Subaru OEM EJ255 Short Block Subaru WRX 2006-2014 / Legacy GT / Outback XT 2007-2009 | 10103AC880

Supersession(s): 10103AB630, 10103AB930, 10103AC040, 10103AC0409Z. This brand - new, fully assembled 2.5 - liter EJ255 short - block comes straight from Subaru. It uses a - 24cc dish in the piston, giving a compression ratio close to stock for hybrid swaps. It was designed for D25 heads but can work with 2.0L S20 heads for hybrid setups. This is the factory block for many 2.5L WRX, Legacy GT, and Outback XT models. Unsure if it's right for you? Contact us with your VIN to check. Note, if you install it in a non - original car, there's no warranty. Subaru of America only warranties parts installed on a car with a matching VIN and by a certified Subaru dealership.

Using this Subaru EJ255 short - block is straightforward. First, if you're not sure it's the right fit for your car, contact us with your VIN. Once you've confirmed it's suitable, install it according to standard automotive procedures. If you're installing it in a car it wasn't originally designed for, be aware that there's no warranty. For warranty claims, make sure the part is installed by a certified Subaru dealership and the vehicle VIN matches the part. To maintain this short - block, follow regular engine maintenance practices like changing the oil at recommended intervals and keeping an eye on engine performance. If you notice any issues, have it checked by a professional mechanic right away.