Description
This spring set from Kibblewhite is an OEM replacement for Norton 750/850 heads from 1966-1972, and 750 heads from 1968-1977. As always, spring pressure should be checked and verified on each head.
This set consists of 4pc outer springs and 4pc inner springs.
Seat pressure is 68# @ recommended installed height 1.280″. Maximum recommended valve lift is .410″. These springs are much higher quality than the current UK production and are made in USA.
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