We specialize in Upgraded Subaru Rebuilt Engines. Our goal was to offer a very high quality engine at a fair price that people can afford. I think that we have achieved this goal. We build them in house, and each goes through the same process. The Subaru EJ2.5 Engine has an inherent “head gasket problem” and a “piston slap” problem , both of which we address.

We completely rebuild and resurface the cylinder heads. Each seat in the heads are cut with 3 angles and the valves are resurfaced. We resurface the heads with a milling machine which gives a much better finished surface than the spinning disc method which many rebuilders use. A milling machine has a cutter that goes back and forth over the head until it is clean (perfectly flat). If the cylinder head surface is not perfectly flat, the new head gasket will not seal properly. This can cause a head gasket failure. We also resurface every block with a milling machine. Some rebuilders do not resurface the block. We believe this to be a mistake, as one side of the head gasket is going on an non flat surface. We use a triple layered stainless steel head gasket coated in heat resistant Viton. They are made by 6 Star and are the best head gaskets we have ever seen made for Subaru. When the heads are assembled and complete, we vacuum test them to be sure that all of the valves are properly sealed.

If you ask rebuilders if the resurface the block, some will say “only if it needs it”. We believe this to be a mistake, as one side of the head gasket is going on an unflat surface. That can lead to a head gasket failure. Having resurfaced over 1300 Subaru Blocks, iI can assure you that every block needs resurfacing. Every block cleans up a little bit to a lot. We bore out every block with a Sunnen SV10 boring machine. It is a state of the art machine and cuts a perfectly round hole. The original Subaru piston has almost no skirt, causing the cylinder bore to wear in the middle, eventually causing “piston slap”. The Sunnen Sv10 can also cut the tight clearances that a subaru block requires.

The engine comes with a new Subaru High Volume Oil Pump. This is a 10 mm oil pump that Subaru uses in some of their EJ25 Turbo Engines. We use them on our non turbo engines for better oil flow. It also comes with OEM (original equipment manufacturer) seals. We do not install timing components as doing so would increase the engine cost. This would be an unnecessary cost for many that have recently replaced those parts and can swap them over from their old engine. For those that need to replace all timing components and water pump, we offer a KIT for $300 that includes all new OEM parts that ships separately.

This engine is built to order, and lead time varies. Call to get a current ship date estimate.