Star Racing M8 PSI Valve Springs up to 640 Lift, Ti Retainers, Billet Keepers, Valve Seals Kit for Triple Groove 640SK

Product Description

New M8 Spring Kit PSI Valve Springs up to 640 Lift, JHE Titanium Retainers exclusive to this new spring design, Trend Billet Steel Triple Groove Locks, Lower Collar with Valve Seal. This kit will fit any cam and any triple groove valve.