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Wrenchbender Ret · 08-31-2011, 06:34 PM

I'm with Webfoot. The good old trustworthy AC plugs are still the best. For a warmed engine like that I would use the R44s or R44ts depending on weather you have the tappered seat heads or flat seat. That is a little colder then the R45ts. The tappered or flat seat with a gasket must match the heads that you are useing. They changed from the gasket type to the tappered somewhere around 69-71.

08-31-2011, 06:34 PM	#5
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: Spark plugs I'm with Webfoot. The good old trustworthy AC plugs are still the best. For a warmed engine like that I would use the R44s or R44ts depending on weather you have the tappered seat heads or flat seat. That is a little colder then the R45ts. The tappered or flat seat with a gasket must match the heads that you are useing. They changed from the gasket type to the tappered somewhere around 69-71.