
Beehive Valve Spring Kit Big Twin 2005/Later* Uw 7Mm Valves & Oe Locks 9709-Kit
Beehive Valve Spring Kit Big Twin 2005/Later* Uw 7Mm Valves & Oe Locks 9709-Kit 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° Super Locks for added strength Spring Specifications 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