i might be beating this to death but, my 8.5:1 compression 350 is getting a new set of heads. the current heads are junk. 72cc. vortec was an option, now im leaning towards the sportsman II's because i dont have to change as much and they flow a little better. if i were to get the 64cc sportsman2's, would the head change increase my compression to a little higher number if i use the same gasket thickness's/ whatever? if someone has it, i would like an old style formula to calculate this. just to have. anyways, I just want to know if i would bump up the compression to a little healthier of a number. if noone feels like giving me formulas or numbers. a simple yes or no answer would do just fine. will it increase my compression with these heads? 72cc or 64cc? y/n? im not too good with heads so any help for this would be appreciated.

 

Yes it will go up everything else remaining the same. How much? I am not really sure, but I am sure it will be close to 9:1. Smebody who knows math will probaly be more exact, but it will go up.

Mark

 

woo hoo, thank you!!!! it will go up..... but for the tricky part, how much?

 

If your current heads are 72ccs changing to 64 will give you about 9.4:1

 

thanks a bunch guys, i would be lost without all of your help.

 

i found a cool site that has tons of math formulas and does the calculations for you. Check it out

www.smokemup.com