That is correct-- easier to get a 4 bolt main block in a 350.

So sue me for 2cid. I have always called it a 406. A 4.00" bore x a 4.00 stroke is a 401cid and .030 overbore is usually 5cid sooooo a 406. Never heard of a 408.

 

No matter what you're still wrong, the 406 in question is a 406 not a 408 and has a 4.155 bore so the pistons won't fit in a 4.00" bore no matter what.

 

Like I said there is more than one way to build one. Ya can even get there with a BB.

 

Since we're talking about a sbc 400 theres only one way to make a 406. And i'd like to see you fit a 4" stroke in a sbc 350 block.

 

Tear a few down that were built BEFORE the 400 came out.

 

For all of this work you guys are talking about with this conversion stuff.....why wouldnt he just build the lt1?

 

 

cause that wouldn't be difficult enough