+3 Head Stud Kit for 2017-2021 6.6l L5P Duramax Chevy GMC KB-6.6L-L5P-HSK $298.95 In stock Quantity: 1 Add to Bag Product Details Cross Reference:: 230-4301 Eliminate premature head gasket failure with our complete head stud kit! Features: Rolled Threads Prevents Head Lifting Multiple Torque Cycles - Unlike Factory Torque To Yield Bolts 220K PSI Tensile Strength Includes Assembly Lubricant Fits: 2017-2021 6.6l L5P Duramax Engines. Save this product for later Favorite