size difference

What is the size differnce between a small block chevy and a big block buick.I want to know because I found a site that has sbc turbo kits(headers,2 turbos,intercooler and bovs) included

 

In cubic inches or dimensions ?

In case you mean the dimensions of the blocks:

 

My fault the sizes I need are the exhaust ports so I can know if it is wise to buy the sbc turbo kit and use the headers that come with it or just buy some headers and fab up the setup

 

Small block Chevy headers will not fit a big block Buick, or any Buick motor for that matter.

 

Give me some credit I know that much!!But I was wondering that how much space is between the ports so I can buy headers and a turbo or the whole kit

 

I measured a SBC outer most edges of #1 and #7 exhaust ports at 16.5". My stg 2 heads measure 18.3". The stg 2 heads would give you more clearance for adapters. I think you'll need 2"-3" of length to blend the buick exhaust ports into the SBC exhaust manifolds. Good luck and keep us posted!

 

There was a thread about this a few months ago, I believe.

Oddly enough, the only real difference between the SBC and SBB 350" headers is the flange. It would appear that if you take off the Chevy flange and weld on the Buick flange, it will work.