Feuling Parts Gorilla Rocker Shaft and Stud Kit for M-Eight

Elevate the performance and durability of your Harley-Davidson M-Eight engine with the Feuling Parts Gorilla Rocker Shaft and Stud Kit. Engineered for superior strength and reliability, this kit is an essential upgrade for any rider seeking enhanced valve train integrity, especially when running higher lift camshafts and increased valve spring pressures.

Description

The Feuling Parts Gorilla Rocker Shaft and Stud Kit is meticulously designed to significantly outperform factory components, offering over double the strength for demanding M-Eight engine applications. Crafted from high-grade 4140HT steel, each component undergoes a precise grinding process before being gas nitrated and final surface treated. This advanced treatment not only enhances surface hardness but also provides exceptional wear resistance, crucial for the intense operational environment of a high-performance motorcycle engine. Feuling's innovative custom tooling creates a countersink relief for the bolt/nut head, a superior design choice compared to the factory method of machining away the entire shaft end. This thoughtful engineering ensures maximum material integrity and structural strength, preventing common points of failure under extreme conditions. Ideal for engines running higher lift camshafts and heavier valve spring pressures, this robust rocker shaft and stud kit delivers unparalleled valve train stability and longevity. Proudly Made in the USA, it represents Feuling Parts' commitment to quality and performance for your Harley-Davidson M8.

Features & Highlights

• Unmatched Strength: Engineered from robust 4140HT steel, these rocker shafts and studs offer over double the strength of standard factory components, ensuring superior durability under extreme engine loads.
• Optimized Design for Durability: Features custom tooling that provides a countersink relief for the bolt/nut head, preserving the shaft's structural integrity over the factory's less robust machining method.
• Advanced Surface Treatment: Each component is precision ground, gas nitrated, and then final surface treated for enhanced hardness, wear resistance, and extended service life.
• High-Performance Compatibility: Recommended for all M-Eight engines, especially those utilizing higher lift camshafts and heavier valve spring pressures, to maintain optimal valve train stability.
• Proudly American Made: Manufactured in the USA, ensuring premium quality, precise engineering, and reliable performance that riders trust.

Technical Specifications

• Product Type: Rocker Shaft/Stud/Nut Kit
• Material: 4140HT Steel
• Base Color: Silver
• Measurement System: SAE
• Vendor Part Number: 1232