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Mr. Gasket

Mr. Gasket Starter Bolts - GM LS Engines

Chevrolet Small Block - Gen III/IV - Includes (2) Long and (1) Short Bolt

Part # 60942MRG Be the first to write a review
Estimated shipping date: 02/02/2022
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The metric starter bolts for GM (General Motors) LS engines can be tough to find & there are two different styles of starters. Some starters use one long and one short bolt & the other style starter uses two longer bolts. These bolt kits come in three versions to fit these starters or a set of three bolts that will work in all applications. Zinc-plated steel.


  • Starter Bolts for GM LS Series Engines
  • Choose From (3) Bolt Sets w/ (2) Long Bolts, Long/Short Bolts, or a Set of 3 Pieces (fits All GM LS Starters)
  • Steel w/ Zinc Plating
  • Knurling on Bolts – Improves Alignment of Starter
  • Long Bolts are M10 x 1.5 x 113mm Long – Replaces OEM GM #’s 12561387, 11610633 or 11610787
  • Short Bolts are M10 x 1.5 x 45mm Long – Replaces GM OEM # 12561848

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

Brand Mr. Gasket
Emission Code5
EngineGM Small Block Gen III/IV (LS Based)
Head StyleHex
Product TypeStarter Bolts
Thread SizeM10x1.5MM
Under Head Length45mm & 113mm
WarrantyLimited 90 Day
Part Number60942MRG

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Note: GM LS Engines have two types of starters. Some use one long and one short bolt & the other style uses two long bolts. If you are unsure which you have, use part number 60942MRG. It includes three bolts and will work in all applications (there will be one bolt left over).
Limited 90 Day: See Details

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