| Business | Phone |
| Leo Machine & Speed 8817 Leo St, Austin 78745 | (512) 282-5581 |
| Elliott Brooks Cylinder Heads 2311 Thornton Rd P, Austin 78704 | (512) 442-5454 |
| American Head Inc 601 Victor St, Austin 78753 | (512) 837-6298 |
| T's Machine 9104 Capitol Dr, Austin 78753 | (512) 834-8138 |
| Mark G's Auto Machine 7303 Burleson Rd 801, Austin 78744 | (512) 428-9313 |
| Performance Crankshaft-Austin 7303 Burleson Rd 806, Austin 78744 | (512) 385-0300 |
| Performance Plus Machine 9101 Cameron Rd, Austin 78754 | (512) 837-5850 |
| Precision Engine Svc 1029 Reinli St 12, Austin 78723 | (512) 451-1663 |
| Cylinder Head Shop 10208 Ranch Road 620 N A1, Austin 78726 | (512) 331-1110 |
| City Auto Supply 1519 E Cesar Chavez St, Austin 78702 | (512) 476-0665 |