| Cylinder Heads | |||
| # | Company Name | City | State |
| 1 | Air Flow Research | Pacioma | CA |
| 2 | Alan Johnson Cylinder Heads | Santa Maria | CA |
| 3 | All Pro Aluminum Cylinder Heads | Johnstown | OH |
| 4 | Brodix | Mena | AR |
| 5 | Clifford Performance | Corona | CA |
| 6 | CNC Cylinder Heads, Inc. | Pinellas Park | FL |
| 7 | Cylinder Head Engineering | DeSoto | KS |
| 8 | Dart Machinery Ltd. | Troy | MI |
| 9 | Dowlings Porting Service | Carlisle | PA |
| 10 | E T Performance | Walled Lake | MI |
| 11 | Futur Cylinder, Inc. | Laurenceville | GA |
| 12 | Hall-Toledo, Inc. | Maumee | OH |
| 13 | Headgames | Hamilton | NJ |
| 14 | High Velocity Heads | Knoxville | TN |
| 15 | AllPontiac.com | Richmond | Virginia |
| 16 | Holley Performance Products | Bowling Green | Ky |
