| Business | Phone |
| Accurate Engine & Machine 5053 W Diversey Ave, Chicago 60639 | (773) 237-4942 |
| Automotive Engine Machine 5147 W 47th St, Chicago 60638 | (773) 581-5522 |
| Ellison Auto Parts Co 7700 S Stony Island Ave, Chicago 60649 | (773) 721-7373 |
| Cylinder Head Express Inc 2443 N Pulaski Rd, Chicago 60639 | (773) 342-4265 |