2001-2004 GM Duramax 6.6L LB7 Head Studs & Main Studs

If you already have or plan on modifying the 6.6L Duramax LB7 under the hood of your 2001-2004 GM Sierra/Silverado, you're going to need some new studs to ensure each component remains in place. Aftermarket head studs are vital for high-performance engines sporting high compression or turbochargers, so it's best to invest in only the highest-quality replacements for your rig. Aftermarket studs are also less likely to twist while being torqued, providing your engine with the ability to obtain much more accurate torque values in every situation. 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.