Engines and Components› Engines, Blocks and Components

ATK ENGINES

CHEV 6.0 V8 07-09 ENGINE

$4,738.34

SKU: A040 L6009GMC

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

Advanced — 4+ hours

Description

The ATK LQ9-LB-1 is an LQ9-based 6.0L engine featuring LS3 Aluminum heads, producing 550HP+. It's designed for strong mid to upper-end power and a noticeable idle. Optimal performance requires headers, a Fast intake, chassis dyno tune, and 36lb injectors. ECM tuning is mandatory. A PCV valve must be used, and an Air-Oil separator (e.g., Moroso #85487) is recommended. A steam line kit (e.g., Trick Flow #TFS-306SB601) dumping to the water pump, radiator, or radiator hose is also recommended.

Fitment

Fitment Guaranteed

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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 L6009GMC

Videos

Build the Ultimate LQ4/LQ9: Boost-Ready LS Power Guide!

Build the Ultimate LQ4/LQ9: Boost-Ready LS Power Guide!
The Difference Between LQ9 and The LQ4

The Difference Between LQ9 and The LQ4
LS9 vs LQ9 Drag Strip Beasts! Corvette's Engine Showdown

LS9 vs LQ9 Drag Strip Beasts! Corvette's Engine Showdown
Building A Naturally Aspirated 6.0L LS Iron Block

Building A Naturally Aspirated 6.0L LS Iron Block
All The LS Engines Explained

All The LS Engines Explained
Which LS Engine Is Best For Your Swap?

Which LS Engine Is Best For Your Swap?
“LS3 Heads on a Gen 3 6.0 LQ4/LQ9 — The Secret to Instant 500+ HP!”

“LS3 Heads on a Gen 3 6.0 LQ4/LQ9 — The Secret to Instant 500+ HP!”

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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