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Is there anywhere I can find the compression heights for factory 440s for all years? I am building a budget 1978 440 std. bore for my power wagon and have a few 440s laying around also. So I am curious if it is worthwhile for me to use some factory pistons from a different 440. I know the 78' pistons are WAY down there in the hole.
Or list how far down in the hole they are! I have a 67' 440 and a 72 440. Im guessing the 72 and 78 are the same. The 67 I am guessing are about .085 in the hole, being it is 10to1 with 75cc heads.

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Without looking anything up and going by memory, it is something like this

67 hp - CH 2.00", 0.080" to 0.090" in the hole

68-69 hp - CH 2.03", 0.050" to .060" in the hole

6 pac - CH 2.06", 0.020" to 0.030" in the hole.

I have measurements of this somewhere, if you want it more exact.

I know that a 2.03 replacement piston has not been around for a while, unless someone has started making them in the last few years.

The actual compression difference between the 2.03 and six pack 2.06 piston is not that much as the six pack piston has about 6cc of valve relief in it....again, from memory.

Building a pump gas 440 with quench using factory pistons and heads is difficult. No matter how you mix and match, either you have a decent CR, and the piston is 0.060 in the hole (closed chamber head), or you have a good quench, and the CR is 11:1.

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Nice info.