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GM Power Marine Engines:
Click on the part number to
check pricing or place an order.
New
Vortec 4300 4.3L V6 Long Block
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4.3 Liter 262 CID
223 HP @ 4800 RPM / 267 lb. ft. @ 2800 (4bbl)
Fits 1986-2002 OMC / MerCruiser / Volvo
MUST USE ELECTRIC FUEL PUMP
Coupler must be changed and an electric fuel pump must be
used. 4bbl carburetor must have electric choke. 1 -piece rear main seal.
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Part
No. |
Description |
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620-43235V |
Vortec 4.3L V6, 4 Barrel Version |
| 620-432352Y |
Vortec 4.3L V6, 2 Barrel Version |
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Brand
New GM Marine Chevrolet 350 V8 Long Block Engine
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260 HP @ 4400 RPM / 350 lb. ft. @ 3000 RPM (4bbl)
2-piece seal, 4-bolt main and mechanical fuel pump pad. NO - intake, flywheel, balancer or water
pump. (12-bolt pattern style for your intake manifold)
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Part
No. |
Description |
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620-572602P |
260 HP 350 CID 5.7 Liter
Replaces 1967 thru 1985
260 HP @ 4400 RPM / 350 lb. ft. @ 3200 RPM (4bbl)
1-piece seal, 4-bolt main, MUST use electric fuel pump.
no - intake, flywheel, balancer or water
pump.
(12-bolt pattern style for your intake manifold) |
| 620-572701P |
260 HP 350 CID 5.7 Liter Replaces 1986 thru 1995 |
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Vortec
5700 New GM Marine 350 Vortec 295 Horsepower Small Block Long Block
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5.7 Liter (350 CID)
295 HP @ 5000 RPM / 355 lb. ft. @3600 RPM (PFI)
1-piece seal, 4-bolt main, new style Vortec heads. Needs electric
fuel pump. (8-bolt pattern style for your intake manifold).
Note: This motor has a plastic timing cover which requires
a special balancer. This special balancer is available upon request.
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Part
No. |
Description |
| 620-57320V |
1998 thru 2002 295 HP GM 350 V8 Long Block |
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Brand
New GM Marine 454 V8 392 Horsepower Long Block
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392 HP @ 5200 RPM / 447 lb. ft. @ 4000 RPM (PFI)
1-piece seal, 4-bolt main, rectangular port, roller cam, 8 qt. oil
pan, Must use an electric fuel pump. NO -
intake, flywheel, or water pump.
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Part
No. |
Description |
| 620-454380 |
392 HP 7.4 Liter (454 CID) |
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Brand
New GM Marine 502 V8 Long Block
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415 HP @ 5000 RPM / 504 lb. ft. @ 3800 (4bbl)
1-piece seal, 4-bolt main, rectangular port,
roller cam, 8 qt. oil pan, must use electric fuel
pump, No - intake, flywheel, or water pump.
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Part
No. |
Description |
| 620-823801P |
415 HP 8.2 Liter (502 CID) |
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New
GM Marine 454 - 305 Horsepower Long Block Engine
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305 HP @ 4400 RPM / 435 lb. ft. @ 3200
RPM (PFI)
1987-2001, 1-piece seal, 4-bolt main, oval
port, roller cam, 8 qt. oil pan, must use electric
fuel pump, No - intake, flywheel, or water pump.
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Vortec
8100 New GM Marine 8.3 Litre Vortec 496 CID 420 Horsepower
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375 HP @ 4600 RPM / 490 lb. ft. @ 4000 RPM (PFI)
These new generation Vortec big block engines
come with PFI intake, flywheel, water pump, marine dampner, ignition coils, crank sensor, cam
sensor and platinum tipped spark plugs.
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Vortec
HP 8100 New GM Marine 8.3 Litre Vortec 496 CID 420 Horsepower
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420 HP @ 5000 RPM / 505 lb. ft. @ 4000 RPM (PFI)
These new generation Vortec big block engines come with PFI intake, flywheel, water pump,
marine dampner, ignition coils, crank sensor, cam
sensor and platinum tipped spark plugs,
performance camshaft and forged steel crankshaft.
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Part
No. |
Description |
| 620-81496HO |
496 CID 8.1 Liter 420 HP |
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New
GM High Performance Marine Base Engines
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 GM Std Deck Mark VI 502 base engine 4.47 x 4.0, 9 to 1
compression ratio GM forged crank, rods and pistons, Crane hydraulic
roller cam, springs, lifters, push rods, and rocker arms. GM Heads
Ported with 2.250 S/S Intake and Inconel Exhaust Valves, 8 qt. oil
pan, flywheel and dampner.
500 HP @ 5200 RPM / 575 ft/lbs of torque @ 4800 RPM
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Part
No. |
Description |
| 620-500HP |
HP500 Replacement Engine |
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Inboard
Performance Engines
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New GM high performance marine base engines are hand
assembled and competition blueprinted.
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Part
No. |
Description |
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620-510STD |
500+ HP @ 5400 RPM 570 Foot Lbs. of torque @ 4200 RPM |
| 620-510HO |
Optional - H.P. Wiesco forged blower pistons 8 to 1 compression with Fel-Pro Marine S/S head gaskets
600+ HP @ 5400 RPM, 5 pounds of boost 650 Foot Lbs. of torque @ 4000 RPM
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GM Standard Deck 510 CI 4.50"x4.00" 9 to 1 compression with hydraulic roller
cam, forged crank, rods and pistons. Merlin heads 2.250 S/S intake valves and Inconel
exhaust valves. Eight quart oil pan, flywheel and damper.
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| 620-540STD |
600+ HP @ 5400 RPM 650 Foot Lbs. of torque @ 4000 RPM |
| 620-540HO |
Optional - H.P. Wiesco forged blower pistons 8 to 1 compression with Fel-Pro Marine S/S head gaskets
700+ HP @ 5400 RPM 5 pounds of boost 750 Foot Lbs. of torque @ 4000 RPM |
| GM Standard Deck 540 CI 4.50"x4.25" 9 to 1 compression with hydraulic roller
cam, forged crank, rods and pistons. Merlin heads 2.250 S/S intake valves and Inconel
exhaust valves. Eight quart oil pan, flywheel and damper.
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Inboard
Performance Engines
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GM Tall Deck 572 CID 4.50"x4.50" 9 to 1 compression with hydraulic roller cam,
forged crank, rods and pistons. Merlin heads 2.250
S/S intake valves and Inconel exhaust valves. 14
quart oil pan, flywheel and fluid damper.
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Part
No. |
Description |
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620-572STD |
675+ HP @ 5400 RPM 700 Foot Lbs. of torque @ 4000 RPM |
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620-572HO |
Optional - H.P. Wiesco forged blower pistons 8 to 1 compression with
Fel-Pro Marine S/S head gaskets 850+ HP @ 5400 RPM 7 pounds of boost 870 Foot Lbs. of torque @ 4000 RPM |
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