Engines and Components› Pistons and Piston Rings

ATK ENGINES

383 ENGINE, 1970-1995 GM

$3,013.89

SKU: A040 SP52

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In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

This ATK SP52NB short block is designed for upgrading old engines using existing cylinder heads. It features a 100% new, American-made block and a Scat crank kit, providing a robust foundation for custom high-performance engine builds. It is a partially assembled engine, requiring the customer to finish it with their preferred components and verify compatibility for their specific application.

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 SP52

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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