt down center. 4 bolt main. This is a cam upgrade. Has a metal timing cover. | 275 | 5.7L 350 CID |
V-8 | 548, 526, 148, 638 | GM350LCFHO | -- | GM350LCFHOT | -- |
| 88-94 | 1 piece rear main seal. Valve covers bolt down center. Roller cam engine. Has metal timing cover. Also available in dyno-tested version: GM350LDCD. | 260 | 5.7L 350 CID |
V-8 | 548, 526, 148, 638 | GM350LD | -- | GM350LDT | -- |
| 95-99 | 1 piece rear main seal. Roller cam. Timing cover plastic. 12 bolt intake. Mechanical fuel pump. Can use GM350LD and use tin timing cover. | 260 | 5.7L 350 CID |
V-8 | 880 | GM350LE | -- | GM350LET | -- |
| 95-99 | 1 piece rear main seal. Roller cam. Timing cover plastic. 12 bolt intake with electric fuel pump. | 260 | 5.7L 350 CID |
V-8 | 880 | GM350LEI | -- | GM350LEIT | -- |
| 96-05 | 1 piece rear main seal. Roller cam. Plastic timing cover. Has 8 bolt intake. Mechanical fuel pump. | 300 | 5.7L 350 CID |
V-8 | 880 | GM350LF | -- | GM350LFT | -- |
| 96-12 | 1 piece rear main seal. Roller cam. Plastic timing cover. Has 8 bolt intake. Electric fuel pump. | 300 | 5.7L 350 CID |
V-8 | 880 | GM350LFI | GM350RFI | GM350LFIT | -- |
| 73-90 | Mark IV 2 piece rear main seal. Oval intake port heads. Flat Tappet, 10 bolt timing cover. Built using 2 and 4 bolt main blocks. | 330 | 7.4L 454 CID |
V-8 | 289 | GM454LA | GM454RA | GM454LAT | GM454RAT |
| 73-90 | Mark IV 2 piece rear main seal. Round intake port heads. This engine is a direct substitute for the GM454LA Or GM454RA. Flat Tappet, 10 bolt timing cover, built using 2 and 4 bolt main blocks. | 330 | 7.4L 454 CID |
V-8 | 959, 445, 286, 775 | GM454LAS | GM454RAS | GM454LAST | GM454RAST |
| 73-90 | Mark IV 2 piece rear main seal. Flat Tappet, oval intake ports, 10 bolt timing cover, 4 bolt main. This engine is a cam upgrade. | 350 | 7.4L 454 CID |
V-8 | 289 | GM454LAHO | -- | GM454LAHOT | -- |
| 91-97 | Gen. V, 1 Piece rear main seal. Oval intake port heads. Flat tappet. 10 bolt timing cover, 4 bolt main. | 330 | 7.4L 454 CID |
V-8 | 182, 313 | GM454LB | GM454RB | GM454LBT | GM454RBT |
| 91-97 | Gen. V , 1 Piece rear main seal. 10 bolt timing cover. HO Series. Flat Tappet, oval port heads. 4 bolt main. | 360 | 7.4L 454 CID |
V-8 | 182 | GM454LC | -- | GM454LCT | -- |
| 96-99 | L29 Gen VI. 6 bolt timing cover, Roller cam engine, Electric Fuel Pump, Heart Shaped Comb. Chamber, No Exhaust Crossover, Electric fuel pump. | 310/330 | 7.4L 454 CID |
V-8 | 297, 313 | GM454LD | -- | GM454LDT | -- |
| -- | Mark IV, “Magnum”, 4 bolt main, Large Square Intake Ports, 10 bolt timing cover 2 piece rear main. Flat tappet. H.O. series. | 370 | 7.4L 454 CID |
V-8 | 286 | GM454LE | -- | GM454LET | -- |
| 91-97 | Gen V. 1 piece rear main seal. Steel crankshaft. Flat tappet. Electric fuel pump. Head casting 088. | 330 | 7.4L 454 CID |
V-8 | 182 | GM454LF | -- | GM454LFT | -- |
| 91-97 | Gen V. 1 piece rear main seal. 4 bolt main. Roller lifters. Head casting 088. Need customer's heads. | 330 | 7.4L 454 CID |
V-8 | 297 | GM454LG | -- | -- | -- |
| 96-03 | 1 piece rear main seal. Roller. 6 bolt timing cover. Head casting 156. | 330 | 7.4L 454 CID |
V-8 | 297 | GM454LH | -- | -- | -- |
| 70-76 | Oldsmobile engine. | 325 | 7.5L 455 CID |
V-8 | 297 | GM455LA | -- | -- | -- |
| 01-11 | Std, 375Hp, Non-HO, OHV, Fuel Injected, Block cast #8110, Head Cast #8162, Comes with Deep Square Sump Oil Pan, and Front Timing Cover Installed. Port Side Dipstick | 375 | 8.1L 496 CID |
V-8 | 8110 | GM4960CT | -- | -- | -- |
| 01-11 | High Output, 420Hp, OHV, Fuel Injected, Block Cast #8110, Head Cast #8162, Comes with Deep Square Sump Oil Pan, and Front Timing Cover Installed. Port Side Dipstick | 420 | 8.1L 496 CID |
V-8 | 8110 | GM4961CT | -- | -- | -- |