This upgrade enhances existing 1/2 in. head stud kits for GM Gen III and Gen IV LS engines by reinforcing the intake-side fastener row. It provides additional clamping force for high-power and boosted builds where improved sealing stability is required.

Brian Tooley Racing 1/2HSKUPGRADE Includes:

• 10 M8 Intake-Side Studs
• Matching Nuts and Washers

Brian Tooley Racing 1/2HSKUPGRADE Features:

• Designed for GM Gen III/IV LS Engines
• Complements Existing 1/2 in. Head Stud Kits
• Improves Cylinder Head Sealing Under High Load
• High-Strength Steel Construction

Brian Tooley Racing 1/2HSKUPGRADE Notes:

• Intake-Side Row Only; Main 1/2 in. Studs Must Already Be Installed
• Use Correct Torque Sequence and Specifications