Return Home All our Service Options Product and Parts available from us Shop equipment and staff area Our Client Gallery Area! Learn about us, long story! Contact and Mapping for quick contact.
North Florida oldest Automotive & Hi performance engine and machine shop!

Welcome to our about area of the site.

Here you can find out about our shop, experience and why we are the right choice for all your machine shop and service needs. With over 40 years in the engine building business, we've pretty much seen and built it all!

Gary Johns performance engines have won Championships in every NHRA class and division raced during his 40+ years in building engines. In addition, his circle track racing engines have dominated with wins and championships at every level in all types of race tracks, be it pavement or dirt around the US for many years.

Visit Us!

Gary Johns Automotive
540411 Us Highway 1
Callahan, FL 32011

Map & Driving Directions!

For a quick map to our location , please click the small map image below.

(Map Courtesy of

For expanded mapping options, please use this web Link to Map (link opens in new browser window), to visit Google Maps where you can get more detailed information on our location.

The Staff at GJA!:

The staff at the shop is headed up by Chad Johns.

Chad has developed his own reputation for his ability to build solid performance in stock engines as well as following in his fathers footsteps in building big horsepower in the most advanced type of engines used in performance, racing and street machines today.

Chad has been pretty much the main man in the last few years and is now leading the GJA shop into the future with his experience and ability to use the latest greatest techniques in machine servicing to fill any customer needs.

Knowledgeable on Dyno tuning, Nitrous and Supercharging engines, he also has a solid understanding of how to make EFI fuel injected and computer controlled engines perform to the maximum of performance levels.

The other staff members in the shop are also very knowledgeable and capable of doing about any service needed by customers and clients. No matter how advanced or the latest technique being used is, the staff at GJA has the resources and knowledge to perform them for the GJA customers.

A Special note from the Webmaster:
On our visit to the GJA shop to drop off our engine block for machining, we were lucky enough to get to meet Gary Johns the man himself in person!

In the machine service business for over 40 years, Mr. Johns is responsible for building countless stock, performance, hot rod and competition engines over the many years that dominated in whatever category they were used in.

Having some health issues in recent months, Mr. Johns hasn't been able to spend as much time as he normally likes to working with customers and vendors in the shop.

Let me tell you -the man' is sharp as a tack! Whether it was about a piece of equipment in the shop or an old intake used for decoration hanging around the ceiling area of the shop, he could rattle off a full explanation of what it did, what it came off of -or even how it came to be in his shop!

Famous for the dependability and longevity of his engines while making big horsepower, and to be able to meet Mr. Johns and get to spend a few minutes discussing engines, racing and the GJA history -was something this webmaster will never forget. Impressive shop, impressive man...

Site Supporters:

Wounded Warrior Supporter
Privacy Statement:

E-mail us at

Contact us today to get your work started! Call us at 904-628-0579

Site Designed by /