I'm using b16a head. Now I plan to change my b16a head because. There is some white smoke when vtec engage. My mechanic suspect my piston o ring problem (mechanic suggest to change new piston 81.25mm and mild block bore.) The other hand I ask previous owner of the car ( he say before the car pass it to you, I change the piston and ring. He suggest me to change the head,maybe valve seal problem) My engine part are type R except head is b16a. I think he sell to some one. In this case what should I do? if go for what mechanic suggest will be cost about $927. if go for previous owner suggest will about $150. Who will be the best bet? any suggest? Thank You
PS: I thought B18cr valve size is bigger than B16b, that's what my friend told me
(I'm sorry that asking question in this but I lazy to open a thread)