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Thoroughbred Diesel Top End Gasket Kit with Studs 04.5-07 LLY/LBZ Duramax

Thoroughbred Sku #: TDPTEGKWSCH0407

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Product Details

Product Name:Thoroughbred Diesel Top End Gasket Kit With Studs 2004.5-2007 GM Duramax LLY/LBZ
Manufacturer: Thoroughbred Diesel
Thoroughbred Diesel Part #: TDPTEGKWSCH0407
Fitment Notes: 2004.5-2007 GM Duramax LLY/LBZ

If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need to replace your head bolts with upgraded head studs.

The Thoroughbred Diesel Fasteners Head Stud Kit is a must have in any high performance 2001-2016 GM 6.6L Duramax. To overcome head gasket failures that can occur in diesel engines in these high performance applications, Thoroughbred Diesel Fasteners has introduced heavy-duty head studs for the popular GM LB7, LLY, LBZ, LMM, LML Duramax powerplants.

These studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures.

Thoroughbred Heavy Duty Head Stud Kit Features:

  • Manufactured by an ISO/TS 16949 certified facility.
  • 8740 Alloy Steel material commonly found in tool, engine and even aerospace applications, where overall toughness and wear resistance are key factors.
  • Rolled threads for strength and dimensional accuracy.
  • Tensile strength of over 220,000 PSI for Heavy Duty Series Kits.
  • Black Oxide Finish.
  • Chromoly steel 12 point nuts.
  • For more information on Thoroughbred Diesel call us at 1-859-737-4966

Top End Gasket Kit Features:

  • 4.100" Bore
  • 0.40" MLS Head Gasket
  • Built From The Best Materials


  • .040" MLS Head Gaskets w/ 4.100" Bore
  • MLS Exhaust Manifold Gaskets
  • Intake Manifold Kit
  • Thermostat Housing Gaskets
  • Valve Stem Seals
  • Water Pipe Gaskets
  • Injection Nozzle Kit
  • Air Injection Seals
  • Throttle Body Gasket
  • EGR Valve Gaskets
  • Turbo Gasket Kit
  • Valve Cover Set
  • EGR Inlet Gasket
  • Water Outlet Gaskets
  • Exhaust Pipe Gaskets
  • Rocker Cover Gaskets


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