Engines and Components› Engines, Blocks and Components

ATK ENGINES

GM 4L60E AUTO 4-SPD

$2,902.78

SKU: A040 T7231AA

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

Moderate — 2–4 hours

Description

The ATK HP291PC is a 330HP Chevy 350 complete engine designed for vehicles that originally came with a 1-piece rear main seal 350 engine from 1987-2000. It features a 4-bolt main OE block, cast iron heads, and a hydraulic flat tappet camshaft. This engine is ideal for trucks and SUVs, with specific exclusions for some Chevelles, Corvettes, and 1962-1967 Chevy IIs due to oil pan clearance.

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 T7231AA

Videos

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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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