| Business | Phone |
| Automotive Block & Head Welder 4066 Lenox Ave, Jacksonville 32254 | (904) 384-1510 |
| Avid Engine & Cylinder Head 2363 Swan St, Jacksonville 32204 | (904) 353-4374 |
| Big K Auto 481 Ryan Ave, Jacksonville 32254 | (904) 389-0424 |
| Doug's Automotive Machine Shop 2642 Rosselle St, Jacksonville 32204 | (904) 389-6789 |
| Precision Crankshaft Svc Inc 466 Lime St, Jacksonville 32204 | (904) 354-1359 |
| Gary Johns Automotive Machine 2392 W Beaver St, Jacksonville 32209 | (904) 388-8808 |
| Horsepower By Hedrick 10286 103rd St, Jacksonville 32210 | (904) 771-2739 |
| J & J Crankshaft & Engine Svc 2650 Rosselle St # 5, Jacksonville 32204 | (904) 387-4240 |
| J & W Engine Svc 7262 Lem Turner Rd, Jacksonville 32208 | (904) 765-3933 |