ATK High Performance Engines Chevy Marine Crate Engine

ATK High Performance Engines Chevy Marine Crate Engines are complete assembled engines for replacing or upgrading the powerplant in a boat. They are built for marine duty, which means sustained high-load operation, heavy torque demands and constant exposure to moisture. They are also sold as marine crate engines, Chevy marine long blocks and replacement boat engines.

Key Features:

• Marine-specific build: ATK builds these engines for watercraft use, including corrosion-resistant marine gaskets and brass freeze plugs.
• Chevrolet-based engine families: The line is based on Chevrolet small block and big block engine designs.
• Quality components: Depending on the engine, builds can include remanufactured blocks, forged or nodular crankshafts, 4340 I-beam connecting rods, hypereutectic pistons, hydraulic roller camshafts and aluminum or cast iron cylinder heads.
• Assembled and ready to install: These are complete assembled engines that save the time and labor of sourcing and building an engine from scratch.
• Performance options: The line includes stock-replacement engines and higher-output stroker builds for owners who want more power.

Each engine in this line is built with attention to detail. The aim is to keep your boat out of the shop and on the water. Supporting parts such as the carburetor or fuel injection, intake manifold, distributor and water pump vary by engine, so check the specifications of the engine you choose.