Valve Spring Kit, Racing
By Percision Machine
The Norton high performance valve spring lit includes:
- Four 7075-T6 hard anodized retainers
- Four 15-deg. machined pairs of hard anodized 7075-T6 keepers
- Four double racing valve springs
- Four steel basewashers
Recommended installed height:
- Installed height - 1.420"
- Seat pressure for above installed - 105#
- Open pressure for above installed - 195#
- Max valve lift for above installed - .450"
This kit can be installed to except .520" valve lift @ recommended installed height of 1.300" which will produce a seat pressure of 140# and open pressure of 265# for racing applications.
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