New GM 5.7L 350 V8 Marine Base Engine – Volvo Penta Replacement 1997-Present

The brand-new GM 5.7L 350 V8 Marine Base Engine is a reliable powerhouse that will improve the performance of your boat. It is a straight replacement for Volvo Penta engines from 1997 to now. Marine applications such as Mercruiser, OMC, Crusader, and Indmar configurations have proven the durability and power of this brand-new Vortec engine.

Key Specifications:

• Displacement: 350 cubic inches (5.7L / 5736 cc), with a 9.4:1 compression ratio for the best power and efficiency.
• Power Output: 292 horsepower at 4800 RPM and 370 lb-ft of torque at 3200 RPM (this depends on the calibration).
• The V8 small block has overhead valves, hydraulic roller lifters, and a cast iron block (GM232-M) for long-lasting marine use.
• Dimensions: 101.60 mm × 88.39 mm; shipping weight is about 432 lbs (196 kg).

Core Components Included

• A 5-quart marine oil pan, engine block, Vortec cylinder heads, center-bolt valve covers, and a timing cover.
• The harmonic balancer, circulation pump, spark plugs, and all the internal elements, such as the forged connecting rods and nodular iron crankshaft.
• Coated in black urethane paint that won’t rust for long-lasting protection.

Perfect Replacement Fit

-> Directly swaps into Volvo Penta 5.7L systems (1997-present), matching block casting #880 and Vortec heads for plug-and-play installation in sterndrives or inboards.​

-> Ideal for boat owners seeking a brand-new GM marine engine that mirrors OEM specs from leading brands, backed by warranties up to two years.​

-> Standard rotation (left-hand); opposite rotation available for twin setups.​

Highlights of Performance

• High-flow cylinder heads have straighter intake ports and a better valvetrain with roller lifters. This cuts down on friction and increases horsepower and durability.
• The silent timing chain and positive inlet valve stem seals cut down on noise and oil use. The gaskets are made of stainless steel that won’t corrode in tough saltwater situations.
• Supports port fuel injection with an electronic throttle body, standard unleaded fuel, and MEFI fuel shutoff for smooth operation.