Engines and Components› Engines, Blocks and Components

ATK ENGINES

CHEV 350 MARINE ENGINE

$3,002.99

SKU: A040 DM03

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

Remanufactured ATK Marine Engine Block - Long, designed for 1964-1980 Chevrolet 5.7L/350 Cubic Inch Marine Engines. Features 270 Horsepower, Cast Block and Cylinder Heads, 9:1 Compression Ratio, Internally Balanced, Reverse Rotation, Port Side Dipstick, Flat Tappet Cam, and a 2 Piece Rear Seal. Built for maximum performance and long-term durability in marine applications. Includes an 18-month unlimited hour warranty.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandATK ENGINES
Part NumberA040 DM03

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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