| Business | Phone |
| Whatley's Automotive Machine 14620 Hempstead Rd O, Houston 77040 | (713) 460-5010 |
| Innovative Automotive Tech Houston 77074 | (281) 448-8969 |
| Algea's Head & Block Svc 1913 Havner Ln, Houston 77093 | (281) 442-0590 |
| Bear Creek Automotive Machine 16633 Park Row, Houston 77084 | (281) 492-0761 |
| Car-Ade Auto Supply 3302 Broadway St, Houston 77017 | (713) 644-5577 |
| Certified Automotive Machining 521 North Loop E, Houston 77022 | (713) 694-1991 |
| D's Cylinder Head Shop 63 Palmcrest St B, Houston 77085 | (713) 728-3646 |
| Flanakin Crankshaft Specs 6121 Pinemont Dr, Houston 77092 | (713) 683-1023 |
| Gallant Technical Performance 4004 Osage St, Houston 77063 | (713) 266-1320 |
| Mack's Automotive Machine Shop 2121 Tidwell Rd, Houston 77093 | (713) 694-5628 |
| Keeland Automotive Machine 4233 Bellaire Blvd, Houston 77025 | (713) 664-9419 |
| Motor City Engine 10819 Barely Ln, Houston 77070 | (281) 890-8968 |
| Motor Reconditioning Co 1712 Pease St, Houston 77003 | (713) 659-3891 |
| Mtz Machine Shop 6215 Ridgemont St, Houston 77087 | (713) 641-1022 |