Pro Series 97-03 LS Cylinder Head 12-point Stud Kit

Upgrade your Gen III LS engine with the Top Street Performance Pro Series 97-03 LS Cylinder Head 12-Point Stud Kit. Designed specifically for early LS engine applications, this LS cylinder head stud kit provides the clamping force and durability needed to help maintain reliable head gasket sealing in street, performance, racing, and boosted engine combinations. Whether you're rebuilding an LS1, replacing cylinder heads, or assembling a performance engine, these 97-03 LS head studs provide dependable cylinder head retention under demanding conditions.

Improved Head Gasket Sealing
Designed to provide strong and consistent clamping force, these LS cylinder head studs help support reliable head gasket sealing and cylinder pressure control. Stud-style fasteners also help guide cylinder heads into position during installation, making engine assembly easier and more precise than traditional head bolt installations.

High-Strength Performance Construction
Manufactured from heat-treated 35 chromoly steel with a minimum tensile strength of 190,000 PSI, this LS head stud kit is built to withstand demanding engine conditions. Threads are rolled after heat treatment and protected with a black oxide finish and oil coating for enhanced durability and corrosion resistance.

Designed for 1997-2003 Gen III LS Applications
Engine-specific design provides compatibility with LS1, LS6, LR4, LM7, L59, LQ4, and LQ9 engine combinations utilizing the 1997-2003 cylinder head fastener configuration. These Gen III LS head studs are ideal for stock replacement, engine rebuilds, LS swaps, cylinder head upgrades, and performance applications requiring dependable cylinder head hardware.

Ideal for Performance Builds & Engine Rebuilds
Perfect for cylinder head installation, head gasket replacement, engine assembly, and high-performance engine projects where fresh LS cylinder head hardware is recommended. An excellent choice for maintaining cylinder head retention and long-term reliability in naturally aspirated, nitrous, turbocharged, and supercharged LS engine builds.

COMPATIBLE WITH
GM LS SERIES V8 ENGINES - 1997–2003 STYLE
• 4.8L / 293 in³ (LR4)
• 5.3L / 325 in³ (LM7, L59)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9)

COMMON VEHICLE APPLICATIONS
Chevrolet Corvette / Camaro / Pontiac Firebird (1997–2003 LS equipped)
GM Silverado / Sierra / Tahoe / Yukon (LS-based applications)
Pontiac GTO early LS swap applications
Popular Gen III LS swap builds

NOTES
• Designed for 1997-2003 LS cylinder head stud applications.
• Not compatible with 2004-2020 LS cylinder head fastener applications.
• Not compatible with Gen V LT engines.
• Verify cylinder head casting and model year before ordering.

SPECIFICATIONS
Torque: 75ft-lbs big 25ft-lbs small / step 1 25ft-lbs ALL / step 2 50ft-lbs big bolts only / step 3 75ft-lbs big bolts only
Color: Black
Fastener Style: Stud
Grade: Performance
Head Style: 12-point
Material: 35 Chromoly Steel
Quantity: Sold as a kit