Engines and Components› Engines, Blocks and Components

ATK ENGINES

CHEV 383 STKR MID DRESS

$8,161.08

SKU: A040 HP55M

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Special Order
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INSTALL DIFFICULTY
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Description

This ATK HP55M is a 383 cubic inch Chevy Stroker mid-dress crate engine, producing 500 horsepower and 505 ft-lbs of torque. It features an OE roller block (1996-2000), 4-bolt main, 1pc rear seal, Scat 4340 forged crankshaft and H-beam rods, forged 10.2:1 pistons, hydraulic roller camshaft, ATK HP aluminum cylinder heads, and billet aluminum 1.6 roller rockers. It comes equipped with an Edelbrock Performer RPM Air-Gap intake manifold, Pro Billet distributor, and Weiand action+ long water pump.

Fitment

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Specifications

BrandATK ENGINES
Part NumberA040 HP55M

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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