ok. I'm starting a seperate thread on V8 pistons. EVERYONE is welcome to chime in anyway they want to. After all, this is a discussion group and NOT a sunday school class.
Here is a quote from another well known Packard V8 builder.
"1. The International Harvester truck diesels are the closest in the book, offered in a 4.00" and 4.110" bore sizes. These pistons w/pins weight TWICEas much as a Packard piston w/pin. This doubling of the reciprocating weight would make it practically impossible to balance the crankshaft. If it could be balanced by milling out the counterweights and filling them with Mallory metal, the combined reciprocating/rotating weight would then overstress the crankpins and break the crankshaft.
2. The IH piston pins are 1.1101" in diameter. This is .1297" larger than the Packard pin. The machine work cost to bore and hone eight rods to size is considerable. The rod small end could possibly be bored out to that oversize, but strength would be unknown.
3. Diesels don't turn fast, so the inertia of heavy pistons isn't a problem. The weight of the diesel piston would literally pull the Packard rod apart at anything above 3,000 RPMs."
The above quote appears here:
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=1281&start=60This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=22563