Engines and Components Engines, Blocks and Components

ATK ENGINES

MITSU 4G61/G4CR CYL HEAD

$537.23

SKU: A040 2225

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

Professional / shop required

Description

This limited production 5.3L LS engine produces 475 horsepower and 435 ft-lb. of torque, featuring an all-aluminum design and extra-thick cylinder sleeves. It comes with a cast aluminum dual plane intake mounted Holley EFI carburetor replacement system and MSD LS ignition with six preprogrammed timing tables. The core engine is a 100% Brand New GM 5.3L built for 2005-2009 Trucks and SUV’s, upgraded with a camshaft and valve spring, and AFM/DOD delete.

Fitment

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Specifications

BrandATK ENGINES
Part NumberA040 2225

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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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