Builders: Square engine, Over Square, or Under Square for you?
- I actually like a real engine in this setting. The BB 400 mopar. 4.34 x 3.38
- Chevy guys would say "gimme the 4.12 x 3.75 small block 400
In that case (here comes the hate) I would take the Chevy.
The deck on the 400 is so tall and the stroke so short that the R/S ratio is on the high side anyway and the piston would be horribly top heavy.
You start getting to 8k plus with a piston like that and your ring seal (under load) will be compromised too much.
Even if you coated the skirts and you were running with a clearance of .0015 (or less) it still would be far too compromised to be competitive.
If you could get a 400 block with say a 9.200 deck that thing would smoke some ***.