Beehive Valve Spring Kit Big Twin 84 / 2004 Sportster 86 / 03 Steel Valve Collars 9708-Kit

Beehive Valve Spring Kit Big Twin 84 / 2004 Sportster 86 / 03 Steel Valve Collars 9708-Kit

61377
$239.51
$239.51
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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
SPRING SPECIFICATIONS:
  • 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