Reference: shspeed
Reference: shspeed
Additional inner spring set (set = 2 pieces)
These valve springs are inserted into the original and strengthen them.
These springs are suitable for engines which have been easily machined (e.g., RPM controllers removed).
Reference: 1688
Reference: 1589A
Reference: 1570A
Reference: 2250A
Reference: 2262
Reference: 1694
Reference: 2210A