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Choate Performance Engineering

6.6L 2004.5-2005 Duramax LLY Short Block Workhorse Diesel Crate Engine Choate Performance CORE CHARGE OF $1500.00 APPLIES

$11,115.00

SKU: C0D9 CEP66LLYSW

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Description

The Choate Performance Engineering CEP66LLYSW is a 6.6L Duramax LLY Long Block Workhorse Diesel Crate Engine, designed for 2004.5-2006 Duramax LLY engines. It features O-Ringed Heads, Coated, Fly Cut, and Delipped Pistons, a Stage 2 Cam, and Chromoly Pushrods, making it suitable for heavy hauling and towing.

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Specifications

BrandChoate Performance Engineering
Part NumberC0D9 CEP66LLYSW

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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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