BTR STOCK STYLE LS HEAD BOLTS

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BTR HEAD BOLT KIT - 97-03 LS - 2 NEEDED PER ENGINE - BTR98545

Similar to Chevrolet Performance 12498545 head bolt kit. Same great quality, lower price. 

This kit fits the following RPO code engines (4.8L, 5.3L, 5.7L, 6.0L):

• LS1 (5.7L)
• LS6 (5.7L)
• LQ4 (6.0L Early model pre-2004)
• LQ9 (6.0L Early model pre-2004)
• LM7 (5.3L Early model pre-2004)
• LR4 (4.8L)

Key Notes for BTR98545 Fitment:

Production Date: Fits engines 1997- Early 2003 casting dates, specifically those with three different bolt lengths commonly found in early LS engines.

Quantity: This kit services one cylinder head. Two kits (2) are required for a complete engine overhaul. Components: (8) M11 x 2.0 x 155mm (Long head bolts), (2) M11 x 2.0 x 100mm (Short head bolts), (5) M8 x 1.25 x 45mm (Side bolts/small diameter)

Usage: These are Torque-To-Yield (TTY) bolts and cannot be reused.

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BTR HEAD BOLT KIT - 04+ LS - 2 NEEDED PER ENGINE - BTR00568

Similar to Chevrolet Performance 17800568 head bolt kit. Same great quality, lower price. 

This kit fits the following RPO code engines (4.8L, 5.3L, 6.0L, 6.2L, 7.0L):

• LS2 (6.0L)
• LS3 (6.2L)
• LS7 (7.0L)
• LSA (6.2L Supercharged)
• L76 (6.0L AFM)
• L77 (6.0L AFM)
• L98 (6.0L)
• LY2 (4.8L)
• LM7 (5.3L Late model/2004+)
• L33 (5.3L)
• LC9 (5.3L)
• LMG (5.3L)
• LY6 (6.0L)
• LQ4 (6.0L Late model/2004+)
• LQ9 (6.0L Late model/2004+)

Key Notes for BTR00568 Fitment:

Production Date: Fits later model LS engines with late 2003 / 2004-up casting dates, specifically those with the shorter, equal-length blind head bolt holes.

Quantity: This kit services one cylinder head. Two kits (2) are required for a complete engine overhaul. Long Bolts (10): M11\2.0 thread pitch, 100mm length.  Short Bolts (5): M8\1.25 thread pitch, 45mm length.

Usage: These are Torque-To-Yield (TTY) bolts and cannot be reused.