z6 head on y8 block
#1
Senior Member
Thread Starter
Join Date: Apr 2005
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Posts: 624

Hey guys, I forgot to ask, the motor that I just built consists of a z6 vtec head on a y8 block, is this going to change compression compared to just a full y8 motor??? Also what kind of sensor problems will this cause (if any). I am going to be running a p28 ecu. Thanks in advance.
#3
Senior Member
Join Date: Dec 2004
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Posts: 3,095

Stock Y8 is 9.6:1. Stock Y8 with a Z6 head will drop to about 9.3:1. Swap out for Z6 pistons and you're down to about 8.65:1.
#6
Join Date: Jul 2005
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Posts: 23

hey im doing a SIMILAR swap im putting a y8 head on a y5 block will my compression change and what would my compression be?...im new to this!