3 weeks ago
Absolutely awesome staff and unbeatable prices. They were able to get me the parts I needed for my rebuild during the holiday season and get it out in a very timely manner. Definitely a lifelong customer!
2 weeks ago
Very fast working and communicative! First time ever outsourcing an engine build all the way across the country but the work is phenomenal and the owners are easy to work with!
- Adam M
3 months ago
Unbearable prices and solid customer service. They made a minor mistake with my order and corrected it very quickly and efficiently with no problem! Gabe was awesome to work with. Would definitely recommend to anyone building their car up.
- Kaelin P

Custom Subaru Machine Shop

With more than 45 years of experience here at GCH we specialize in Subaru, we are not a facility, we are a 2nd & 3rd Generation Custom Machine Shop. We machine and build custom builds or stage up packages or just short blocks or just heads. We cater to each of our customers needs. High performance machining available in house. 

Contact Us


Call now
  • (909) 212-3843


Get directions
152 San Lorenzo Street
Pomona, CA 91766
United States

Business Hours

Mon:9:00 AM – 6:00 PM
Tue:9:00 AM – 6:00 PM
Wed:9:00 AM – 6:00 PM
Thu:9:00 AM – 6:00 PM
Fri:9:00 AM – 6:00 PM
Sat:9:00 AM – 6:00 PM
Get quote
Message sent. We'll get back to you soon.