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GM New Marine Engines

GM 181CI (3.0L) BASE ENGINE 1PC REAR SEAL
Part #GM30B
- Your Price $1,995.00
• Factory Warranty
• Replaces 1986 - 2004 3.0 Liter GM Marine Base Engines
Marine New 1 piece seal 3.0 Liter 140 hp GM base engine to replace any older 2 piece seal OMC Stringer, Cobra, Volvo & MerCruiser Model Stern Drives.
• No trade or core required on new marine engines.
• A high-flow cylinder head with straighter

Factory Warranty:
• Replaces 1986 - 2004 3.0 Litre GM Marine Base Engines
• Easy to install a New 1 piece seal 3.0 Litre 140 hp GM base engine to replace any older 2 piece seal OMC Stringer, Cobra, Volvo & MerCruiser Model Stern Drives.
• No trade or core required on new marine engines.
• A high-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower.
• Cylinder heads feature sintered powder metal exhaust valve seat inserts for improved durability.
• State-of-the-art coolant pump seal uses a combination of advanced materials to provide superb sealing action under extreme conditions.
• Nodular iron crankshaft for increased strength and engine life.
• High Energy Ignition (HEI) distributor and coil are shipped on the engine as standard equipment.
• Camshaft is specifically designed for marine duty cycles and optimized for maximum performance.
• High-silicon cast aluminum pistons ensure optimum performance for the life of the engine.
• Common rear face on most GM Powertrain marine engines for easy hookup with housing.
• Cylinder case has brass water jacket core support plugs for resistance to corrosion.

Specifications:
• Type: 3.0L I-4
• Displacement: 181 cid (2966.59 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.2:1
• Valve Configuration: Pushrod Actuated
• Overhead Valves
(2 valves per cylinder)
• Assembly Site: Toluca, Mexico
• Valve Lifters: Hydraulic Flat Tappet
• Firing Order: 1 - 3 - 4 - 2
• Bore x Stroke: 101.60 x 91.44 mm
• Bore Center: 112.26 mm
• Bore Area: 324.29 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 143 hp (107 kW) @ 4800 rpm (LMX)
• 140 hp (104 kW) @ 4800 rpm (LW6)
• Torque: 178 lb-ft (241 Nm) @ 3600 rpm (LMX)
• 177 lb-ft (240 Nm) @ 3600 rpm (LW6)
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 363 lb (165 kg)

Materials:
• Block: Cast Iron
• Cylinder head: Cast Iron with exhaust valve seat inserts
• Intake manifold: Customer Supplied
• Exhaust manifold: Customer Supplied
• Main bearing caps: 2 -Bolt Cast Iron
• Crankshaft: Nodular Cast Iron
• Camshaft: Marine Profile
• Connecting rods: Powdered Metal
• Flywheel not included

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice.

...........................................................................................................................

GM 262CI (4.3L) BASE ENGINE 1PC REAR SEAL
Part #GM43B
- Your Price $1,995.00
• Factory Warranty
• 4.3 Liter (262 CID) Marine Long Block 222hp with (4bbl)
• Also can be used with (2bbl) @ 190hp
• Direct Replaces: 1996 and up
• Replaces: 1986 - 1992
This new replacement engine is available for the direct replacement of older OMC Stringer, Cobra, MerCruiser and Volvo Model Stern Drives This motor is a 1 piece rear main seal, Vortec, balance shaft design.

VortecFactory Warranty:
•4.3 Litre (262 CID) Marine Long Block 222hp with (4bbl)
• Also can be used with (2bbl) @ 190hp
• Direct Replaces: 1996 and up
• Replaces: 1986 - 1992
• This new replacement engine is available for the direct replacement of older OMC Stringer, Cobra, MerCruiser and Volvo Model Stern Drives This motor is a 1 piece rear main seal, Vortec, balance shaft design with a roller cam shaft, new style center bolt valve covers that now replaces the old stlye perimeter bolt valve covers: fuel pump is optional.

Features & Benefits:
• NEW: Cracked powder metal connecting rod (interim 2006) to more accurately position the cap to the rod during engine assembly. A high-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower.
• High-silicon cast aluminum pistons offer excellent durability.
• Roller valve lifters, roller rocker arms and true roller timing chain for reduced friction and improved performance.
• Composite rocker arm covers and front cover for reduced noise and resistance to corrosion.
• Cylinder case has brass water jacket core support plugs for resistance to corrosion.
• Nodular iron crankshaft has rolled fillets for increased strength.

