Show your slant 6 a body!

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Hmmm. I was working off a defective memory on the 8.5 DC. I will double check this.
If you can let me know head gasket compressed thickness and your camshaft intake valve closing event I can come close.
 
If you can let me know head gasket compressed thickness and your camshaft intake valve closing event I can come close.
I have two choices for a head gasket - .039 or so for a standard FelPro, and .020 steel shim. Intake closes at 37 ABDC.
 
I have two choices for a head gasket - .039 or so for a standard FelPro, and .020 steel shim. Intake closes at 37 ABDC.
Ok. So lets use the .020. Glad you got one of those. And that 37 is at .050". brb
 
Ok I'm GUESSING at the chamber volume from your .060 cut is about 50cc, so that's what I used. Stock is like 58. Using all that and the .020 head gasket I got 8.77 static and 7.65 dynamic.
 
You should cc that head and we'll know a little closer. Also measure how far the piston is in the hole at tdc. I use .180 because that's usually where they are. If we hammer those measurements out, we can get a lot closer.
 

I can get some more measurements in a few days. I did check the head and pistons when this was assembled but that was a while ago. Memory says...........I have no clue, go re-measure.
 
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