Y7 block, Y8 head, OEM Y8 HG

#1 = 175
#2 = 170
#3 = 180
#4 = 175

is that good enough for turbo?

Also what is the compression ratio going to be? from what ive been reading it says 10.23 is that correct?

 

?

 

Well it should be 215ish if the 10.2 compression is right, however, they are very close together which indicates you are alright.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cambopheonix56 &raquo;</TD></TR><TR><TD CLASS="quote">Well it should be 215ish if the 10.2 compression is right, however, they are very close together which indicates you are alright.</TD></TR></TABLE>

any idea what the ratio could be then and would it be good to trubo it

 

They could be a little higher, but they are all very even. You'll be fine with a turbo on it.

 

guys im gonna bump this,

i want to do this ive had cheap performance increase with dropping a built vtec sohc head on my d16z2 (sohc non vtec) however im a little worried the compressions gonna be a bit high i have 12:1 ycp pistons has anyone tried this and does it make my compression ratio to high?

 

Compression ratio is 12:1 now or will be after the head swap?

 

nah currently my non vtec sohc d16 is 12:1 apparently

 

In that case, yes you'll have issues.