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Gator Fasteners Heavy Duty Main Stud Kit for Chevy/GMC (1982-97) 6.2L & 6.5L Diesel

If you are wanting to keep your 6.2L or 6.5L Chevy/GMC Diesel on the road for the long haul, you need to replace your main bolts with upgraded main studs.
• Fits 1997 and earlier 6.5L turbo engines, 6.5L non-turbo engines and 6.2L engines.
• Drastically reduces the chances of main webbing cracks

-(20) 12mm Studs
-(20) 12mm 12 Point Nuts
-(20) 12mm Washers

* For 1997.5 and later engines, check your block casting number to see if its still a 599 block. If it is a 599 block this kit will work
* This kit will not fit 506 blocks, as they would require (6) 10mm studs.
Pricing: $399.99
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These main studs have a much higher strength and will not stretch like the factory bolts will.


  • MSK6265
  • MSK6265
  • 708744253941
  • Gator Fasteners
  • New


Shipping Information

  • Item Requires Shipping
  • 8.6 lbs.
  • W8.0000” x H3.0000” x L12.0000”
  • Free Shipping