I know im going to get flamed for this but i really need to know.....I need to know if im running a stock b20b with a b16a2 head will my pistons slap the valves....i have searched and searched and no one can answer the question....So again will the pistons hit the valves.

 

with the b20b, non milled b16 head, and a stock 3 layer head gasket, you'll be able to run up to CTR cams without any pistin to valve clearance issues! if you really want to make sure of it, you can lock the vtec on and check how much play you have with the adjustable cam gears!

 

Im looking at a set of je pistons (b20vtec) and a set of stock piston for the b20. All 4 valve relief set closer to the edge of the piston on the je. so my assessment would be the je will work in either setup up but I wouldnt trust the factory in the hybrid setup