Engines and Components Engines, Blocks and Components

ATK ENGINES

GM 4L85E AUTO 4-SPD

$3,013.89

SKU: A040 T1685AA

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

Advanced — 4+ hours

Description

The ATK Engines HP32 is a high-performance crate engine designed for Small Block Chevy 350ci applications. It delivers 350 horsepower and 400 lb/ft of torque, built on a seasoned OE 4-bolt main 1pc seal block from the 1996-2000 era. This engine features Vortec cast iron cylinder heads, a hydraulic roller camshaft, and a 9.5:1 compression ratio, providing a robust foundation for various vehicle builds. It's ideal for enthusiasts seeking a powerful and reliable engine upgrade.

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 T1685AA

Videos

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.

View Full Return Policy