Since the LS and B20 block are basically the same thing would a ls header fit on a b20 motor and head? or is their a height difference between the b20 head and the ls head?

 

No there isn't. It will fit.

 

It will fit, almost everything on the b20 and b18 are interchangeable even the ecu's.

 

Fits fine It worked good for me.

 

thank you what sucks is a local speed shop told me that the deck on the b20 is shorter then the b18 and the downpipe for a ls header would bottom out. they wanted to charge me almost 700 bucks for a header that so off the wall company ive never heard of makes.