409 question

[jbholley]

I recently purchased a 64 4dr hdtp with no drive train. I have a 400 sb sitting on a stand I intend to put in it. My question is what exactly made up the 409 was it a 400 block with bigger pistons and heads or was it a big block engine. How close to a 409 can i get by boring the 400? Thanks,

 

[dunhamfield]

348-409 engines are a series of there own. Not small block, Not big block.
There are alot of photos and information on this site,
Need to sell that 400 and find a 409bang