Find parts for your Subaru
Building engines since 1976.
GCH Long Block Racing began rebuilding hot rod engines in the 1970s. Now we’re on the cutting edge of Subaru’s ever-improving, ever-evolving performance technology.
We are a second and third generation machine shop with a combined total of 65 years of experience. We’re proud to offer top-quality engineering technology. Every job that comes through our shop is custom-built to order.
Fully in-house, we have control over what leaves our shop. Each block and head is tested through our rigorous inspection from start to finish by our team of state-certified machinists. We measure our blocks inside and out to ensure the best tolerance levels and specs.
Every job is custom-built
Browse our customer reviews and shop our products to get to know us yourself, and reach out today with any questions or comments!
WHAT PEOPLE ARE SAYING
The short block I ordered was really well made and delivered pretty quickly...Their blocks are extremely well made and I will definitely be a return customer.
I bought a B25 Sti bare right cylinder head with the option to not have port and polish, and it’s a very high quality part and meets my standards. It’s going to work perfectly for my top end build and I’m glad I bought from GCH. They have high quality parts and I recommend everyone to check out their website.
The work is phenomenal and the owners are easy to work with!