Isky Racing Valve Spring Set Dual 4-Cyl L16 L18 L20B 510

DETAILS Isky racing dual valve spring set for Datsun 4-cylinder L13, L16, L18 and L20B . Chrome silicon dual springs, made in the USA. Set of 8 for 4-cylinder engines. Excellent spring for use with high performance aftermarket cams such as the Isky or Comp.  installed height of 1.7", 130#'s seat pressure, 280 # spring rate, 1.34" O.D., .748" I.D.

*Requires retainer PT# 800-1583