key_features">Key Features

M11 x 1.5 thread pitch — OEM specification for all GM LS crankshaft applications
Hex head design for positive wrench engagement during installation and removal
Complete set of 6 bolts for full flywheel mounting
Direct fit for LS1, LS2, LS3, LS6, LS7, and L92 series engines
Follow GM three-stage torque procedure: 15 ft-lbs > 37 ft-lbs > 74 ft-lbs for proper bolt loading

Description

The flywheel-to-crankshaft connection is one of the most critical fastener applications in your drivetrain. LS engines — with their cross-plane crankshaft design — generate significant vibrations and torque pulses that place heavy demands on flywheel hardware. Using the correct fasteners with proper torque specs prevents bolts from backing out, which can destroy the clutch assembly, rod bearings, and transmission bearings.

This hex head flywheel bolt kit is built to M11 x 1.5 specification for direct compatibility with GM Gen III and Gen IV LS crankshafts. The hex head design provides reliable wrench engagement, reducing the risk of rounded fasteners during high-torque installation. These bolts deliver the clamping force your LS engine demands whether you're completing an LS swap, a rebuild, or replacing worn factory hardware.

Compatible with LS1, LS2, LS3, LS6, LS7, and L92 series engines. Always use new flywheel bolts when installing a flywheel — reusing stretched or fatigued hardware on this critical connection invites failure. Follow GM's recommended three-stage torque sequence: first pass at 15 ft-lbs, second pass at 37 ft-lbs, and final torque at 74 ft-lbs in a star pattern for even clamping.

Kit Includes

6 hex head flywheel bolts (M11 x 1.5 thread pitch)
Manufacturer's warranty against defects

Hex Head Flywheel Bolt Kit | GM LS1/LS2/LS3/LS6/LS7/L92 | Set of 6

Comes with?

Specifications