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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...$374.87 -
Pro HD Dual Valve Spring & Retainer Kit LC Engineering has taken the guesswork out of choosing the right parts for your cylinder head! We have created a spring & retainer kit that comes with all the parts needed to upgrade your 2RZ or 3RZ cylinder head...$642.67 -
Pro Dual Valve Spring & Retainer Kit LC Engineering has taken the guesswork out of choosing the right parts for your cylinder head! We have created a spring & retainer kit that comes with all the parts needed to upgrade your 2RZ or 3RZ cylinder...$642.67 -
Pro Titanium Retainers LC Engineering offers CNC machined retainers made from high strength, heat-treated titanium alloy. Designed to add strength while offering weight reduction. Perfect for high RPM, street, and race applications. NOTE: These...$253.07 -
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)...$312.89 -
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...$137.96 -
Pro Titanium Retainer (Dual Spring) LC Engineering offers CNC machined retainers made from high strength, heat-treated titanium alloy. Designed to add strength while offering weight reduction. Perfect for high RPM, street, and race applications. It...$20.66 -
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...$164.75 -
Cam Follower Kit (Shim Under Bucket) Cam Followers (or Bucket Lifters) and Lash Caps are designed using the latest CATIA CAD software and Finite Element Analysis (FEA) for the high demanding conditions of endurance racing, road racing or drag racing...$460.56 -
LC Engineering Oil Cap (Billet / Black) Give your engine a little "zing" under the hood with this all-new black anodized Oil Cap. Our unique caps are all made from quality 6061 T-6 aluminum billets, CNC machined with a black anodized finish. NOTE:...$32.08 -
PCV Valve (OEM) This is a factory replacement PCV valve. Contact our Tech Support Line for further information at 928-575-2174. Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact...$9.59 -
Pro Valve Shim (8mm Under Bucket / 1.45mm - 1.80mm) LC Engineering upgraded cam buckets re-locate the valve shim from the top of the bucket to underneath the bucket. When the shims get re-located, you will have to change the shim to these under bucket...$6.43
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