AMS Racing Head Bolt Kit for 1997-2003 LS LS1 LS6 LQ4 LQ9 LM7 4.8 5.3 5.7 6.0 12498545 (Full Set (Qty for Both Heads))

AMS Racing cylinder heads bolts meet OEM requirements while maintaining a fair pricepoint. These bolts are TTY (torque-to-yield).

• Bolts fit 1997-2003 LS Head Bolt Kit LS1 LS6 LQ4 LQ9 LM7 4.8 5.3 5.7 6.0
• These are the stock-replacement cylinder head bolts that are torque-to-yield and are built to the same specs as GM # 12498545
• These are the Gen-3 design that use three different bolt lengths and were used by GM from 1997 through mid-year 2004.
• QTY 8 155mm Bolts, QTY 2 100mm bolts, and QTY 5 45mm bolts 2004-2014 heads used QTY 10 100mm bolts, and QTY 5 45mm bolts
• These cannot be reused after being torqued down because they stretch when torqued. Choose the option for enough fasteners for one or both cylinder heads. 2 Sets Needed per Engine