Engines and Components› Engines, Blocks and Components

ATK ENGINES

NV3500- GAS - 2WD - 5 SPE

$2,173.89

SKU: A040 R4309

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

Moderate — 2–4 hours

Description

The ATK HP74 is a 350 cubic inch Vortec base engine designed for 1996-2000 Chevrolet trucks and SUVs. It features an OE roller block with 4-bolt mains and a 1-piece seal. This engine delivers 315 horsepower and 400 ft-lbs of torque, making it a reliable replacement or upgrade for compatible vehicles. It comes with a rear sump 5qt oil pan, which may have clearance issues with some older car platforms like Chevelles (with steering behind the crossmember), certain Corvettes, and 1962-1967 Chevy IIs.

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 R4309

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