Post by
jeremy242 »
https://forums.nicoclub.com/jeremy242-u48821.html
Tue Dec 21, 2010 3:40 pm
Valves
si valves (not related to honda) 13201-40F00H intake 13202-40F01H exhaust $160 for all 12
SPrings ( made by pioneer)
Horsepowerparts.com RV-611-4 exhaust $1.48 a spring, RV-1034-4 intake $3.04 a spring
these are the outer springs use oem inners for a little bit stiffer spring set up.