And this motor ran?

do a valve job , put them on and run it

 

Build the best sbc combination 400 with 327 crank
354 ci

 

Since most 327 cranks are small journal, use a 307 crank. It's a large journal, same stroke.
r

 

yes but he has a big journal 327

 

Even a large journal 327 isn't big enough for a 400 block. 2.450" mains VS. 2.650".

 

there is both bearings and shims to fit the
crank in the 400 block

 

Yeah, I figured there probably was. I was just showin' off

 

If you're going to build a 400 with stock parts, except for pistons, this is a winner.

Also, you can use 327 pistons with the 5.94" GM rods in a 350, for a cheap 6" bottom end. 3.48-3.25 = .23, 5.7 rod + .23 = 5.93. pistons pop up .01", should be room for cheap pistons to come up some.