Valve Spring Inner and Outer 240Z 260Z 280Z 280ZX 510

New valve spring for Datsun 240Z, 260Z, 280Z, 280ZX and 510 1968-1983. Fits all "L" series 4 and 6 cylinder engines.  Each valve uses one inner and one outer spring.  Stock replacement spring. High quality, Made in USA.   Choose from inner or outer, sold individually.

Dual Spring Specs:

# @ 40mm installed height: 80#

# @ 30mm height: 160#

Coil bind at 25.9mm height (.555" lift from installed height to bind)