Spring Seat / Shim (Dual Springs) The LC Engineering 5VZ/1GR Pro Dual Valve Spring Seats are designed to be used with the Pro Dual Valve Springs. NOTE: Sold individually. This product should not be used in a manner that violates Federal EPA Laws...

Spring Seat Shim Set (Single Spring / .025″) Hardened Valve Spring Shims for 2RZ and 3RZ with Single Street Performer Valve Springs. NOTE: Sold as a set of (16). Contact our Tech Support Line for further information at 928-575-2174...

Street Performer Valve Springs These Street Performer valve springs are an excellent choice for a mildly built engine running naturally aspirated or low boost (0-10lbs). We recommend these for use with our Pro series or Stage 2 Camshafts steps. They...

Street Performer Valve Springs These Street Performer valve springs are an excellent choice for a mildly built engine running naturally aspirated or low boost (0-10lbs). We recommend these for use with our Pro series or Stage 2 Camshafts steps. They...

Pro HD Dual Valve Springs (High RPM / High Boost) If you're building a 2.4L 2RZ-FE or a 2.7L 3RZ-FE these Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 100lbs of seat pressure at a 1.400" install...

Pro Dual Valve Springs (Naturally Aspirated / Low Boost) The Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 75lbs of seat pressure at a 1.400" install height and open pressure of 215lbs (at .450"...

Pro HD Dual Valve Springs (High RPM / Boost) The Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 100lbs of seat pressure 1.400" install height and open pressure of 225lbs (at .450" lift) they will...

Dual Valve Springs (Naturally Aspirated / Low Boost) If you're building a 2.4L 2RZ-FE or a 2.7L 3RZ-FE these Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 75lbs of seat pressure (1.4″ install height)...

Spring Seats (Dual Spring) Hardened Valve Spring Shims for 2RZ and 3RZ Street Performer Dual Valve Springs. NOTE: Sold as a set of (16). Contact our Tech Support Line for further information at 928-575-2174. Note: Images are for...

Spring Seat / Shim (Dual Springs) This LC Engineering 5VZ/1GR Pro Dual Valve Spring Seat Set is designed to be used with our Pro Dual Valve Springs. NOTE: Sold as a set of (24). Contact our Tech Support Line for further information at...