Re: O.T. Lincoln Continental?????

Posted by JoeK on July 25, 2005 at 18:40:19 from (207.230.218.137):

In Reply to: O.T. Lincoln Continental????? posted by SJ on July 25, 2005 at 18:04:35:

71 was pre unleaded,however some mfgs were already preparing for the unleaded fuel by lowering compression,changing tuning and installing hardened valves/seats,Unsure of just when Ford began.He needs to check the specs on his particular engine to determine compression ratio.General rule of thumb used to be that a carburated engine below 8.5:1 would handle unleaded fuel though premium fuel/timing adj may be required to minimize pinging.If going"in depth" on his restoration such as rebuilding the engine,hardened valves/seat could be installed or possibly newer cylinder heads as the 460 was around for many years.Also the additives available are not tetraethyl lead but a mix of other chemicals to modify the fuel detonation and slow valve damage(with questionable results) and the"better" ones will add 15-20$ to the cost of a tank of fuel.Wouldn't take many fillups to pay for a valve job to run UL safely.

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• Re: O.T. Lincoln Continental????? Easy 20:42:58 07/25/05 (0)

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