Sale

Engines and Components Engines, Blocks and Components

GM

6.0L LQ4 LQ9 Cast Iron Bare Engine Block

$2,955.84 $2,499.99 Save $455.85

SKU: 12733807

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The GM 12733807 is a 6.0L Gen III cast-iron engine block. It features a production oiling system and 6-bolt iron main bearing caps.

This block is based on the LQ4 and LQ9 engines found in trucks and SUVs, specifically those equipped with the 6.0L engine without Active Fuel Management. It is designed to support over 500 horsepower and is a choice for street LS supercharged and turbo power packages.

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

BrandGM
Part Number12733807
CategoryEngines and Components

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