Pro Series Chevy Big Block OEM Cylinder Head Hex Stud Kit

Upgrade your engine build with the Top Street Performance Pro Series Big Block Chevy Cylinder Head Hex Stud Kit. Designed for factory-style Chevrolet Big Block Mark IV cylinder head applications, this Big Block Chevy head stud kit provides the clamping force and durability needed to help maintain reliable head gasket sealing in street, performance, marine, and racing engines. Whether you're rebuilding a 396, 402, 427, or 454 Big Block Chevy, these BBC cylinder head studs provide dependable cylinder head retention under demanding conditions.

Improved Head Gasket Sealing
Designed to provide strong and consistent clamping force, these Big Block Chevy 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 bolts.

High-Strength Performance Construction
Manufactured from heat-treated 35 chromoly steel with a minimum tensile strength of 190,000 PSI, this BBC 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 original Big Block Chevy Cylinder Heads
Engine-specific design provides compatibility with Chevrolet Big Block Mark IV cylinder head applications, including many 396, 402, 427, and 454 engine combinations. These factory-style BBC head studs are ideal for stock replacement, engine rebuilds, cylinder head upgrades, and performance applications requiring dependable cylinder head hardware.

Ideal for Rebuilds & Performance Engine Builds
Perfect for cylinder head installation, head gasket replacement, engine assembly, and high-performance engine projects where fresh Big Block Chevy cylinder head hardware is recommended. An excellent choice for maintaining cylinder head retention and long-term reliability in naturally aspirated, nitrous, marine, and racing applications.

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³
• 8.1L / 496 in³ stroker combinations (application-specific verification required)

COMMON USES
• Big Block Chevy Engine Rebuilds
• Original Cylinder Head Installation
• Head Gasket Replacement
• Street Performance Engines
• Marine Engine Builds
• Drag Racing Applications
• Engine Assembly Projects
• High-Compression BBC Builds

NOTES
• Designed for factory-style Big Block Chevy cylinder head applications.
• Not compatible with Bowtie, Dart, Merlin, Pro Top, or World Products-specific applications requiring dedicated hardware.
• Not compatible with Small Block Chevy, LS, or LT engine platforms.

SPECIFICATIONS
Torque: 4 steps up to 80ft-lbs long 70ft-lbs / step1 25ft-lbs / step 2 50ft-lbs / step 3 70ft-lbs / step 4 80ft-lbs
Color: Black
Fastener Style: Bolt
Grade: Performance
Head Style: 12-point
Material: 35 Chromoly Steel
Quantity: Sold as a kit