Available Options:
• A 2bbl or 4bbl intake manifold is available
• HEI distributors and coils are available in kit form
• 12-3/4" or 14" flywheel
• Electric fuel pump kit

Specifications:
• Type:4.3L V6 Gen 1e
• Displacement: 262cid (4300cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 Valves per cylinder)
• Assembly Site:Romulus, Michigan
• Valve Lifters:Hydraulic Roller
• Firing Order:1-6-5-4-3-2
• Bore x Stroke:101.60 x 88.39 mm
• Bore Center:111.76 mm
• Bore Area:486.44 cm/2
• Fuel Type:Regular Unleaded
• Horsepower:226hp (169kw)@ 4800 rpm
• Torgue:268 lb-ft(363 nm) @ 4000 rpm
• Shipping Weight:449lb (203kg)

Materials:
• Block:Cast Iron GM232-M
• Cylinder Head:Cast Iron
• Main Bearing Caps:Nodular Iron
• Crankshaft:Nodular Iron
• Camshaft:5150 Steel Billet
• Connecting Rods:Powdered Metal

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice.

...........................................................................................................................

GM 305CI (5.0L) BASE ENGINE 1PC REAR SEAL
Part #GM50B - Price $2,995.00

• 5.0 Litre (305 CID) GM Marine Base Engine 260hp @
• 5000 RPM / 305 lb-ft @ 3600 RPM (MPI)
• Also can be used with (2bbl or 4bbl)
• Replaces 1996 - 2007

1 piece rear main seal, 2 bolt main, Vortec heads and Hydraulic roller cam Comes with: Oil pan, Timing Cover and Valve covers.

(8 bolt pattern style for your Intake manifold) (Oppoiste Rotation Available with Ignition)

Specifications:
• Type: 5.0L V-8 Gen 1e Small Block
• Displacement: 305 cid (4999 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 95 X 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 567.06 cm2
• Fuel System: Port Fuel Injection
• Fuel Type: Regular Unleaded
• Horsepower: 253 hp (189 kW) @ 4800 rpm
• Torque: 302 lb-ft (409 Nm) @ 3800 rpm

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

...........................................................................................................................

GM 350CI (5.7L) BASE ENGINE 2PC REAR SEAL
Part #GM57B - Price $2,495.00

• 5.7 Litre V8 Gen 1e
• (350 CID) GM Marine Base Engine 292hp @ 4800 RPM / 370 lb-ft @ 3200 RPM

Actual Power May vary depending on OEM calibration and application

Featured and Benefits:
• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower
• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem seals for reduced oil consumption
• Roller valve lifters for reduced friction and improved performance (All 1pc style engines)
• Composite front timing cover for noise reduction and corrosion protection (Gen +)
• Cylinder head gaskets have stainless steel core for corrosion resistance
• Common rear face on most GM Powertrain marine engines for easy hookup with housing
• All Base engines include valve covers, oil pan and timing covers only.

Available Options:
• 2bbl and 4bbl Intake Manifolds
• 12 3/4" and 14" Flywheels
• HEI distributors and coils are available in kit form.

Specifications:
• Type: 5.7L V-8 Gen 1e Small Block
• Displacement: 350 cid (5736 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 101.60 x 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 648.59 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 292 hp ( 218 kW ) @ 4800 rpm
• Torque: 370 lb-ft ( 502 Nm ) @ 3200 rpm
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 432 lb (196 kg)
• Emissions Controls: Positive Crankcase Ventilation

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication.

...........................................................................................................................

GM 350CI (5.7L) BASE ENGINE 1PC REAR SEAL
Part #GM57B - Price $2,695.00

• 5.7 Litre V8 Gen 1e
• (350 CID) GM Marine Base Engine 292hp @ 4800 RPM / 370 lb-ft @ 3200 RPM

Actual Power May vary depending on OEM calibration and application

Featured and Benefits:
• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower
• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem seals for reduced oil consumption
• Roller valve lifters for reduced friction and improved performance (All 1pc style engines)
• Composite front timing cover for noise reduction and corrosion protection (Gen +)
• Cylinder head gaskets have stainless steel core for corrosion resistance
• Common rear face on most GM Powertrain marine engines for easy hookup with housing
• All Base engines include valve covers, oil pan and timing covers only.

Available Options:
• 2bbl and 4bbl Intake Manifolds
• 12 3/4" and 14" Flywheels
• HEI distributors and coils are available in kit form.

Specifications:
• Type: 5.7L V-8 Gen 1e Small Block
• Displacement: 350 cid (5736 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 101.60 x 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 648.59 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 292 hp ( 218 kW ) @ 4800 rpm
• Torque: 370 lb-ft ( 502 Nm ) @ 3200 rpm
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 432 lb (196 kg)
• Emissions Controls: Positive Crankcase Ventilation

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication.

...........................................................................................................................

