Feuling M8 Endurance Beehive Valve Spring Kit - .565" Lift - 1107

Upgrade your V-Twin engine's valve train with the Feuling Parts Endurance Beehive® Valve Spring Kit. Designed for high-performance applications, this kit delivers enhanced valve control and durability. Experience the difference in power and reliability with this premium valve spring kit.

Description

The Feuling Parts Endurance Beehive® Valve Spring Kit is engineered to withstand the extreme demands of high-performance V-Twin engines. These direct bolt-in replacements eliminate the need for machining or rocker box clearancing, making installation straightforward. Constructed from premium-grade, high-tensile chrome silicon single-conical ovate wire, these springs are shot-peened and feature a specially processed thermal heat treat and super NexTex® finish. This ensures exceptional fatigue life and consistent performance. The kit is designed for up to 0.565" lift and fits stock 6.00 mm valve stems with triple grooves, providing optimal valve train dynamics and increased engine reliability. Made in the USA.

Features & highlights

• Direct bolt-in replacement – no machining or rocker box clearancing needed.
• Manufactured from premium-grade high tensile chrome silicon single-conical ovate wire for superior strength.
• Shot-peened with thermal heat treatment and NexTex® finish for enhanced fatigue life.
• Designed for high-performance V-Twin engines, supporting up to 0.565" lift.
• Fits stock 6.00 mm valve stems with triple grooves.
• Includes necessary components for a complete valve spring upgrade.
• Proudly made in the USA.

Technical specifications

• Brand: Feuling Parts
• Application: Exhaust, Intake
• Material: Chrome-Silicon
• Valve Stem Fitment: 6.00 mm with triple groove
• Max Lift: 0.565"
• Seat Load: 134 lb @ 1.375" (0.405" lift)
• Open Load: 226 lb @ 0.970"
• Coil Bind: 0.920"

Important to know

This kit includes Endurance Beehive® valve springs, machined spring seats, seat shims, valve locks, and Viton® valve seals. Titanium retainers are included where noted. Collar Material is not included.