Where Can One Find Published Factory 360 Piston Compression Height?

RustyRatRod said

The problem is, as you eluded to, that there is more than one measurement. I think there is even more than that. Add in the Magnum engines and we have even more measurements to throw in, since the Magnums have a shorter deck height. The Larry Shepard info JBurch posted is probably the best guess so far.

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There are also truck compression pistons (lower compression and CH numbers) to add to the confusion, in addition to aftermarket pistons often being a bit different from stock factory numbers. Look up 318 LA pistons in the Silvolite catalog.... you will find 2-3 different CH's.

One thing to NOT do: Don't ever take data from a distributor's web page..... the odds of being incorrect are the highest there.