Hi everyone i have a stop gsr head
i want to get a b20 block
​​​​​​what is my best option b20b or b20z
all motor

 

I would use a B20Z for a more powerful combination if the short block is going to remain otherwise stock. If you intend to build a proper B20VTEC engine with custom rods, VTEC relieved pistons, and a main girdle... it matters not what is stamped on the block itself.

 

thanks and if i want to bill a relieeved b20 vtec what i need to get top to bottom..

 

I assume that English isn't your first language... and I suspect that this is why I am unsure as to what you are asking here. Please clarify.