Precision engineering for all your performance and race needs

4.4

Our average customer
rating is 4.4 / 5

What Our Customers Say​

    Very helpful and if you need any advice jon has all the answers good customer service good products and cheap cost and quick delivery

    Tom Sharpe Avatar Tom Sharpe
    14/10/2016

    Big thanks to spec j motorsport l, built me a z20 short block and the craftsmanship that has gone into it is out of this... read more

    Robert Proctor Avatar Robert Proctor
    21/05/2022

    Great service from start to finish and clearly takes pride in what he does. Highly recommended �

    Matt Loane Avatar Matt Loane
    10/04/2017
The machine shop at SpecJ is the core of our business. We pride ourselves on our state-of-the-art facilities and modern techniques.

Contact

01388 434348

[email protected]
Unit 6E Castle Close Industrial Estate, Crook, DL15 8LU

About us

SpecJ Motorsport is a performance engine preparation facility, catering for everything from fast road to race engine building, machining, parts and more.
 
With 15 years of engine building/machining experience whilst working in other performance shops, a lack of performance orientated machine shops in the northeast was discovered. SpecJ was founded in 2021 by Jonny, with a vision to bring a one-stop-shop for all aspects of engine machining and building for the public and other shops alike. In this short space of time we have gained a reputation for working to close tolerances and producing products for the end user to the highest standards.