is a b20z head the same as an ls head, and how much boost can a b20 take, assuming I throw in forged pistons and rods, and tuned hondata....can it take the samead an LS, also I hear b20's sleeves aren't very strong...can anyoneconfirm any of this?

 

same head

 

Ive heard the B20 head has different cams. does anyone know for sure?

 

B20 definitely has different cams.