GM 350CI (5.7L) BASE ENGINE 1PC REAR SEAL
Part #GM57B - Price $2,795.00
• 5.7 Litre V8 Gen 1e
• (350 CID) GM Marine Base Engine 292hp @
• 4800 RPM / 370 lb-ft @ 3200 RPM

Actual Power May vary depending on OEM calibration and application

Featured and Benefits:
• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower
• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem seals for reduced oil consumption
• Roller valve lifters for reduced friction and improved performance (All 1pc style engines)
• Composite front timing cover for noise reduction and corrosion protection (Gen +)
• Cylinder head gaskets have stainless steel core for corrosion resistance
• Common rear face on most GM Powertrain marine engines for easy hookup with housing
• All Base engines include valve covers, oil pan and timing covers only.

Available Options:
• 2bbl and 4bbl Intake Manifolds
• 12 3/4" and 14" Flywheels
• HEI distributors and coils are available in kit form.

Specifications:
• Type: 5.7L V-8 Gen 1e Small Block
• Displacement: 350 cid (5736 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 101.60 x 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 648.59 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 292 hp ( 218 kW ) @ 4800 rpm
• Torque: 370 lb-ft ( 502 Nm ) @ 3200 rpm
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 432 lb (196 kg)
• Emissions Controls: Positive Crankcase Ventilation

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication.

...........................................................................................................................

GM 350CI (5.7L) BASE ENGINE 1PC REAR SEAL RH Rotation
Part #GM57B - Price $2,995.00

• 5.7 Litre V8 Gen 1e
• (350 CID) GM Marine Base Engine 292hp @
• 4800 RPM / 370 lb-ft @ 3200 RPM

Actual Power May vary depending on OEM calibration and application

Featured and Benefits:
• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower
• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve • stem seals for reduced oil consumption
• Roller valve lifters for reduced friction and improved performance (All 1pc style engines)
• Composite front timing cover for noise reduction and corrosion protection (Gen +)
• Cylinder head gaskets have stainless steel core for corrosion resistance
• Common rear face on most GM Powertrain marine engines for easy hookup with housing
• All Base engines include valve covers, oil pan and timing covers only.

Available Options:
• 2bbl and 4bbl Intake Manifolds
• 12 3/4" and 14" Flywheels
• HEI distributors and coils are available in kit form.

Specifications:
• Type: 5.7L V-8 Gen 1e Small Block
• Displacement: 350 cid (5736 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 101.60 x 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 648.59 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 292 hp ( 218 kW ) @ 4800 rpm
• Torque: 370 lb-ft ( 502 Nm ) @ 3200 rpm
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 432 lb (196 kg)
• Emissions Controls: Positive Crankcase Ventilation

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication.

...........................................................................................................................

GM 350CI (5.7L) BASE ENGINE 1PC REAR SEAL RH Rotation
Part #GM57B - Price $3,495.00
• 5.7 Litre V8 Gen 1e
• (350 CID) GM Marine Base Engine 292hp @
• 4800 RPM / 370 lb-ft @ 3200 RPM

Actual Power May vary depending on OEM calibration and application

Featured and Benefits:
• High-flow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower
• Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem seals for reduced oil consumption
• Roller valve lifters for reduced friction and improved performance (All 1pc style engines)
• Composite front timing cover for noise reduction and corrosion protection (Gen +)
• Cylinder head gaskets have stainless steel core for corrosion resistance
• Common rear face on most GM Powertrain marine engines for easy hookup with housing
• All Base engines include valve covers, oil pan and timing covers only.

Available Options:
• 2bbl and 4bbl Intake Manifolds
• 12 3/4" and 14" Flywheels
• HEI distributors and coils are available in kit form.

Specifications:
• Type: 5.7L V-8 Gen 1e Small Block
• Displacement: 350 cid (5736 cc)
• Engine Orientation: Longitudinal
• Compression Ratio: 9.4:1
• Valve Configuration: Overhead Valves (2 valves per cylinder)
• Valve Lifters: Hydraulic Roller
• Firing Order: 1-8-4-3-6-5-7-2
• Bore x Stroke: 101.60 x 88.39 mm
• Bore Center: 111.76 mm
• Bore Area: 648.59 cm²
• Fuel Type: Regular Unleaded
• Horsepower: 292 hp ( 218 kW ) @ 4800 rpm
• Torque: 370 lb-ft ( 502 Nm ) @ 3200 rpm
• Actual power levels may vary depending on OEM calibration and application.
• Shipping Weight: 432 lb (196 kg)
• Emissions Controls: Positive Crankcase Ventilation

Materials:
• Block: Cast Iron GM232-M
• Cylinder Head: Cast Iron
• Exhaust Manifold: None
• Main Bearing Caps: Cast Iron GM232-M
• Crankshaft: Nodular Iron
• Camshaft: 5150 Steel Billet
• Connecting Rods: Forged - SAE 1141

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 
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