This Speed Engineering cylinder head bolt kit is the long style used on 1997 through 2003 (pre-2004) LS engines. The kit has 15 bolts in short and long lengths and is sold per cylinder head. LS head, crank, and main bolts are torque-to-yield (stretch) bolts, so each bolt must be tightened to the manufacturer's torque and degree specification and can only be used once. They do not use a simple old-style ft-lb torque spec, so read the instructions before installing.
⚠️ Important Notes:
- Sold per cylinder head. A complete engine needs two kits
- Torque-to-yield bolts: tighten to the manufacturer's degree specification and use only once
Features:
- 1997-2003 Long Style: Pre-2004 LS engines
- 15 Bolts: Short and long lengths
- Torque-to-Yield Design: Single use
- Sold Per Cylinder Head
FAQ
Which LS engines use these head bolts?
These are the long style head bolts for 1997 through 2003 (pre-2004) LS engines.
How many bolts are in the kit?
The kit has 15 bolts in short and long lengths, enough for one cylinder head.
Can these head bolts be reused?
No. They are torque-to-yield bolts that are tightened to a degree specification and can only be used once.
How many kits does an engine need?
The kit is sold per cylinder head, so a V8 with two heads needs two kits.
