Camaro 3.1 pistons in a 2000 3100

[berlabs]

I know this will work but what will the compression ratio be? Anybody have some part numbers?

What about some metal head gaskets?

[IsaacHayes]

Hmmm. ran it through the compression calc, and it seems its 11.14:1. Not too bad.

A 3400 with 3.4L iron head pistons in comparision is 12.39:1.


(@*#&$(*

EDIT, 2nd try.

3100 with 3.1 rwd pistons and .040 3.1 headgasket and 3400 28.6cc heads = 11.4:1 with .057 quench which isn't too far off the 3500 stock quench. Cool.

But this raises the question that according to the calc 3400 heads have a larger combustion chamber to keep the compression the same after the increase in bore. So that means if you put 3400 heads on a 3100 it lowers the compression to about 9:1...

Does that mean 2000+ 3100 heads have a different casting # than 3400 heads to keep the compression up???? What gives?

[SappySE107]

http://wot-tech.com/shop/3100/pistons/cat_78.html

I have info there at the top regarding the different pistons.

[IsaacHayes]

So is the calc wrong on the piston dish being the same for the 3100 and 3400 and the heads are the same or????

[XLR8ING]

I ran the 3.1 iron head pistons years ago in my 3.1 MPFI. If I remember correctly, it was 11.3:1 compression. Number H562CP rings a bell