alright my 408 is going together finally and im wondering what i want my compression ratio at??? im going to be spraying a very healthy amount... the pistons are an 8 cc dish, zero deck, 64 CC heads, 4.030 bore, 4" stroke..

this puts me at 11.4:1 with a .040 cometic gasket and at 11.11 : 1 with a .051 gasket..


another thing... the advertised gasket thickness.. is that a squished thickness or before torquing thickness??? i wanna keep a good quench so what would be the better decision for me??

help ASAP would be appreciated... im ordering them up today!

 

I'm thinking that quench is a little high. There's a pretty good thread on it in this section. With 0 deck, I would think a .040 cometic would be a better choice. I don't think you'll have a problem with 11.4 as long as the cam you decide on will complement it.

 

im just wondering if the nitrous is not going to like a little extra compression... the cam is a 240/246 608/613 on a 110+2 LSA

put down WICKED power on the juice..

 

Nitrous and compression go hand in hand. 11.4 sounds perfect to me. Make sure you have a good tune.

 

i will will be dyno tuned for sure..