273ci thoughts?

66fs said

Oh, I thought we were having a conversation. If you really think I'd overbore a 318 to 340 specs, you'd be wrong. And if you think.065 of an inch larger radius bore makes any difference in a street engine you'd be wrong. Can you disprove my general flow numbers?

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I think I mixed up my thoughts and posts.. LMAO!
Oh yea, two he talks. Talking here, no other way.

On the .065 larger bore making a difference on a street engine, the truth is hard to find unless you clock it or dyno it. It’s there. How it translates in a vehicle is different. The amount of difference’s climb high and quick.

I can prove there is a difference! Wait! Why would I when it’s been published her and over again? What I do have handy though are cylinder head flow sheets from the same head showing the difference between cylinder bore sizes. Though it is far removed from its application in this topic, it does show a difference. I’ll scrape it up later.

From here on, it gets theoretical. As the exact build specs would have to be given and the best anyone could do here short of an actual dyno test between engines is a dyno sim.

It back to the street mention. The old adage is true, bigger is better on power production which I only trumped by a positive displacement pressure additive.
Turbo/super charger.