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INDESTRUCTIBLE TENSILE STRENGTH

Rated at 220,000 psi tensile strength. Threads rolled after heat treatment for optimum fatigue strength. Premium quality inspection standards ensure you'll never get blown head gaskets again.

OPTIMUM DESIGN

Broached stud ends install & make cylinder head removal easier. Installation manual is included with drawn diagrams to ease the installation process.

ULTRA CLAMPING FORCE

Head studs are designed to retain cylinder seal even with today's extreme high pressure turbo systems. These studs far exceed clamping forces provided by standard Ford head bolts.

NUTS & WASHERS INCLUDED

Hardened parallel washers allow for uniform load distribution and accurate torque readings.

2004+ Chevrolet Gen III IV LS 6.0L 5.7L 4.8L 5.3L 6.2L Small Block Cylinder Head Stud Kit

Head studs vs Head Bolts

In every diesel car, there are high cylinder pressures that can damage head gaskets. Factory OEM head bolts are torque to yield, meaning you torque the bolt to a specific torque with a final 90 degree rotation that will place the bolt at its’ maximum stretch point.

Our observation through years of inspecting and repairing diesel trucks is that when you add parts that increase horsepower (turbocharger, injectors, chips etc.), you risk creating higher cylinder pressures lower than your RPM range, consequently leading to a blown head gasket.

In contrast to head bolts, head studs are engineered to not stretch. Xotic Performance head studs are created using premium steel alloys (XOTIC 7200) that are superior in tensile strength to a bolt. Our studs are threaded on top to allow for nut placement which will result in a more accurate torque of the head.

Rather than blowing your head gasket again, we highly recommend replacing your head gaskets with fasteners that have a proven track record of not stretching - so that you never have to deal with the exhaustive procedure of replacing another failed head gasket.

Technical Specifications

TENSILE STRENGTH	220,000 psi
PACKAGE CONTENTS	30x Heads Studs, 30x Nuts, 30x Hardened Parallel Washers, 2x Sockets, 2x Allen Wrench, 1x Fastener Assembly Lubricant & Instruction Manual.
VEHICLE FITMENTS	2004+ CHEVROLET GM 5.7L OHV V8 16V LS-1 GEN-III 2004+ CHEVROLET GM 4.8L OHV V8 16V VORTEC GEN-III / GEN-IV 2004+ CHEVROLET GM 5.3L OHV V8 16V VORTEC LS GEN-III / GEN-IV 2004+ CHEVROLET GM 6.0L OHV V8 16V VORTEC LS GEN-III / GEN-IV 2007+ CHEVROLET GM 6.2L OHV V8 16V VORTEC LS GEN-IV
FASTENER FINISH	Black oxide
HEAD STYLE	12-point
MATERIAL	XOTIC 7200 material properties allow for greater tensile strength compared to standard 8740 chromoly steel head studs.

Your Vehicle Deserves Better.

Xotic Performance was founded with the intention to fill the gap in the market for unwavering high quality auto parts. Too often auto parts stores sell ‘cheap and cheerful’ products that are worth only their weight as scrap. We intend to change that by supplying only the very best performance parts.

Installation Instructions Included with Drawn Diagrams

Use a thread sealer to lubricate block threads of the head studs (only applies if the cylinder head studs extend into the water jacket).
Screw studs as tight as can be made finger tight (no tool necessary), and install cylinder head.
Using THE FASTENER ASSEMBLY LUBRICANT included in the package, lubricate the head studs (ensure nuts and washers are lubricated as well).
Install the lubricated nuts and washer onto the head stud as tight as can be made finger tight (no tool necessary).
Using the torque recommendations in the manual, tighten the cylinder head bolts in 3 equal steps.

After Market Parts that Last.

We at Xotic Performance are experts and enthusiasts in the field of providing the highest quality of spare performance parts for your vehicle—you might even say that we ‘speak the language of performance’. Our unrivaled dedication to supplying only the very best products and our determination to build a strong relationship with each of our clients has allowed us to build a reputation for excellence in the industry that in incomparable to any other automobile parts store.