Engines and Components› Engines, Blocks and Components

ATK ENGINES

ALLSN 1000 AUTO 5-SPD

$5,475.78

SKU: A040 T9055AA

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 Engines High-Performance Crate Engine Kit is designed for broad compatibility, primarily with Small Block Chevy applications. Specific year, make, and model details are not provided as it's a crate engine for custom builds or replacements in various vehicles. The engine produces 345 HP and 400 TQ.

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 T9055AA

Videos

ATK Crate Engine Review! Reveal of Our New Chevy 383 Stroker!

ATK Crate Engine Review! Reveal of Our New Chevy 383 Stroker!
Part 2 Jegs ATK Vortec Crate Engine Tear Down

Part 2 Jegs ATK Vortec Crate Engine Tear Down
What Are Crate Engines And Are They Any Good?

What Are Crate Engines And Are They Any Good?
ATK review

ATK review
Part 3 Jegs ATK Vortec Crate Engine Into the Short Block

Part 3 Jegs ATK Vortec Crate Engine Into the Short Block
Unboxing my new GM 350 CRATE ENGINE!

Unboxing my new GM 350 CRATE ENGINE!
LKQ ATK VS Jasper Engines & Transmissions Reviews | Powertrain | Remanufactured Engines

LKQ ATK VS Jasper Engines & Transmissions Reviews | Powertrain | Remanufactured Engines
Jegs ATK 0282 Vortec 350 Crate Engine unboxing

Jegs ATK 0282 Vortec 350 Crate Engine unboxing
Joe's new atk performance chevy 350 V-8 5.7 liter crate engine 350 hp

Joe's new atk performance chevy 350 V-8 5.7 liter crate engine 350 hp
ATK High Performance Engines Unboxed Review

ATK High Performance Engines Unboxed Review

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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