This is the ultimate upgrade to your cylinder head. We've been using this on our CNC aluminium cylinder heads for a while now and it works great
The first thing you need to do is get your new cylinder head in hand. We have a tutorial on how to counter bore your aluminum cylinder head here. If you're about to upgrade to a CNC alumunium cylinder head, then this is the ultimate upgrade for you. Here we'll show you how to counter bore your aluminum cylinder head and how we did it!
asg ultimate upgrade cnc aluminum cylinder head aug type