JGM Performance Engineering

These guys do amazing work.Talked with a very knowledgeable gentleman named Ryan.Told Ryan what motor I have to work with and what car it was going in.He set me up and built an amazing 408 sbc.I love torque and they delivered with impressive numbers.Very happy very satisfied.Dont waste your money on picking a random shop off google.Bring your engine here and you can sleep like a baby at night.
Mar 25th, 2024

Super good and qualified people that will help you through any engine machine shop needs. Ryan is just the best...despite that I was just having work done on a simple old Jeep flat head engine, he treated me like one of his best race motor customers. Best experience possible.
Jan 15th, 2024

Jan 7th, 2024

We set a date for Friday, I took the day off from work and had a 2 hr drive to give this guy my business. When I show up it's a ghost town, I kept calling and waited outside for another 2 hrs thinking they're maybe on lunch and nothing, that guy left me hanging. They never answer the phone and they operate out of a U-Haul rental shed. FTP for wasting my time. Unprofessional all the way.
Aug 10th, 2023

I have a 1969 Ford Ranchero with a 250 cu. in. I-6. It is a car that has been in the family since my grandfather bought it new. My dad drove it for a few years after my grandfather couldnt any more and then I acquired it. Around 134K the engine started getting tired consuming a bit of oil and hard to start due to fouled plugs and low compression in a couple of cylinders. I also couldnt keep radiators in it because the head gasket was probably leaking. There is no reputable machine shop/engine builder in Ventura to do the engine block and head together that I could find. I ran in to a friend of my dads and asked him who he used and he referred me to Ryan over at JGM Performance in Valencia. I called Ryan and we talked about my engine and the rebuild. He was very honest and up front about every aspect of the process. I had to wait a couple of months until he could schedule my engine in. Ryan called me out there a couple of times during the build to view the progress and see their opperation. Ryan and his employees do very professional and detailed work. I got the completed engine back after a couple of months. It turned out beautiful, like a piece of art. I got the engine and transmission back in the car and running maybe 5 days after getting it back. It fired up and it ran great after a couple of adjustments. I am very happy with the overall experience.
Jan 23rd, 2024