Engines and Components Engines, Blocks and Components

ATK ENGINES

CHEV 6.0 V8 07-09 ENGINE

$4,465.34

SKU: A040 L6009GMC

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
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Overview

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.
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CHEV 6.0 V8 07-09 ENGINE

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandATK ENGINES
Part NumberA040 L6009GMC

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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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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