Easily one of the best machine shop experiences Ive ever had. Tip notch service, advice, and the end-result exceeded my expectations. Highly recommended if you need the best and dont mind paying what that expertise is worth.

Gary very nice guy keep up good work

Great place. Motors are 2nd to none in my opinion! Customer service is great as well.

The best services in DFW area

Accurate, very n ice machine work.

Great work, very friendly and knowledgeable.

In order to wring a bit more performance out of my 1993 300zx, I decided to port and upgrade my heads. The stock heads are already well built so I knew I had to find a high quality machine shop. I visited two other local shops at first but neither would inspect the heads or quote me a solid price for the work when I visited. Both also lacked experience in head porting. Another shop wouldnt even bother taking my calls or returning my emails.Speed Specialties really stepped up to take on the job. They even took the time to compare two similar castings right when I stopped by. Their shop is quite clean and materials are kept organized.After a couple weeks of constant porting, I was treated with some of the best looking ports Ive ever seen. Then, the guys completed the 4+ way valve job with a precision valve cutting machine. They also installed some Ferrea valves, JWT valve springs, JWT mild cams, viton stem seals, and new lifters. Through the process, both Garys kept me in the loop. When finished with the work, they walked me through the entire process as well as how/where material was removed.After installing my heads, both aligned perfectly to the lower intake. A leak-down test revealed no leakage through the valves. The finished heads are more than quality products, theyre precise, high performance works of art. I know where Im taking my next engine projects. Great work!

Nice guys stayed on the phone and talk to you about any questions.

Great shop.

Great guys and excellent service!

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