Engines and Components› Engines, Blocks and Components

ATK ENGINES

LS 415CI STROKER SHRT BLK

$7,591.22

SKU: A040 SP74

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

Professional / shop required

Description

The ATK ENGINES SP74 (HP74) is a Chevy 350 Vortec base engine designed for 1996-2000 Chevy trucks and SUVs. This crate engine delivers 315 horsepower and 400 lb-ft of torque, offering a performance upgrade. It is recommended to use ECM tuning and 1 5/8" headers to achieve the engine's full potential.

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 SP74

Videos

Jegs ATK 0282 Vortec 350 Crate Engine unboxing

Jegs ATK 0282 Vortec 350 Crate Engine unboxing
Part 2 Jegs ATK Vortec Crate Engine Tear Down

Part 2 Jegs ATK Vortec Crate Engine Tear Down
Part 3 Jegs ATK Vortec Crate Engine Into the Short Block

Part 3 Jegs ATK Vortec Crate Engine Into the Short Block

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