Engines and Components› Engines, Blocks and Components

ATK ENGINES

FWD,FNR5,A/T

$3,287.23

SKU: A040 T370313

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

Moderate — 2–4 hours

Description

This ATK HP89 Chevy 350 Base Engine is a high-performance crate engine designed for various Chevrolet applications. It features a 350 cubic inch displacement, producing 390 horsepower and 420 lb-ft of torque. The engine utilizes an OE roller block from 1996-2000, a 4-bolt main, and a 1-piece rear seal. It includes a reground OE crankshaft, hypereutectic 10:1 compression pistons, and ATK HP aluminum cylinder heads. Recommended for use with conventional/non-synthetic 10W30 oil, 91+ octane fuel, and a 2200-2800 stall converter.

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 T370313

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