hold on i'll get pic of the z20e i have ....maybe somebody put an z20s in it before i ever saw it ...it has been around since 1981 i'll post it after i get dressed .......maybe your right mike.....we also have an z22 head but its bolted to a running motor or i would post pic of it too
mike i posted this in another thread here it is again for you
if you look at this pic you can see the space between the valve and the side of the combustion chamber......3mm smaller...
z24 top and z20e bottom .......
so if i was running a cam that makes its hp/tq at say 5200 rpm (z20) and i timed it to the #3 hole it would move my hp/tq lower in the rpms (z24i 4wheel drive) ????
my setup is z24 bottom end and z20e head and cam
there are 3 marks on the top gear with numbers "1 2 3" factory setting are the # 2 hole... well on to the question...the other marks are for when you shave the head right?? what i'm after is this #1 hole is it advanced or retarded and how meany degrees ???same for the #3 hole advanced or retarded and how meany degrees???
thank you