Ventilation on engine side covers? What have people used?

[VansRV]

I want to add some louvers, or grille, or some sort of ventilation to help disburse engine head on both engine side covers. In my mind I envision a grille about 10" high and 24" long. All suggestions appreciated!

[peterh226]

Check out my build thread for how I handled these.
https://thefactoryfiveforum.com/showthread.php?31910-SS383-Build-33-Hot-Rod-1134&p=417572&viewfull=1#post417572

226385 Preview in process

226386 After paint and polish

226387