The BTR Cylinder Head Bolt Kit (BTR00568) is the BTR equivalent of the Chevrolet Performance 17800568 head bolt kit, built for 2004-and-newer GM LS-series engine heads at a lower price. Each kit covers one cylinder head, so two kits are needed to complete a full V8 engine build.
- Part Number: BTR00568
- Equivalent To: Chevrolet Performance 17800568
- Application: GM LS-Series, 2004 and newer (1 head per kit)
- Fits RPO Codes: LS2, LS3, LS7, LSA, L76, L77, L98, LY2, LM7 (2004+), L33, LC9, LMG, LY6, LQ4/LQ9 (2004+ models)
- Head Style: Hex head
- Material/Finish: Steel, zinc coated
- Bolt Breakdown: (10) M11 x 2.0 long bolts, 100mm length; (5) M8 x 1.25 short bolts, 45mm length
- Bolt Type: Torque-to-yield (TTY) — cannot be reused once torqued
- Fitment Note: Fits later LS engines with late-2003/2004-up casting dates and shorter, equal-length blind head bolt holes
- Quantity Needed: 2 kits required per engine (one per cylinder head)
FAQ
How many BTR00568 kits do I need for a complete engine?
Two kits are required per engine — one BTR00568 kit covers a single cylinder head, so a complete LS V8 build needs two kits total.
What LS engines is the BTR00568 head bolt kit compatible with?
This kit fits 2004-and-newer GM LS-series engines with late-2003/2004-up casting dates, covering RPO codes LS2, LS3, LS7, LSA, L76, L77, L98, LY2, LM7, L33, LC9, LMG, LY6, and LQ4/LQ9.
What material and finish are the BTR00568 head bolts made from?
The bolts are hex-head style, made from steel with a zinc coating for corrosion resistance.
What bolts are included in the BTR00568 kit?
Each kit includes (10) M11 x 2.0 long bolts at 100mm length and (5) M8 x 1.25 short bolts at 45mm length, enough to service one cylinder head.
Can BTR00568 head bolts be reused after removal?
No. These are Torque-to-Yield (TTY) bolts, which are designed for one-time use and should be replaced any time the cylinder head is removed.
