| Business | Phone |
| A-1 Foreign Car Sales & Svc 2924 W Kearney St, Springfield 65803 | (417) 831-0332 |
| Bill's Automotive Machine Shop 3395 W Farm Road 76, Springfield 65803 | (417) 833-2572 |
| D & D Cylinder Head Exchange 517 W Chase St, Springfield 65803 | (417) 864-5701 |
| Monarch Machine Co 225 S Main Ave, Springfield 65806 | (417) 862-0581 |
| Motor Machine Shop 706 E Commercial St, Springfield 65803 | (417) 865-0653 |