Hi every one I am new to the form and excited about my new build and hopefully you guys can help me on my journey. So I have a k20a2 with wiseco 12.5:1 pistons and drag cartel 2.2 cams with stock valves. I am about to clay my motor and was wonder what is the min or max clearance that I can have on the intake and exhaust side when measuring the clay.

I have search all over the internet and cant find specific spec clearance for k20a2 motors. I found some generic measurements but I rather have hondas exact clearance this is what ive found

"Opinions may vary between piston and valvemanufacturers, but a popular consensus is aminimum clearance of . 080-inch for the intake and . 100-inch for the exhaust"

 

Those numbers are a bit conservative. I would say keep a minimum of .060" on either side.

 

Thank you very much jrcivic