Starter bolts on LS and LT swaps and crate engine builds are an easy item to overlook until the starter walks out of position or vibrates loose under repeated start cycles. The Chevrolet Performance 11604960 is the OEM-spec starter bolt for GM LS and LT series engines -- 4.724 in. long, hex head, steel with zinc oxide finish, and a knurled shaft that locks the bolt against vibration in a way most aftermarket replacements don't replicate. Two are required per application. Note: GM part number 11604960 has been superseded by 11610633 -- both are the same bolt; verify which number your supplier stocks.

Chevrolet Performance 11604960 Starter Bolt Features:

• OEM Chevrolet Performance starter bolt for GM LS and LT series engines
• 4.724 in. overall length
• Hex head style
• Steel construction, zinc oxide finish
• Knurled shaft provides vibration-resistant, secure fit
• Direct OEM replacement -- manufactured to GM specifications
• Superseded by GM part number 11610633
• 2 required per application
• Sold individually