JA Competition

JA Competition Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from JA Competition, Automotive repair centre, 723 East 52 Byp, Pilot Mountain, NC.
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When you want to be sure the sleeves are fully seated!
06/16/2026

When you want to be sure the sleeves are fully seated!

Spent the morning down at 3V Performance with a customers engine on the dyno for a little break-in session. 😎
06/12/2026

Spent the morning down at 3V Performance with a customers engine on the dyno for a little break-in session. 😎

Nice little 383 LT1 build coming together for a sub 10k mile 96 Z28.Lots of old school parts are going into this build f...
06/11/2026

Nice little 383 LT1 build coming together for a sub 10k mile 96 Z28.

Lots of old school parts are going into this build from the AS&M 58mm throttle body, Racetronix / Delphi injectors, a Tick Performance 'Hold My Beer' camshaft, Lloyd Elliott LE2 heads, and peep those Crower rockers.... Those rockers have a .050" backset to improve the geometry compared to typical SBC shelf stuff.

Fresh of the truck... Two sets of Black Labels for customer builds decked out with Ti/inconel valves, one dry decked, an...
06/08/2026

Fresh of the truck... Two sets of Black Labels for customer builds decked out with Ti/inconel valves, one dry decked, and another set of 305 solid roller LS7's with Ti/inconel now in-stock with Jesels to match!

Koehler Motorsports dirt modified engine in the house! We are super excited about this new opportunity, and look forwar...
06/07/2026

Koehler Motorsports dirt modified engine in the house! We are super excited about this new opportunity, and look forward to building many more!

Maybe we should retire Grubbworm and go dirt oval racing! 👀

Customer supplied valve machined somewhere else vs a quick touch up.Check out that chatter!
06/05/2026

Customer supplied valve machined somewhere else vs a quick touch up.

Check out that chatter!

BIG big block Ford in the hone ready for the treatment. 👀
06/05/2026

BIG big block Ford in the hone ready for the treatment. 👀

Just waiting on some hardware to hold the valve covers on and then this thing will go on the test stand!
05/30/2026

Just waiting on some hardware to hold the valve covers on and then this thing will go on the test stand!

Another engine finished up this week for a roadrace car. We originally did this engine a couple years ago. It took the...
05/30/2026

Another engine finished up this week for a roadrace car. We originally did this engine a couple years ago. It took the customer a while to complete the build/upgrades on the car done at the same time, then shortly after a successful dyno session, the engine overheated badly on the track.

Just like the bottom end, the LS7 heads needed considerable work to repair the damage so they were sent to the cylinder head company that did the original work to them. New Ti valves held up progress for a good long while, and .012" was cut to get the surfaces nice and flat again.

Once the heads were back in our hands, we proceded to install them just to have one fastener seemingly unable to reach the 80 lb/ft torque spec. Assuming the threads in the aluminum block were about to fail, I installed a Time Cert insert only to still have an issue torqing that fastener.

With further examination of the cylinder head itself at this point, we noticed that the bolt hole was stretched, or becoming an oval! The head casting was distorted from the extreme heat, and the face of the hole where the nut/washer meets the head was not sqaure to the deck. Basically, the nut/washer was trying to slip off the head, flexing the stud and stretching the hole in the process! We faced all the bolt holes.... problem solved.

Show your paw daddy! Double rollers and Double Humps?This is a sweet 383 for a customers 69 Camaro. Roller cam convers...
05/29/2026

Show your paw daddy! Double rollers and Double Humps?

This is a sweet 383 for a customers 69 Camaro. Roller cam conversion with Trick Flow 'double hump' heads.

Lots of time spent with the paint can, and lots of little time consuming details on these old engines, but man they look so good!

DSS 4032 pistons, and Eagle forged rods and crank with a rowdy JAC spec, Comp ground camshaft.

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723 East 52 Byp
Pilot Mountain, NC
27041

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