Engines and Components› Engines, Blocks and Components

ATK ENGINES

FB 300MM INCREASED STALL

$304.64

SKU: A040 TQBU51XHS

Special Order
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 ENGINES TQBU51XHS is a Chevy 383 Stroker Stage 3 crate engine producing 500 horsepower and 510 ft-lbs of torque. It features a 4-bolt main OE roller block, Scat nodular iron crankshaft, Scat I-beam connecting rods, forged pistons, AFR 195cc aluminum cylinder heads, and a hydraulic roller camshaft.

Fitment

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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.

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Specifications

BrandATK ENGINES
Part NumberA040 TQBU51XHS

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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