Help me win this argument 400 in a 72.

MTmopars said

I still think a stock stroke 400 would make a ripping street engine. Look at bore vs stroke. What makes the 340 a better performance engine than the 360? Compression an bigger bore with smaller stroke. That baby winds up fast... What the 400 lacks in displacement it would make up for in weight and revs. Just my opinion.

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Not to disagree, but I've seen this debate elsewhere-in the Mustang world...302 v stroker 302 or even 4.6. The 4.6 has a longer stroke by over half an inch but will rev as well or better than a 302...even stock. Same goes for a 302 vs 347. Yeah, there's an extra 0.4" stroke, but it comes down more to how it's built than the intrinsic dimensions of the engine.

Just my opinion here, and I'll freely admit we're straying from the original intent of the thread, but I don't believe a 340 is necessarily a "better" engine than a 360 for performance purposes...it certainly came from the factory that way, but if the 360 ever came out with 10.5:1 compression with a healthy bumpstick and above par induction and exhaust, it would arguably be a more powerful mill...

OP: Sorry for derailment...

EDIT: I'm still for a big block, but the rest of the car needs to be put together to accommodate.