| Business | Phone |
| Autocraft Industries 9901 W Reno Ave, Oklahoma City 73127 | (405) 577-9901 |
| Blue Chip Motor & Machine 1401 S May Ave, Oklahoma City 73108 | (405) 681-3600 |
| Chappell Engine 3520 Nw 64th St, Oklahoma City 73116 | (405) 631-3920 |
| Fliteline Engine Supply Oklahoma City 73129 | (405) 619-0066 |
| J T's Custom Engine 3108 S Robinson Ave, Oklahoma City 73109 | (405) 685-2799 |
| Joyco Engines 2640 W Reno Ave, Oklahoma City 73107 | (405) 235-6926 |