I just want to make sure my thinking is correct.
I’m trying to keep a nice quench and DCR at the same time.
Basically here’s the idea.

.030 over
9.015 deck
.029 gasket
4CC piston (1.425 compression height)
3.75 stroke
5.7” rod
Intake close of 73 (not the advertised but the actual)

This give me a Static CR of 11.96,(not really a concern) a DCR of 8.94 (am I pushing it?) and a quench of .044 (Seems like where I should be.)

Now if I change the rod length to 6” that drops my DCR to 8.88 but it also makes me run a piston with a 1.125 Compression height.

This will eventually be getting a max of 200 shot so Compression Height is a concern of mine. Pistons are rated to 250 by the way.
With that, said is my DCR at 8.94 close enough that I should reconsider this setup and go a different route.

Thanks

 

Ok...so I found a Probe piston that will help me out a bit.

12cc relief so that moves the CR to 10.86 and the DCR to 8.10
Problem is that I will then be running a compression height of 1.125 due to the pistons design for a 6" rod. With a planned 200 shot I would think that 1.125 is potentially the very minimum compression height. Any thoughts?

BTW, the reason the block spec read as they do is because this is a block that was already done that I have found a good price on.

Edit: I don't know what I was thinking earlier....removed to preserve some
sense of mathematic intelligence.

Any thoughts or ideas....?
I'm open to suggestions.