Unleaded Fuel...

[Peter Laurinaitis <laurin212@yahoo.com>]

Quick question - did Tiger engines ever need to be converted/modified at all to
run reliably on unleaded fuel?

I thought I heard that the heads or valves needed to be hardened or something
like that to run the less-lubricating unleaded gas.

How can I tell if my newly purchased Tigers have had this done, if it is
necessary?  Or should I just always add lead additive to be safe?

Thanks,
Peter

Peter Laurinaitis
peter.laurinaitis.wg02@wharton.upenn.edu