Upgrade your LS engine build with the Top Street Performance Pro Series LS Cylinder Head Hex Bolt Kit. Designed for 2004-2020 GM Gen III and Gen IV LS applications, this LS cylinder head bolt kit provides the strength and clamping force needed to help maintain reliable head gasket sealing in street, performance, and racing engines. Whether you're assembling a fresh engine, replacing cylinder heads, or performing a rebuild, these LS head bolts provide dependable fastening performance.

Reliable Cylinder Head Clamping Force
Designed to securely fasten the cylinder heads to the engine block, this LS head bolt kit helps maintain consistent cylinder head clamping force and dependable head gasket retention. Ideal for engine rebuilds, cylinder head replacement, and performance engine assembly projects.

High-Strength Performance Construction
Manufactured from heat-treated 35 chromoly steel with a minimum tensile strength of 190,000 PSI, these LS cylinder head fasteners are 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 2004-2020 LS Applications
Engine-specific design provides compatibility with a wide range of Gen III and Gen IV LS engine combinations. These LS engine head bolts are ideal for stock replacement, engine rebuilds, cylinder head upgrades, and performance applications requiring reliable cylinder head hardware.

Ideal for Engine Rebuilds & Performance Builds
Perfect for cylinder head installation, head gasket replacement, engine assembly, and performance engine projects where fresh LS cylinder head hardware is recommended. A great choice for maintaining proper head gasket sealing and long-term engine reliability.

COMPATIBLE WITH
GM LS SERIES V8 ENGINES (2004-2020 CYLINDER HEAD APPLICATIONS)
• 4.8L / 293 in³ (LY2)
• 5.3L / 325 in³ (LM7, L59, LC9, LH6, LY5)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)
• 6.2L / 376 in³ (LS3, L92, L99, L9H)
• 7.0L / 427 in³ (LS7, application-specific verification required)

COMMON VEHICLE APPLICATIONS
Chevrolet Corvette / Camaro (LS equipped)
Chevrolet Silverado / GMC Sierra LS-based trucks
Chevrolet Tahoe / Suburban / GMC Yukon LS-based SUVs
Pontiac G8 / GTO and LS swap applications

NOTES
Designed for 2004-2020 LS cylinder head bolt applications.
Verify cylinder head casting and head bolt style before ordering.
Not compatible with Gen V LT engines.
Not compatible with Gen I Small Block Chevy or Big Block Chevy engines.

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: Bolt
Grade: Performance
Head Style: Hex
Material: 35 Chromoly Steel
Quantity: Sold as a kit