| Business | Phone |
| George's Buggy Shop 5735 Babcock Rd, San Antonio 78240 | (210) 690-8818 |
| Groff Automotive & Diesel Mach 1433 Bandera Rd, San Antonio 78228 | (210) 433-0627 |
| Industrial Engine Svc 5858 Bicentennial St, San Antonio 78219 | (210) 661-6703 |
| J's Automotive Machine Shop 1904 Pleasanton Rd, San Antonio 78221 | (210) 924-5700 |
| Kotzur Racing Heads 5436 Schertz Rd, San Antonio 78233 | (210) 590-1540 |
| Mike's Automotive Machine 1613 Castroville Rd, San Antonio 78237 | (210) 434-5562 |
| Miller's Automotive Machine 6312 Grissom Rd, San Antonio 78238 | (210) 684-7722 |
| Montoya 4 Auto Spply & Machine 3015 Culebra Rd, San Antonio 78228 | (210) 434-6336 |
| Performance Machine Shop 8005 Nelson Rd, San Antonio 78252 | (210) 623-3737 |
| Pat's Vw Machine Shop 5250 Prue Rd, San Antonio 78240 | (210) 690-1263 |
| Q's Auto Parts & Machine Shop 4318 W Commerce St, San Antonio 78237 | (210) 432-0931 |
| R & L Bear Engine 1716 S Zarzamora St, San Antonio 78207 | (210) 226-3491 |
| Richards Machine Shop 755 N General Mcmullen Dr, San Antonio 78228 | (210) 434-6878 |
| Bi-Rite Ap Engine Exchange 3303 S Presa St, San Antonio 78210 | (210) 532-7627 |