[fortyfords]

Henry, I found your information interesting but I use screens in every car I own, Why the screen works for me is because I put the screen next to and on the back side of the grille. In Mo. one has to do something for the bugs, especially the grasshoppers, they are messy. Installing screens this way increases my volume of air coming so the radiator doesn't see a flow restriction in my opinion. My radiators all look like new and I don't have any heating problems. This theory doesn't work as well on a 32 Ford grille shell but it doesn't seem to hurt me any either except in stop and go traffic on the 32's. The one 32 even has a chopped smaller radiator and the engine temp usually runs 185 all the time. Sorry if I'm argumentative but results speak pretty loudly too. Have fun with the boating.