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

• Fits 1997-2003 LS Engines: Designed for Gen III LS cylinder head applications.

• 190,000 PSI Tensile Strength: Heat-treated 35 chromoly steel construction.

• 12-Point Stud Design: Provides accurate torque readings and secure installation.

• Supports Reliable Head Gasket Sealing: Helps maintain consistent cylinder head clamping force.

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.

What engines does this head stud kit fit?

This kit is designed for 1997-2003 GM Gen III LS engines including LS1, LS6, LR4, LM7, L59, LQ4, and LQ9 applications.

What are the advantages of head studs over head bolts?

Head studs can provide more consistent clamping force, improved cylinder head alignment during installation, and enhanced head gasket retention compared to conventional head bolts.

Why upgrade to LS head studs?

LS head studs are commonly used in engine rebuilds, LS swaps, performance applications, and boosted combinations where maintaining cylinder head clamping force is critical.

Are these suitable for turbocharged or supercharged LS engines?

Yes. The high-strength chromoly construction and increased clamping capability make them suitable for naturally aspirated and boosted LS applications.

What material are the studs made from?

The kit is manufactured from heat-treated 35 chromoly steel and features rolled threads, a black oxide finish, and corrosion-resistant oil coating.

What is the benefit of a 12-point design?

The 12-point nuts provide improved socket engagement and help achieve accurate torque readings during installation.

Can these be used during an LS swap?

Yes. This LS head stud kit is ideal for LS swaps, engine rebuilds, cylinder head replacement, and performance engine assembly projects using compatible 1997-2003 LS engines.

What is the difference between 1997-2003 and 2004+ LS head studs?

Early Gen III LS engines use a different cylinder head fastener configuration than later LS applications. Always verify your engine's model year and cylinder head application before ordering.