MACE head bolt set is designed for precision and strength, ensuring a secure and reliable seal for your engine’s cylinder head. Crafted from high quality, heat treated steel, these bolts are engineered to withstand extreme pressure and high temperatures, providing maximum performance under demanding conditions. These are torque-to-yield (TTY) bolts which means they are designed to be tightened past their elastic limit, guaranteeing high and uniform clamping forces. 

This head bolt set suits HSV vehicles fitted with LS1, LS2, LS3, LS7, LSA and LS9 V8 engines.

 

Contents:

• 10 X Short cylinder head bolt (M8 x 1.25 x 45)
• 20 X Long cylinder head bolt (M11 x 2.00 x 100)

Vehicle Fitment Guide

 

Notes:

• Head bolts for LS1 till 09/2003 can be purchased through another listing.
• When torquing up bolts, an accurate torque wrench or angle gauge will be required to achieve correct clamping forces.
• TTY bolts are only to be utilized once due to permanent elongation and safety concerns.