BEEHIVE VALVE SPRING KITS FOR EVOLUTION MODELS & TWIN CAM

• The centerpiece of both kits are the advanced COMP Beehive Valve Springs, which deliver a host of well documented benefits over conventional 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 fo the Beehive Valve Springs
• After enxtensive testing and research, the proper combination of parts has been identified and is now available
• Both kits utilize the Beehive Valve Springs, but the 61378 kit allows for use of the stock 7mm valves and stock locks and the 61377 kit is designed for ⁵/₁₆ valves and includes high performance 10(DEGREE) Super Locks for added strength

• 1.185"/1.45 4" O.D.
• .731"/1.00" I.D.
• 160# @ 1.8000" (.650 Lift)
• 140# @ 1.850" (.700 Lift)
• 400# @ 1.150"
• Coil bind 1.100"
• Spring rate 4000

Mid-USA Part Number: 61377

UOM: KIT