Product Description:
97-2003 LS1/LS6 Chevrolet Performance Cylinder Head Bolt Kits Genuine GM, GM 12498545
Restore factory clamping force and ensure proper head gasket sealing with the genuine Chevrolet Performance LS1/LS6 Cylinder Head Bolt Kit. Designed specifically for 1997–2003 Gen III LS engines, this OEM replacement kit provides the correct torque-to-yield fasteners required for LS1 and LS6 engine assembly, rebuilds, and head gasket service.
Manufactured to GM specifications, these high-strength cylinder head bolts deliver consistent clamping load for dependable engine performance and durability. Ideal for stock rebuilds, performance upgrades, and maintenance projects where new torque-to-yield fasteners are required.
Features:
Genuine Chevrolet Performance cylinder head bolt kit
Designed for 1997–2003 LS1 and LS6 engines
OEM torque-to-yield (TTY) fasteners
Provides proper cylinder head clamping force
Direct replacement for factory-installed head bolts
Ideal for engine rebuilds and head gasket replacement
Manufactured to GM quality standards
Applications:
1997–2003 LS1 Engines
2001–2004 LS6 Engines
Other Gen III LS applications utilizing the early-style LS head bolt design
Benefits:
Reliable head gasket sealing
Correct OEM fit and performance
Prevents issues associated with reusing TTY fasteners
Perfect for stock and performance engine builds
Note: Torque-to-yield head bolts are designed for one-time use only and should always be replaced during cylinder head service. Follow factory torque specifications and installation procedures.
