Re: Correct plugs for 041 heads with hei
A tapered seat plug would likely be a R44T or R44TS.... the "T" is for tapered seat. Not trying to be a Beavis, here, just help.
They no longer make any gasket R44 plugs, it's either R43 or R45. The R43 is a cooler plug than a R45, and does NOT have the extended tip.
My engine builder never recommended extended tip plugs. I still trust his thinking, many will disagree...
If the engine is in good condition and runs well, I'd use R43 plugs. If it's a little lacking power wise, not in best condition, I'd go R45.
THe extended version of these 2 plugs has an "S" at end, R43S, R45S, if that's what you want...
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