Nervous about my compression

[RITTER]

So I have input my measurements into many online compression calculators and it seems to be much higher than we anticipated. I would like some insight and maybe some more numbers if y'all have good sources for this formula.

bore 4.030"
compressed head gasket thickness .039"
head gasket cylinder diameter 4.125"
piston to deck height .015"
4-valve relief flattop -5cc
piston compression height 1.560"
*041 GM heads originally 64cc After my head guy surfaced them, he found that the intake did not line up. So, these things have been shaved at some point in the past. My intake had to have some material removed for everything to line up correctly. I didn't actually fluid measure the chambers, so I don't know the exact number, but I just estimated 62cc :idea:

Let me know what you think :|

 

[username]

Sounds like you got a similar motor to what I just built I know I ran some calculators and got a lot higher than I expected dynamic compression than what I was expecting.
http://www.gbodyforum.com/viewtopic.php?f=13&t=28172 I know I was trying to discern between static and dynamic compressions and one of the things I noticed that I did and you may be doing the same with your math is I was not taking into account deck clearance.I was figuring just the volume of the heads when in actuality my block was never zero decked. I include my previous post because there are some good links in it.

 

[RITTER]

oh sorry, I forgot to include that

piston to deck height .015"

*edited my original post*