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

Enhance the durability and performance of your Harley-Davidson M-Eight engine with the Feuling Parts Gorilla Rocker Shaft and Stud Kit. Engineered for extreme conditions and high-performance setups, this kit provides superior strength and reliability where it matters most.

Description

The Feuling Parts Gorilla Rocker Shaft and Stud Kit is meticulously engineered to provide unparalleled strength and longevity for your M-Eight engine. Unlike factory designs that machine away the entire end of the shaft, Feuling Parts utilizes custom tooling to create a precise countersink relief for the bolt/nut head. This innovative design maintains structural integrity, resulting in rocker shafts that boast over double the strength of standard factory components. Crafted from high-grade 4140HT steel and precision ground for exact fitment, these shafts are further enhanced with a gas nitrated and final surface treatment, ensuring exceptional wear resistance and durability under severe operating conditions. This heavy-duty rocker shaft kit is highly recommended for all M-Eight engines, especially those running higher lift camshafts and experiencing heavier valve spring pressures, providing the robust support needed for demanding performance upgrades. Designed and proudly made in the USA, the Gorilla Rocker Shaft kit ensures your engine's valve train can handle the rigors of high-performance riding.

Features & Highlights

• Superior Strength: Engineered with custom tooling for countersink relief, these shafts offer over double the strength of factory rocker shafts, significantly enhancing valve train durability.
• Premium Material: Precision ground from high-grade 4140HT steel, ensuring exceptional resilience and resistance to bending or breaking under extreme loads.
• Enhanced Durability: Gas nitrated and final surface treated for superior wear resistance and extended lifespan, even in high-stress engine environments.
• Optimized for Performance: Specifically recommended for all M-Eight engines, particularly those utilizing higher lift camshafts and heavier valve spring pressures.
• American Made Quality: Proudly designed and manufactured in the USA, guaranteeing top-tier craftsmanship and reliability.

Technical Specifications

• Material: 4140HT Steel
• Base Color: Silver
• Units: Set
• Measurement System: SAE