J & J Racing Engines

Whipple-supercharged airboat engine in the shop for a freshen-up. While it was apart, we upgraded it to one of our new engine blocks that we’ve been testing extensively over the past several months.

The results are in, and the data speaks for itself. These new blocks have proven to be a significant improvement over the RHS blocks we previously used, offering better strength, durability, and reliability. We’re excited to get them out there and keep delivering the best possible products to our customers.

4500 dominator Nitrous outlet stinger 3 kit, this plate speaks for itself! We have an extra one in stock $1050

Cleaning up around the shop
-351 Windsor block bored and honed .040 $800
-used Moroso kickout steel pan pn 21050 $450
-brand new stefs aluminum gen 4 bbc with oil pump and fabbed pickup $600
-jomar stud girdle std spacing pn1113 $125
- dart 345 bbc heads fully ported (360) 118cc chamber, new ferrea valves, new Manley 221424p springs and retainers $3000

250 years in America sale of American made parts.
Profiler 215 heads brand new setup for .650 hydraulic roller. 67cc chambers $2000 2 sets available

🇺🇸 Happy 4th of July from J & J Racing Engines!

Today we celebrate the freedom that allows us to do what we love—building horsepower, chasing dreams, and supporting racers across the country.

We’re proud to build American horsepower, one engine at a time. Thank you to all of our customers, racers, military members, veterans, first responders, and everyone who keeps this country moving forward.

We hope everyone has a safe and enjoyable Independence Day with family and friends. Stay safe, enjoy the fireworks, and we’ll see you back at the track soon!

Built with pride. Built for performance. Built in the USA.

First, we want to sincerely thank everyone for the incredible support and trust you’ve placed in J & J Racing Engines. We are extremely grateful for the amount of business we’ve received.

Due to the overwhelming demand for our machining and engine building services, we have reached the point where we must be more selective with the work we accept. Moving forward, we will only be taking on certain projects that fit our current schedule and area of expertise. This allows us to continue delivering the quality, precision, and attention to detail that every customer deserves.

Please note: All jobs must be scheduled in advance. If you arrive at the shop without an appointment, your parts or engine will not be accepted or checked in until a scheduled drop-off time has been arranged. This policy helps us stay organized and ensures every customer’s project receives the attention it deserves.

We appreciate your understanding and cooperation as we continue to grow. Our commitment has always been to give the highest quality not the highest quantity.

Thank you for your continued support.

This small-block Chevy is packing a serious punch!

427 cubic inch

✅ Dart block, fully CNC prepped
✅ Callies crankshaft and connecting rods
✅ Mahle gas-ported pistons
✅ Custom-ground Comp Cams camshaft
✅ BAM Roller Lifters bushed lifters
✅ ARP hardware throughout
✅ Jesel belt drive system
✅ CNC-ported Brodix cylinder heads
✅ T&D shaft rockers and PAC valve springs
✅ Cometic head gaskets
✅ Custom oil pan and valve covers
✅ Melling billet oil pump

Countless hours of machining, blueprinting, and assembly have gone into this build. We’re putting the finishing touches on it now, and it’s almost ready to make some noise on the dyno.