top of page

We sell brand new aftermarket EJ257 SINGLE AVCS Cylinder Heads that you can purchase out-right or buy with a package. They come bare for $500 EACH HEAD *To Purchase both side heads, select one side and add to cart, then go back and add the other side to cart and then check out. ** NOTE: THESE HEADS DO NOT FIT ANY EJ255 (AKA "D25 CASTING HEADS") APPLICATION UNLESS YOU INTEND FOR OFFROAD NON SMOG PURPOSES Price is: $500 (each head) *not including sales tax or shipping Does not come with heavy duty cases, those are purchased on the side for $150 for both See our Head Packages for more combinations SHIPPING: Shipping will not be charged during this online purchase, it will appear as “free” during the check out page but the charge will be calculated, added on to your invoice and balance will be due once your order has been completed. Depending on your location, shipping can take 1-2 weeks. The tracking number will be provided upon request. Prices may change due to part fluctuation depending on time of order. Get started by calling us at 1-877-GCH-SUBI (1-877-424-7824) Or message us here or email us at:


PriceFrom $500.00
  • 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.

    • 2003 Subaru STI (LATE MODEL)

    • 2004 Subaru STI

    • 2005 Subaru STI

    • 2006 Subaru STI

    • LEGACY GT (If replacing with "B25 CASTING HEADS")

    • FORESTER XT (If replacing with "B25 CASTING HEADS")