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North Florida's Oldest Hi-Performance Engine Builders!



We are North Florida oldest Automotive & Hi performance engine and machine shop!
We offer full Engine & machine services, Hi-Performance & Racing engine services, Dyno Services.

High Performance Machine Shop - Full Service Engine Machine Shop - Racing Engines - Engine Rebuilding - Blueprint Engines - Crate Engines - Engine Balancing - Cylinder Head Repair - Resurfacing

Standard Engine and Machine Services:


At GJA we offer all the normal machine services you would expect a state of the art machine shop to offer. We can refresh your stock engine or perform any standard machine service you may need, from a simple valve job to full block prep for a rebuild.

We provide a full range of engine machine shop related services. We pride ourselves on precision machine work, customer service and doing the work correctly the first time. We can handle your next engine rebuild or repair work in a timely fashion.

As a machine and service shop, we can rebuild your existing engine back to the original specifications or update it with the latest in parts and performance items. All of our machined parts are machined in house and are to specifications with the particular make and model of your car engine.

We are experienced in machining racing engine parts, and other high performance automotive necessities as well. We are the best place to go for new and re-machined engine parts. We have the capabilities, with up-to-date equipment and machines, as well as the knowledge and experience to do your work quickly and affordably.

Hi Performance Engine and Machine Services:

We work on high performance, racing, blueprint, crate and street engines. We currently build and manage engine work for many drag, oval track, road course and boat racing teams. We understand that Hi-Performance enthusiasts and racers alike all have different needs and goals, we have the experience to supply exactly what you need in performance work.

From your daily driver, to your street machine, race car or motorcycle -we've got you covered!


Engine Machine Shop Services:

Align and Bore Block
Assemble Short Block
Assemble Short Block - with heads & intake
Balance Engine
Bore Block with torque plate
Block Resurfacing
Camshaft balancing, grinding and polishing
Clean Motor
Clean and Mic Pistons
Chamfer Oil Holds
Check and Mic Engine Block
Check Bore Line
Check Rods
Check Rod Side Clearance
Cut Deck of Block
Cut out Top Grooves in Cylinder Walls
Cut Ring Gap
Degree Cam
Engine Assembly
Engine Cleaning and Degreasing
Engine Kits
Engine Rebuild
Fit Piston Pin Bushing on Rods
Hone Cylinder Walls
Install Cam Bearings
Install Cylinder Sleeve
Install Freeze plugs
Install Rod Bolts
Line Bore Block
Machine Fly Wheel
Magnaflux Block (Crack Detection)
Magnaflux Rods
Magnaflux Shaft
Polish Rods
Polish & Mic Crankshaft
Press Rod on Piston
Recondition Rods
Shock Ping Rods
Turn Crankshaft
*Additional engine services available


Cylinder Head Machine Shop Services:

Angle Cut Heads
Clean Cylinder Heads
CC and Cut Cylinder Heads
CC Heads
Cut Spring Pads
Cut for Screw in Studs
Install Valve Guides
Install Bronze Guide Liners
Install Valve Seats
Knurlize Guides
Magnaflux Heads
Match Intake Ports
Match Exhaust Ports
Port and Polish Heads
Pressure Check
Recondition Heads
Setup Valve Springs
Surface Heads
Three - Angle Cut Valve Job
Undercut Valve Seats
*Additional cylinder head services available


We are known for our Hi-Performance Engine work. You'll find our engines in everything from Street Machines, Race Cars to the Tow Rig hauling them down the road!


We also do import machine work, including installing turbo's and other specialized Hi-Performance modifications!


No matter how wild you want to go or how much power you want to make, we can supply & get exactly what you want!

Motorcycle Machine work!



From boring to custom porting on American or Imports bikes, we can handle all your machining needs as well!

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


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