hey guys if i have 8.5:1 compression with 72cc heads then wut woudl i have if i used 64cc heads? thanks

 

im running 63cc heads and i was told 10:1 to 11.1 depending on other factors 94octane

 

9.16:1

 

http://www.smokemup.com/auto_math/compression_ratio.php

 

camarodriver check your PMs, thanks

 

I have no idea how to use that...could someone tell me if lo5 heads are 58cc or 64cc?

I have 9.6:1 right now with lo5 heads...are they 64cc? if so can you see how much compression id have with 58cc heads.

 

Engine Calculations.xls .

It works better with Quattro Pro, but will work with MS Excel.

 

site for a really good c.r. calculator...

www.kb-silvolite.com

click on cr calculator and plug in your figures.....HOWEVER..

You will only be close if you guess at the numbers that you input.

To find out whats the deal inside that motor you have to cc the heads, measure the deck, etc etc etc.

 

i think the lo5's are 64 cc heads

 

If they're #14102191 or #14102193 then they're 76cc chambers.

Those are the casting #'s they used on the LO5 engines so more than likely that's what you have.

www.mortec.com/castnum.htm

 

thanks vader that excell thing was just wat i was looking for lol