Engines and Components› Engines, Blocks and Components

ATK ENGINES

SUBARU 5EAT AUTO 5-SPD

$6,125.00

SKU: A040 T5725AA

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The ATK HP55 Chevy 383 Stroker Base Engine is a high-performance, "bulletproof" street-strip engine with a lopey idle, producing 500HP and 505 ft-lbs of torque. It features an OE roller block, forged crankshaft, rods, and pistons, and ATK HP aluminum cylinder heads. It requires 91+ octane fuel and 10W30 oil.

Fitment

Fitment Guaranteed

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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 T5725AA

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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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