| Business | Phone |
| Chp Cam & Crank Shaft Grndng 2200 Business Way, Riverside 92501 | (951) 682-6077 |
| J & D's Automotive 10180 Hole Ave # 500, Riverside 92503 | (951) 781-9906 |
| D & R Machine 10051 Limonite Ave, Riverside 92509 | (951) 685-7786 |
| Dougan's Engine Rebuilding 9072 Limonite Ave, Riverside 92509 | (951) 681-1961 |
| George's Automotive Engine 6227 Chadbourne Ave, Riverside 92505 | (951) 354-9061 |
| Woodcrest Vehicle Center 880 Columbia Ave, Riverside 92507 | (951) 222-2270 |