2004-2006 Subaru STI Ej257 with B25 Head Castings

Single AVCS Long Block Stock Rebuild


Price Is $5,200 Outright, Core Exchange Option Available With A Refundable Core Deposit Of $2,000*


These stock builds come with High Performance Special Anodized and MOS2 Coated Pistons with the Stronger Ring Lands, and include custom CP Pistons Gas Nitrated High Performance Piston Rings. They also come with King or ACL Main Bearings and Rod Bearings with refurbished rods and a rebuilt crank.


*Stage Up Builds In Stock!


We completely rebuild, machine, inspect and clean these blocks in-house using new stock aftermarket pistons, rings, recondition rods, rebuilt balanced crank, new aftermarket main and rod bearings


The parts we use have a compression safe stock OEM spec with an overall longevity and higher output rating than factory.  


We do have all EJ Engines in stock


*Core Deposit refundable after we receive your old engine and inspect it within 30 days, customer must pay for shipping to and from. Core exchange option at $3,200 does not include timing components, which is $300 more for stock.


Prices may change due to part fluctuation depending on time of order.


Looking to finance through Affirm? Find the listing at this link. Call us with any questions!


Get started by calling us at 1-877-GCH-SUBI (1-877-424-7824)


Or message here or email us at Georgescylinderhead@gmail.com


Give us a call at 1-877-GCH-SUBI (1-877-424-7824) For information about shipping and more, visit our Policies page.


2004-2006 Subaru STI Stock Rebuilt Long Block

  • We have three generations of engineering and craftsmanship in the field of stock and high performance machining and building.


    Everything is built in house, and our team has control over what leaves our shop.


    Each block goes through our rigorous inspection from start to finish, and we measure and inspect everything inside and out to make sure we are always within perfect tolerance levels. Our team makes all needed adjustments.

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