Supertech

This valvetrain kit is for the P12 SR20VE heads (8H6) with 5.5mm valve stems. Basic kit comes with Titanium Retainers, Dual Valve Springs and Inner Spring Seats.  The P12 head, from the factory, came with single springs, so you will need inner spring seats to run dual valve springs. Choose your upgrades. For all motor applications, we recommend not going higher than 83lb springs.

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. These fit all SR20s except the P12 8H6 head with 5.5mm valve stems.