NAS Performance

Everyone knows our EJ25 SOHC engines, but did you know we also build max effort NA and turbo DOHC setups too? From street cars to full race applications, we’ve got experience across the entire Subaru platform. We also ship worldwide with specialized crating to ensure every engine arrives safely and ready to go.

Monster EZ30R turbo longblock build underway for a high-RPM drift setup! This one is getting the full NAS treatment. 👊

The foundation starts with a closed-deck block, paired with 9.7:1 CP pistons and I-beam rods built to handle serious boost and RPM. The crankshaft will be nitride heat treated and superfinish polished for maximum durability and reduced friction at high engine speeds.

Up top, the heads will receive full port work along with a complete Kelford valvetrain and AVLS delete billet cams designed for aggressive power delivery and sustained RPM. We’re also adding upgraded head studs plus a high-capacity baffled oil pan to keep oil control in check during hard drifting conditions.

This thing is going to be an absolute animal. 🔥 Stay tuned for progress updates!

We’ve got more H6 builds going on right now than ever before, and honestly we can hardly believe it. The support has been incredible. We’re getting absolutely maxed out on shop space and labor capacity 😂

It’s awesome seeing so many people wanting to push the H6 platforms to the next level, and we’re excited to keep building some wild combinations for you guys.