2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Crate Engines

Whether you're restoring your GM truck or are looking to completely upgrade your truck with added power and reliability, our crate engines are the perfect choice to get the most from your truck! With reputable brands, we offer a vast selection of reliable and powerful crate engines and rebuild kits that truly will take your truck to the next level of power and reliability. Pair your new crate engine with our selection of Transmission Upgrades! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments. 

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Industrial PDM-LB7STKLB Stock Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Industrial PDM-LB7STKLB Stock Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Industrial Injection

Industrial PDM-LB7STKLB Stock Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: IISPDM-LB7STKLB
$15,325.75
Choate Engineering CEP66LB7SD 6.6L Duramax Daily Driver Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Choate Engineering CEP66LB7SD 6.6L Duramax Daily Driver Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Choate Engineering

Choate Engineering CEP66LB7SD 6.6L Duramax Daily Driver Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: CHTCEP66LB7SD
$9,000
Choate Engineering CEP66LB7SW 6.6L Duramax Workhorse Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Choate Engineering CEP66LB7SW 6.6L Duramax Workhorse Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Choate Engineering

Choate Engineering CEP66LB7SW 6.6L Duramax Workhorse Short Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: CHTCEP66LB7SW
$11,500
Choate Engineering CEP66LB7LW 6.6L Duramax Workhorse Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Choate Engineering CEP66LB7LW 6.6L Duramax Workhorse Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Choate Engineering

Choate Engineering CEP66LB7LW 6.6L Duramax Workhorse Long Block | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: CHTCEP66LB7LW
$14,800
$15,000
Choate Engineering CEP66LB7LD 6.6L Duramax Full Running Daily Driver | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Choate Engineering CEP66LB7LD 6.6L Duramax Full Running Daily Driver | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Choate Engineering

Choate Engineering CEP66LB7LD 6.6L Duramax Full Running Daily Driver | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: CHTCEP66LB7LD
$12,500

2001-2004 6.6L Silverado & Sierra 2500HD/3500HD

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