Feuling Twin Cam Econo Beehive Valve Spring Kit - .585" Lift - 1121

Upgrade your engine's performance with the Feuling Parts Econo Beehive® Valve Spring Kit. This kit is engineered to deliver improved valve train dynamics and increased RPM potential, ensuring your engine performs at its peak.

Description

The Econo Beehive® Valve Spring Kit from Feuling Parts is designed for high-performance engines. These valve springs are crafted from heat-treated chromoly conical ovate wire, ensuring exceptional durability and resistance to wear. Each spring is meticulously measured and labeled, guaranteeing precise coil bind and optimal open height. The kit features lightweight 7° steel or titanium retainers that significantly reduce valve weight, promoting quicker revs and smoother engine operation. Dyno and track-tested, this kit is a proven upgrade for enthusiasts and professionals alike. It's a direct replacement kit, so no machining or rocker box clearance is required for cams up to 0.574" lift for '84-'04 Big Twin and '86-'03 XL, and up to 0.585" lift for '05-'17 Twin Cam models. The springs are designed to handle the demands of performance engines with 1486cc and smaller displacement.

Features & highlights

• Constructed from heat-treated chromoly conical ovate wire for superior strength and durability.
• Lightweight 7° steel or titanium retainers reduce valve weight, improving engine responsiveness.
• Precision-engineered for optimal coil bind and valve open height.
• Includes premium Viton® valve seals with a spring-loaded valve stem wiper system.
• Direct replacement kit – no machining or rocker box clearance required for specified cam lifts.
• Dyno-proven and track-tested for reliability and performance.
• Made in the USA.

Technical specifications

• Brand: Feuling Parts
• Type: Valve Spring Kit
• Material: Chromoly
• Retainer Material: Steel/Titanium
• Max Lift: Up to 0.585"
• Seat Load: 183 lb @ 1.760"
• Open Load: 380 lb @ 1.250"
• Coil Bind: 1.180"
• Application: Exhaust, Intake

Important to know

Feuling® Beehive® valve springs must be installed at the correct open height, matching max lift to the open height specification of the valve springs. This kit is designed for engines with 1486cc and smaller displacement. Verify compatibility with your specific engine and camshaft combination before installation.