leaded or unleaded fuel

oldkimmer said
So then more than likely a 8.5 to 1 340 is only 7.5 as the piston is .100 thou shorter. I hate to think what a lo po 440 is with the piston down in the hole .150 thou. Kim
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oldkimmer said
So then more than likely a 8.5 to 1 340 is only 7.5 as the piston is .100 thou shorter. I hate to think what a lo po 440 is with the piston down in the hole .150 thou. Kim
Click to expand...
The .150 plus in the hole 440s are somewhere in the low seven range. 7.2 to 7.4 to one.
I've got a factory aluminum head chrysler eight, with 6 to 1.