Hey guys I just bought a set of wiseco pistons and easgle rods, but Im not too sure on wich part number to ask for. Im guessing this one? K542M815. It says it gives a 9.3:1 - 9.8:1 Cr. That should be where Im looking at for boost right? But that says Its for the b18a/b block and head. Im using a b16 head so wouldn't the Cr be a bit higher? Thanks in advance for any input!

 

http://cgi.ebay.com/ebaymotors/Wisec...#ht_4997wt_939

The setup I'm going with It shows you part numbers and their Compression Ratios.

 

are you on a stock bore? the part number you gave is for a bore of 81.5, if you are on a stock bore then do k542m81

 

I'm getting the block bored to 81.5. but will this be a safe Cr to be at? I don't want to get into the 8's because I think that a little too low.

How much compression does a b16 head add? Also if I order K542M815 will they have deep enough valve reliefs?

 

You will be fine with that c/r. Are you running stock size valves?