This spring kit from Rocket Motorsports have been tested in a variety of applications, you will have no problems with valve float at high rpm with this HD spring set. We use these exclusively in the shop on all cylinder head builds we do. The H series XL springs will not let you down, we have used them on many of the projects that have come through the shop over the years. If it is a street car, weekend racer, or dedicated race car this spring kit as never failed us. We have personally used in applications with cam profiles such as pro3 and M25XX without worry.
Available for H and F series DOHC Vtec cylinder heads.
Included in kit;
Rocket H series XL Springs (Japanese Wire Wound in USA)
Titanium Valve Retainers
Forged Valve Locks
Viton Intake seals
Viton Exhaust Seals
XL 67 lbs at 1.400″; 206 lbs at 0.900″ Lift; Coil bind @ 14mm