Supertech

This valvetrain kit is for the SR20DE/DET heads except the GTi-R. Basic kit comes with Titanium Retainers and Single Springs. Choose your upgrades. If you have hydraulic pivots, we recommend not going higher than 90lb springs. If upgrading your valve size, we recommend going with the 6mm stem exhaust valves. This will require replacing the valve guides.

This valvetrain kit is for the P11 SR20VE heads (1N5).  If you plan to upgrade your P12 (8H6) head, you much change the valves and valve guides. P12 head cams with 5.5mm valve stems.  We recommend converting to the 6mm valves when going turbo.Basic kit comes with Titanium Retainers and Dual Valve Springs. Choose your upgrades. For all motor applications, we recommend not going higher than 93lb springs.

All Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of valve springs.Supertech dual valve springs are designed and manufactured to reduce valvetrain harmonics, increase durability, and provide an increase in performance for your high performance racing engine.

Our Valve Guides are precision-machined from high quality Manganese Bronze material.For Exhaust guides for high powered engines that need a better thermal transfer coefficient, Supertech uses a copper alloy. Copper has about 3 times higher thermal transfer than Manganese Bronze

Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit. Supertech's high quality retainers are among the best in the industry.

Price is for each. Fits Nissan 6mm stem valves common in these motors:SR20DETSR20VE P11All RBsAll VQsCA18VG30VK56VR38

Price is for each. Choose your valve stem size. VS-N5.5E fits Nissan 5.5mm stem valves common in these motors:SR20VE P12 (Fits intake and exhaust side) VS-N6E fits Nissan 6mm stem valves common in these motors:SR20DESR20VE P11RB20/RB25All VQsCA18VG30VK56VR38 VS-N7E fits Nissan 7mm stem valves common in these motors:SR20DETKA24DE (Fits intake and exhaust side)RB26TB48 (Fits intake and exhaust side) ...

Needed for Dual Valve Spring applications.6mm Valve Stem.7mm to 6mm Valve Conversion.

Needed for Dual Valve Spring applications.SR20DET Exhaust with 7mm valve stem.

Supertech Intake Valve for the Nissan SR20DET (non-GTiR or 54C), Standard Size.

Supertech Intake Valve for the Nissan SR20DET (non-GTiR or 54C), +1mm Size.

Supertech Intake Valve for the Nissan SR20VE (P11 or 1N5), +1mm Size.  Can be used on the P12/8H6 head if you change the guides.

Supertech Intake Valve for the Nissan SR20VE (P11 or 1N5), Standard Size.  Can be used on the P12/8H6 head if you change the guides.

Supertech Inconel Exhaust Valve for the Nissan SR20DET (non-GTiR or 54C), Standard Size.

Supertech Inconel Exhaust Valve for the Nissan SR20DET (non-GTiR or 54C), +1mm Size.

Supertech Inconel Exhaust Valve for the Nissan SR20DET (non-GTiR or 54C), +1mm Size with 6mm Stem.  Must use 6mm conversion guides.

Supertech Inconel Exhaust Valve for the Nissan SR20VE (P11 or 1N5), Standard Size.  Can be used on the P12/8H6 head if you change the guides.

Supertech Inconel Exhaust Valve for the Nissan SR20VE (P11 or 1N5), +2mm Size.  Can be used on the P12/8H6 head if you change the guides.

These fit all SR20 heads except the 8H6.  Sold as each. Supertech Valve Guides are precision-machined from high quality Manganese Bronze material. Supertech Valve Guides are designed to be used in combination with Supertech low friction black nitrided valves to provide the best solution for both performance and durability.