shave the block/head to increase compression on d16zc Gen 1?

[1986sicivic]

how much can you safely shave the block/head to increase compression on d16zc Gen 1?

[dougie_504]

You mean D16A8 or ZC? No such thing as a D16ZC.

Probably 0.010 is safe.

[zhong]

D16ZC i believe is equivalent to D16Y1 in the states.

[ralph_ef9]

black top or brown top?

[1986sicivic]

that would be the brown top d16zc DOHC Gen 1, i was planning on shaving 1mm off the head

[markismaximus]

D16ZC i believe is equivalent to D16Y1 in the states.

thats D16Z6

[1986sicivic]

Should I assume no one knows.

[1986sicivic]

and its the JDM version of the d16a1

[ralph_ef9]

brown top is rare,
use the piston off 2nd gen black top zc will give u better compress ratio.
u have to watch the limit of the head if u shave it.

[1986sicivic]

Yeah it was brought from Japan cut in half and was welded together back in the days you could get them complied but the body is rusted and the engine has done 350,000km with no troubles so I'm giving her a birthday and transplanting into another AH civic.

[dougie_504]

Hmmm. Ask ~Sp33~ (http://www.ozhonda.com/forum/member.php?10268-Sp33) he usually knows this kinda stuff. He's a bit of a D-soldier.

[hmetro24]

just a question, Should i upgrade anything if i am going to use high compression pistons,mill the head, port and polish the head and upgrade camshaft.

[dougie_504]

^ adjustable cam gears, your valvetrain possibly, maybe shotpeened pistons if you're chasing big power.

[1986sicivic]

if you machine the head more then 0.020" (0.5mm) you will need adjustable cam gear to make up for the lose in timing.

[ralph_ef9]

any1 know where to get aftermarket piston for those zc?

[hmetro24]

any1 know where to get aftermarket piston for those zc?

Try ebay.com