BEEHIVE VALVE SPRING KITS FOR EVOLUTION MODELS & TWIN CAM
WEIGHT: 1.28- 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 EXTENSIVE 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
- 1.185"/1.454" O.D.
- .731"/1.00" I.D.
- 160# @ 1.800" (.650 LIFT)
- 140# @ 1.850" (.700 LIFT)
- 400# @ 1.150"
- COIL BIND 1.100"
- SPRING RATE 400
V-THUNDER
FITS BIG TWIN EVOLUTION 1984/1999 , TWIN CAM 1999/2004 & SPORTSTER 1986/2003
BY: COMPETITION CAMS