P1 | CHRYSLER GEN III HEMI ROCKER STUD KIT - FOR MANTON ROCKER ARM SYSTEM, 12PT NUTS, S220 SERIES, BLACK OXIDE FINS

P1 Chrysler Gen III HEMI Rocker Stud Kit – Manton Rocker Arm System – S220 Series – Black Oxide Finish

Part Number: K033-S01S

Upgrade the valvetrain fastening system in your Gen III HEMI with the P1 Chrysler Gen III HEMI Rocker Stud Kit, engineered specifically for engines fitted with a Manton rocker arm system.

Manufactured from premium P1 S220 Series material, this high-strength rocker stud kit is designed to provide exceptional clamping force and dependable rocker-system retention in demanding high-RPM and high-horsepower applications.

A performance HEMI valvetrain can place substantial loads through the rocker system, particularly when running aggressive camshaft profiles, increased valve spring pressures and elevated engine speeds. Upgrading to purpose-built P1 studs provides additional security and more consistent fastening compared with relying on conventional hardware in these extreme applications.

The kit is supplied with 12-point nuts, providing excellent tool engagement while offering improved clearance around tightly packaged aftermarket valvetrain components. A durable black oxide finish provides corrosion resistance and the clean, professional appearance expected from premium engine hardware.

Features & Benefits

• Designed for Chrysler Gen III HEMI engines
• Specifically engineered for Manton rocker arm systems
• Manufactured from premium P1 S220 Series material
• High-strength construction for demanding valvetrain applications
• Provides consistent rocker-system clamping force
• Ideal for increased valve spring loads and high-RPM operation
• Stud design provides secure and repeatable valvetrain assembly
• Supplied with premium 12-point nuts
• 12-point design provides excellent tool engagement
• Improved tool clearance around performance rocker systems
• Black oxide finish for corrosion resistance
• Precision-manufactured for reliable fit and repeatable installation
• Suitable for serious street and motorsport engine combinations

Technical Specifications

• Product Type: Rocker Stud Kit
• Engine Family: Chrysler Gen III HEMI
• Rocker System: Manton Rocker Arm System
• Fastener Type: Rocker Stud
• Nut Style: 12 Point
• Material: P1 S220 Series
• Finish: Black Oxide

What’s Included

• Complete P1 S220 Series rocker stud set
• Matching 12-point retaining nuts

Applications

• Chrysler Gen III HEMI engines
• Gen III HEMI engines fitted with Manton rocker arm systems
• High-performance street HEMI builds
• Drag racing engines
• High-RPM competition engines
• Naturally aspirated combinations
• Turbocharged HEMI applications
• Supercharged HEMI applications
• Nitrous-assisted combinations
• Engines using increased valve spring pressure or aggressive camshaft profiles

Important Installation Notes

This stud kit is designed specifically for Gen III HEMI engines equipped with the Manton rocker arm system. Confirm rocker system compatibility before ordering.

Correct rocker-system installation, fastener preload and valvetrain geometry are critical in a performance HEMI. Always follow the installation and torque specifications supplied by P1, Manton or your engine builder.

Threads, mating surfaces and retaining hardware should be clean and free from damage before assembly.

Why Upgrade Your Rocker Hardware?

Performance valvetrains operate under substantial dynamic loading. Increasing engine RPM, valve lift, camshaft acceleration or valve spring pressure places additional stress on the rocker arms and their mounting hardware.

A high-strength rocker stud kit helps maintain consistent component location and clamping load, reducing the potential for unwanted movement within the rocker assembly and providing additional confidence in demanding race-engine applications.

Why Choose P1 Fasteners?

P1 fasteners are engineered for professional engine builders, performance workshops and racers who demand premium strength and consistent clamping force from critical engine hardware.

The S220 Series is designed for extreme performance applications where increased material strength, precision manufacturing and dependable retention are required.

Why Buy From Prime Speedworks

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

From Gen III HEMI head and main studs through to rocker-system hardware, cam bolts, balancer bolts and specialty fasteners, Prime Speedworks can help supply the correct P1 hardware for serious Mopar performance combinations.