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Fits all SR20s with provisions for oil squirters.

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

Price per Valve.

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) ...

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

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.

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

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.

Send us your rocker arms and we will machine them for dual guides.  This service is for a set of 8 rockers. If you already have extra guides that will replace the shim, you can also send them in to get ground to match the respective shim they are replacing.  Just select the option.  Please include the shim and replacement guide with the rocker and label the position on the bag. If you need guides, select the option to include new OEM guides and we will grind them...

OEM Nissan Rocker Arm.You have the option for us to grind it for dual guide conversion.

Made from 1/2" 6061-T6 and sized at 24" x 24", this adapter plate gives you the correct pattern to mount a GM bell housing to your SR20 RWD block.  This plate also stands the engine straight up instead of it's normal lean to the exhaust side.  This is used in chassis drag cars.  You will have to trim the outside profile to match your chassis.  Comes with engine bolts.