Mine are milled .040 which is supposed to be 11.0-1 ratio. Haven't installed them yet so I am not sure if I will have an allignment issue.

 

some SDPC heads are milled .055; these heads require you to shave the manifold alignment pins and to consider different lenght push rods...

...not sure i ever got a straight answer on the expected compresssion ratio of this settup....some with this setup say it runs fine on pump gas...

 

Steve...I think Cammin' went .060 on his to 11:3:1 w/out issues, but was running less lift/dur. Remember...yours are already .030.....
Talk to Paul @ Thunder to see if he thinks there will be any P/V issues before you cut any more.

Mike

 

im running 0.05 off mine on 93 gas <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

I talk to Paul @ TR.

With the 230/224 Only .015 can be taken off a 5.7 head without having PV issues. <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> There goes that idea <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Bad02WS6:
<strong> I talk to Paul @ TR.

With the 230/224 Only .015 can be taken off a 5.7 head without having PV issues. <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> There goes that idea <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">maybe with stock pushrods. i have a 224/224 fwiw. better be safe than sorry though.

 

How much can be milled off the deck of a 5.7 head, without having alignment problems with the intake? I'm trying for a 11.0-1 CR.

Is anyone running 11.3-1 CR on pump gas, 92?
<img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Thanks!