All Supertech Performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance and durability at high RPMs. Using high-quality steel alloy also provides the added benefit of better structural memory for all of their springs. Supertech Performance valve springs are computer designed to ensure that wire stress levels do not overpass the limits ...

Skunk2 is proud to introduce its Alpha Valve Spring and Titanium Retainer Kits for Honda's B-series VTEC and K-series engines. Each kit includes Skunk2's high-quality dual valve springs and race-proven titanium retainers that are the result of nearly two decades of racing and engine building experience. Each Alpha Valve Spring is manufactured exclusively from super-clean, chrome-silicone wire ...

Buddy Club P1 Racing Dual Valve Springs allow for maximum lift while preventing valve float situations which can occur under high RPM, high-lift conditions. These valve springs are ideal for high-lift aftermarket camshafts and is a great combination with Buddy Club Titanium valve retainers. Please consider using genuine Buddy Club P1 Racing Dual Valve Springs and Titanium Retainers for Racing ...

BLOX Racing Valve Springs are wound using super clean, chrome silicone alloy.  These valve springs are designed and engineered for both high performance street driving and all-out racing conditions.  Each set provides maximum lift while preventing valve float and helps counter the effects of spring surge.  These are perfect for naturally-aspirated and forced-induction engines ...