Northwest Subie Specialists

Six-Star® Head Gaskets

Six-Star® Head gaskets are a multi-layer steel (MLS) head gasket engineered to ensure years of longevity for your Subaru. OE gaskets are only a single layer steel.

We believe so strongly in these gaskets that we exclusively use Six-Star® brand head gaskets on all the Phase 2 EJ2.5 engines we repair. They’ve been around for over a decade and we’ve seen less than a 1% failure rate on them, that 1% excludes outside influences of radiator failures, hose failures etc.
In comparison to the single layer head gaskets your Subaru originally was equipped with, Six-Star® head gaskets are comprised of multiple layers of stainless steel which provide added strength, increased resiliency, and improved corrosion resistance. The outer layers of the gasket are embossed and coated with flouroelastomer rubber-based material (FKM/Viton) to provide a superior seal compared to OEM or other Aftermarket gaskets.


We all know that head gasket failure is one of the biggest headaches you’ll ever run into on your Subaru. We only use Six-Star® gaskets when we perform a head gasket repair because we want it to be the last time you ever have to replace your head gaskets.


We can usually complete head gasket jobs in 1-2 days. This is because we do everything in-house. No more waiting on the machine shop to get your heads resurfaced or rebuilt. None of our competitors do this. Not even the dealerships do this. We have a head milling machine in-house to resurface heads and blocks, and we’ve also invested in tooling to fix valve guides and perform valve jobs. We are trained machinists on top of being fully trained Subaru Technicians. Why do we do this? A lot of machine shops will take off more material than needed when resurfacing your heads, which causes more heat to build up. That is obviously the last thing you would want for a vehicle that is notorious for Head Gasket failure. By doing everything in house we can ensure work is done to our extremely high standards.