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Our Stage 1 Short Block is ideal for your WRX, STi or later model Legacy GT. Your new short block is built from a brand new case from Subaru to ensure the highest of quality. We rate our Stage 1 Short Block up to about 500hp. Each block is cleaned, inspected, machined and built, IN-HOUSE. 

If you're suffering from a lost ringland or bearing failure, this is an excellent solution for you. 

The Mazworx Stage 1 EJ257 is built with the following components:

-NEW OEM EJ257 Block

-NEW OEM Forged EJ257 Crankshaft

-CP 99.5mm Forged Pistons

-Manley H Beam Connecting Rods

-ACL Race Rod and Main Bearings

You can expect to enjoy a smooth, reliable block. Have questions? We want to help. Feel free to give us a call at 407-281-1223 or shoot an email to martir@mazworx.com 

We will do our best to provide you with as accurate of a turn around time as possible.