Upgrade the valves in your Duramax to these premium stainless intake/inconel exhaust valves, nitride coated and swirl polished for lasting quality ...

KDD can port your heads, KDD can even develop new ports for new engines through our custom induction program! For most engines porting will start o...

Description OEM 3.900 Stroke No crank gear included Dual Damper Keyways Conservatively rated for 800HP Machined from 4340, through hardened steel ...

Mahle Clevite camshaft bearing set for 2001-Present GM 6.6 Duramax engines.

Introducing the ATS GM Billet Flex Plate - A Marvel of Strength and Precision, Crafted in Arvada, CO Elevate your transmission's performance with t...

BD's FleX-Plate is designed to reliably handle up to 1,500 lb-ft of torque. These units are forged billet, precision-balanced and SFI approved for ...

This listing is for 2 shafts which is 1 full set Upgraded Rocker Shafts fit 01-16 Duramax

This set comes with the gaskets needed to reseal the top end of the engine on the LB7, LLY, LBZ, and LMM model years (Vin 2 or D designation) **Doe...

This set comes with the gaskets needed to reseal the top end of the engine on the LB7, LLY, LBZ, and LMM model years (Vin 1 designation) **Does not...

1.0mm thickness Fits all Vins for 2001-2010 Single Right side head gasket only

1.05mm thickness Fits all Vins for 2001-2010 Single Right side head gasket only

1.0mm thickness Fits all Vins for 2001-2010 Single Left side head gasket only

1.05mm thickness Fits all Vins for 2001-2010 Single Left side head gasket only

.95mm thickness Fits all Vins for 2001-2010 Single Left side head gasket only

Bottom end gasket set for the Duramax LB7,LLY, LBZ, LMM  model years

.95mm thickness Fits all Vins for 2001-2010 Single Right side head gasket only

From 2001 to 2016, Manton's Extreme Duty Billet Valve Bridges for 6.6L GM Duramax engines are designed for high stress applications. OEM bridges we...

Wagler's WCPC6618 Billet Rocker Bridges improves horsepower on your 2001-2016 GM Duramax 6.6L. Forging made from 4340ACQ certified material. All dr...

Product Features BulletProof EGR Cooler, GM, 6.6L, Duramax, LLY Manufactured by: Bullet Proof Diesel Stainless Steel Tubing That Is Stronger And...

Wagler Competition Products proudly presents their updated 6.6 Duramax connecting rods. These competitively priced connecting rods feature the ben...

The ARP Custom Age 625 series head studs are the ultimate head stud for high horsepower and competition engines.  Rolled threads after hardening, c...

Protect your truck with the technology high power diesel OEMs use. A Fluidampr performance diesel damper provides premium, broad range control of d...