Dual Valve Spring Kit with Forged Stainless Steel Race

The Supertech Valvetrain Super Combo is engineered for K-series engines, leveraging over 20 years of Supertech Performance's manufacturing experience in racing valves and valvetrain components. This "ultimate valvetrain combo" aims to provide superior performance and durability through its carefully selected components. The kit comprises 32 dual valve springs constructed from premium Superclean Chrome Silicon Vanadium Steel Alloy, designed for high performance and longevity under extreme conditions. Optional spring seat pressures are available, including the specified 80lbs for this particular model. It also includes 16 race valves forged from SAE EV8 (UNS S63008) stainless steel, offered in both flat and dished profiles to suit different applications, with heat treatments tailored for street performance or heavy-duty racing. The package is further enhanced by 16 titanium retainers, CNC-machined from 6AL4V grade titanium, which help prevent valve float and add strength to the valvetrain. Precision-machined magnesium bronze valve guides are included for optimal performance and durability when paired with the valves. Finally, reduced outer diameter Viton valve stem seals are provided, ideal for applications using dual valve springs or requiring clearance considerations. This kit is generally recommended for street use or mild performance builds when selecting the 80lb spring option, according to Supertech's guidance for K-series engines.