Reply to "What's a good used Fontana block worth?"

kennMember

I'll have to find the serial number. I suspect that an engine builder had the aluminum caps made.

When I talked to the guys at Fontana's shop about the aluminum main caps they had a mixed reaction. One said the bearing clearances would have to be a bit tighter to compensate for the greater expansion of aluminum, another thought they were better because the block and cap would expand about the same amount so the bearing seat would stay round. Both thought using a dry sump system would address any potential issues.

6/15/109:24 AM

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