2017-2021 Duramax Heavy Duty Head Stud Kit (HSK66L5P)

Fits 

If you have big dreams of big power in your Duramax, then you should know one of your first moves should be upgrading your old weak head bolts. Whether it's 200 or 2000HP, Studs have a higher clamping capacity which gives them superior strength to withstand more stress. And being longer, this provides more thread engagement which gives you a more accurate torque reading.

Part Number: HSK66L5P

• Higher strength and will not stretch like factory bolts
• Prevents damage to head gaskets 
• Can withstand high-stress
• Longer than head bolts, means more thread engagement
  
• Thread into the engine block, install your head over the studs, the nuts apply clamping force VS bolts are threaded through the cylinder head into the block, applying clamping force

Click here for installation instructions