Chevrolet 409 Portflow Series Valves
stainless steel swirl polished performance valves Big Block Chevy
69 E. 580 N.
Santaquin, Utah 84655
1-801-754-5338 or Toll free 1-866-700-5877

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Portflow Series Valves

These valves are ideal for both competition and street applications. They are similar in material and design to competition valves, but manufactured in large production runs for all of the most popular applications. Because of the fully automated (robotic) production, SEV-series valves are priced lower than racing models, yet feature the same premium quality stainless steel forgings, Chrome stems, stellite tips, and swirl-polishing. If you do not see a valve you need in the Competition or Silverline Series, use the Portflow, as they are suitable for these applications.
These part numbers begin with SEV.

Call toll free to order at 1-866-700-5877 or e-mail or use the Order Form for questions and to check stock.

BBC 409 Intake and Exhaust Valves
Description Length Part # List Price Your Cost $
2.190 (409 Intake Valve 5.110 SEV-2387-C 25.32 14.47
2.090 (409 Intake Valve 5.110 SEV-2387-ES 25.32 14.47
1.720 (409 Exhaust Valve 5.110 SEV-2388-C 25.32 14.47
1.660 (409 Exhaust Valve 5.110 SEV-2388-CS 25.32 14.47
1.940 348/409 Intake 5.110 SEV-2387-194 25.32 14.47