P1 | Chevrolet LS Head Stud Kit – Dart Iron LS Next – 23 Studs Per Head – S220 Series

P1 Chevrolet LS Head Stud Kit – Dart Iron LS Next – 23 Studs Per Head – S220 Series

Part Number: K003-H14S

Upgrade cylinder-head retention in your high-performance LS combination with the P1 Chevrolet LS Head Stud Kit, engineered specifically for Dart Iron LS Next blocks using the 23-stud-per-head configuration.

Designed for serious naturally aspirated, turbocharged, supercharged and nitrous-assisted applications, this kit uses 7/16" P1 S220 Series studs to provide the clamping strength and consistency required in engines operating at elevated cylinder pressure and power levels.

The additional fastener locations used in the Dart LS Next architecture help improve cylinder-head sealing and load distribution compared with conventional LS configurations. Combined with P1’s premium S220 hardware, this kit provides a purpose-built solution for race engines where head gasket integrity and repeatable fastener preload are critical.

Supplied with 12-point nuts and finished in black oxide, the kit delivers a strong, professional and race-ready head-fastening package.

Features & Benefits

• Designed specifically for Dart Iron LS Next blocks
• 23-stud-per-head configuration
• 7/16" head studs
• P1 S220 Series high-strength construction
• Designed for extreme cylinder-pressure applications
• Helps improve and maintain cylinder-head clamping force
• Supports improved head-gasket sealing
• Supplied with premium 12-point nuts
• Black oxide finish
• Precision-manufactured for consistent fit and installation
• Suitable for high-horsepower LS race combinations
• Ideal for naturally aspirated, turbocharged, supercharged and nitrous engines

Technical Specifications

• Product Type: Cylinder Head Stud Kit
• Brand: P1
• Part Number: K003-H14S
• Engine Family: Chevrolet LS
• Block Application: Dart Iron LS Next
• Stud Diameter: 7/16"
• Stud Configuration: 23 Studs Per Head
• Fastener Series: S220
• Nut Style: 12 Point
• Finish: Black Oxide
• Application: High-Performance / Competition LS Engines

What’s Included

• Complete P1 S220 head stud set for both cylinder heads
• Matching 12-point nuts
• Precision washers where required

Applications

• Dart Iron LS Next blocks
• High-horsepower Chevrolet LS engines
• Drag racing applications
• Naturally aspirated competition engines
• Turbocharged LS combinations
• Supercharged LS engines
• Nitrous-assisted combinations
• High-RPM race engines
• Engine builds requiring 23-stud-per-head retention

Why Use a 23-Stud Head Configuration?

High-output LS engines can generate enormous cylinder pressure, particularly in boosted and nitrous-assisted applications.

The 23-stud-per-head arrangement increases the number of clamping points around the cylinder head, helping distribute load more evenly and support improved head-gasket sealing under extreme conditions.

When combined with a Dart Iron LS Next block and premium P1 fasteners, this configuration provides a strong foundation for serious race-engine combinations.

Why Choose P1 S220?

P1 S220 fasteners are engineered for demanding motorsport applications where material strength, consistency and repeatable preload are essential.

The S220 Series is designed to provide the strength required in high-cylinder-pressure environments while maintaining the precision required for professional engine assembly.

For serious LS builds, head fasteners are not an area to compromise.

Important Installation Notes

This kit is designed specifically for Dart Iron LS Next blocks using 7/16" studs and the 23-stud-per-head configuration.

Always confirm cylinder-head compatibility, block configuration and gasket arrangement before ordering.

Correct lubrication, tightening sequence and torque procedure are critical to achieving the intended fastener preload. Follow current P1 installation specifications or the recommendations of your engine builder.

Why Buy From Prime Speedworks

Prime Speedworks supplies P1 performance fasteners to engine builders, performance workshops, racers and race teams throughout Australia.

From LS head and main stud kits through to balancer bolts, cam hardware and specialty engine fasteners, Prime Speedworks can help match the correct P1 hardware to your engine combination and performance goals.