is there a difference in the heads of d16z6 and d16y8? does anyone have pictures of the two to compare. i am trying to do a mini me swap for my 99 dx. is one of them better than the other? also are the spark plugs on the same side of the head because i want to but my d16y7 valve cover on it (hopefully) so it doesnt say vtec.

 

Y8 Valve covers don't say VTEC.

Yes, the Y8 head has a better design "quench zones".

 

y8 is better

 

Spade, don't forget about OBD I, and OBD II. I heard that the Y8 had weaker rods...But better/best intake manifold design. Hence the "mini-itr" manifold.

 

In your situation i would go for the d16y8, it will be simple plug and play...as opposed to the 0bd-1 wiring of the d16z6...which will not work unless modified.The d16y8 will also yield higher compression compared to the d16z6..and the intake manifold on the d16y8 has shorter fatter runners which makes for a better design.
Good Luck

 

He's talking about heads. So I didn't need to mention anything else.

 

****...I can't read today.

 

[jerky voice]Yeah, nice goin' there ThunderLips[/jerky voice]

 

y8 heads are welded= smaller combustion chamber=higher compression.

 

y8 got like 2 hp more. 127 compared to the 125 of the z6

 

either way i say get a after market head. look up JG for there heads. the redline is a street head with a mild head job and the PRo series is there race head for sohc turbo and all motor cars!go to http://www.JGENGINEDYNAMICS.COM