Posted by Garrison on September 02, 1997 at 01:29:55:
In Reply to: Re: Unleaded gas in a flat-head? posted by Jim Ferguson on September 02, 1997 at 00:05:49:
the lead was addedto gas to do 2 things, to cushion the valves and seats, and as a cheap way to raise the octane of the gas. Chrysler used very good valves and seats in these engines and as I have rebuilt quite a number of them I have yet to see any valve seat recession in any of them. I use unleaded in mine, and no one drives theirs harder then I do.