Part Description
Fits Evolution Sportster 2004-2022 & Twin Cam 2005-2017Also fits Evolution Big Twin 1984-1999, Evolution Sportster 1986-2003 and Twin Cam 1999-2004 that have been equipped with late style valves with 7mm stem. Beehive Spring Kit for use with up to .650" valve lift. Seat pressure 178 lbs. Comes with CNC machined Extreme Duty 9 degree locks. These Beehive springs will coil bind as late as at 1.150" lift, which is much later as with regular valve spring kits. This kit must be used with AV&V valve seals ZPN 749017., Replacement valve locks, set of 4 pair
Text excerpt from the catalog:
AV&V's extreme duty valve spring kits contain valve springs manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided. Kits come with retainers and keepers as specified below.
Please note that returns and exchanges of "Special Offers" are excluded (see Terms and Conditions).
