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"

Note:
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.

This page was written and designed by F. H. Eaton & Associates if you have any questions or comments please contact us at info@fheaton.com