DE 
NL 
Ferrea alloy endurance dubbele valve springs (Honda K-Serie engines)
Description
Our New Ferrea Valve Springs are processed with premium-grade alloy and feature special thermal treatment.
Our advanced spring design and material specifications, have uniform load & stress distribution even in the most extreme racing environment.
This New Valve Spring offers customers additional durability in all high revving applications at an affordable price.
-Developed from high strength alloys
-Springs are heat treated and stress relieved = increase in spring's life!
-Provide stability needed for high lift and high RPM.
-Minimizes load loss for today's aggressive valvetrain combo's.
"Harmonics or high frequency fatigue is present in ALL racing engines and will usually destroy the valvetrain if not controlled!
Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear."
IMPORTANT: All Valve Springs require Retainers and Spring Seat Locators.
Seat pressure: 80 lbs @ 40mm
Open pressure: 190 lbs @ 30mm
Max lift: 14mm
