d16y8 head gasket

[69crx69]

I am doing a motor build for a friend of mine and i used a compression calculator to see what i could possibly go with. In the head gasket section there is a d16y8 gasket and a d16y8 2-layer gasket. WHERE do i find the 2 layer gasket. The auto parts places are stumped. Any help would be great.

 

[civiclxb16]

http://www.nipponpower.com/engine/index_gasket.html

that is where my boy got his gasket hope that helps

 

[69crx69]

thanks. I also wanted to know where i can find dohc zc pistons.