[darcane]

I went to a local plastic distributer and bought three 4'x8' sheets of black Corex ($16 each). I used it for the grill block and my partial belly pan and plan on using the rest of it for more streamlining under my truck. I probably won't do a full belly pan, but I'll eventually get the worst spots covered up.

Corex is a corrugated plastic just like Coroplast (it's what political signs are made of if you aren't familiar with it). If you buy it by the sheet, it comes in a huge variety of colors. It's a very popular material here on EM.

As for summertime testing with the grill block... I use an Ultragauge to closely monitor my coolant temp. I will set it up to give a warning if it starts getting too warm to make sure I get enough airflow, even in the warmest days of summer. I plan on removing the lower grill block any time I'm towing (side cutter and zip ties in the glove box just for this reason)


Mike