Originally posted by mtber
Lead, you could use ls pistons in your b16 without having to worry about the piston valve reliefs causing problems as long as you don't plan on doing major cam timing adjustments.
Another cheap solution you may want to consider is a MLS .056 headgasket.
A b16a2 has a c/r of 10.4:1 using a cotmetic mls headgasket it would put you at around 9.6:1 or so which is fine for a boost application 
A c/r of 10.4:1 is still safe for boost (.6-.8 bar) it just has to be tuned conservatively.
+1 listen to this guy!!!!!!he's right!!!!!! you wont have any problems! but even if you played with cam timing, you'd have to move it so far that it wouldnt run very good anyway! if you're runnin boost then get em!