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**Prices and Parts may change due to extreme fluctuation of supply and demand at time of order. Contact us for the latest pricing and part availability


Stage 1 Long Block Package starts at $5,000 WITH a rebuildable core exchange or we can rebuild your engine plus to and from shipping if needed

625BHP rating with our GCH Spec Forged Rods OR the H-TUFF Rod Upgrade

See our Core Exchange method below for more info, or give us a call or email.


Security Deposit starts at $500 may change according to purchase amount (goes towards build) *** NOTE, the security deposit with or without upgrades is NON-REFUNDABLE due to us ordering the parts, getting started with labor and choosing cores to work on to ensure the fastest lead time. Call us for any questions. 

. This price is reflected in your CART as your security deposit. Note this is not the final price as noted above. Once you get started on here with a $500 security deposit, we will invoice you with a full break down.


*Credit/Debit card accepted for non-refundable deposit. We will contact you for payment arrangements via wire transfer and/or bank deposit only. Payment installments can be arranged!

  • Now accepting Zelle® payments to:

Engine code fitments:
EJ (205,255,257,257B) *EJ205 has a different BHP rating given the open deck design.

(Long block engine only. No accessories)


Prices for any Stage 1 as follows:

  • EJ 205 = $7,200 *Outright price (no core exchange) does not include timing, shipping or sales tax
  • EJ 255,257 = $7,500 *Outright price (no core exchange) does not include timing, shipping or sales tax
  • EJ257B (Dual AVCS W25 Castings) = $8,000
  • FA20 Engines = $8,000 Outright Price (no core exchange) does not include timing, shipping or sales tax


Core Exchange Option:

IF YOU CHOOSE TO DO A CORE EXCHANGE AND ADD TO AND FROM SHIPPING, WE CHARGE A CORE DEPOSIT, which is refundable depending on the amount of damage your engine core sustained* after we receive your core and inspect it for damages within 30 days. *Customer must pay for core shipping and core deposit before we ship out our engine.

*If you would like to send us your old core you may through our Core Return Shipping Method, and be eligible for a core return refundable deposit. You must contact us the same week the order is placed to implent this program, or else core charge will be use to purchase another engine to keep our production going.


Call us for any questions about core exchanges.

*Bad crank core charge may be applied if we have to replace the crank upon inspection.

*Core deposit depends on engine type



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.


Casting and year blocks subject to availability


Prices may change due to part fluctuation at time of order.


Customer is responsible for reading this listing in its entirety, along with Store Policies Before making any kind of order. ALL SALES ARE FINAL


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

Or message us here or email us at:


Looking to finance through Affirm? Follow this link to get started


SKU: 364215376135191