To maximize the performance of your V-Twin-powered Harley, VThunder® has released two new Beehive™ Valve Spring Kits designed as drop-in performance valve train upgrades.
The centerpiece of both kits are the advanced COMP Cams® #26056 Beehive™ Valve Springs, which deliver a host of well documented benefits over conventional cylindrical valve springs. With the limited valve spring installed height of the Harley V-Twin engine, small spring pocket and today’s higher lift cams, the VThunder® engineers faced a challenge in designing an all-inclusive kit that would provide proper installation of the Beehive™ Valve Springs. After extensive testing and research, the proper combination of parts has been identified and is now available to all VThunder® customers. Both kits utilize the #26056 Beehive™ Valve Springs, but the #9709-Kit allows for use of the stock 7mm valves & stock locks and the #9708-Kit is designed for 5/16-inch valves and includes high performance 10-Degree Super Locks™ for added strength.
For more information on any VThunder® product contact your local dealer, visit us online at
www.vthunder.com or call 1-800-967-1066.
#26056 Spring Specifications
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O.D. 1.185”/1.454”
I.D. .731”/1.00”
160# @ 1.800” (.650 LIFT)
140# @ 1.850” (.700 LIFT)
400# @ 1.150”
Coil Bind 1.100”
Spring Rate 400
VThunder™ Beehive™ Valve Spring Kits For Harley V-Twin Engines
#9708-KIT
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26056-4 Beehive™ Valve Spring
1756-4 Steel Retainer (5/16-inch valve size)
4696-4 Spring Seat .570 guide
618-4 10-degree .310 Super Lock™ w/ Lash Cap Recess
*#705-4 retainers can be used with 5/16 valves for an additional .050” installed height.
#9709-KIT
(Buy Now)
26056-4 Beehive™ Valve Spring
1757-4 Steel Retainer (7mm valve size)
4696-4 Spring Seat 1.550 O.D., .585 I.D., .060 Thick
*works with stock 7mm valves & stock locks
Features & Benefits:
• Increased revving (rpm) capability and valve control
• No rocker box clearance problems; easy install kits
• Engineered to maximize “harmonic resistance”
• Handles spring harmonics throughout a wide rpm band
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