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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) » Remanufactured 5.0L, 5.7L, 7.4L, 8.2L V8 GM Marine Longblock Engines

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

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 -- -- --

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