Different bore/stroke within same engine

[RETHomer]

Can anyone determine the advantage of running two different bore/stroke combinations within the same engine?
I just read a V8 racing engine buildup in which the author said he will use two groups of 4 cyl. displacements that will be within 0.01 ci of each other.
Didn't say how cylinders would be grouped (left vs. right bank, corners vs. inner, odd vs. even).
Did say the connecting rod length-to-stroke ratio would be similar for each grouping. Any thoughts?

 

[ads22]

Well I guess I'm only half gullible, since I did type "supposedly"

I did dimly remember the long and short ports, are they really as much different as the intake trumpet lengths in that photo?

Some of the engine development was done here in Richmond, VA USA at the former Reynolds Product Development Lab, I do know a guy who worked there, maybe he remembers something...

Regards,

Al Seim

 

[patprimmer]

From what I can tell from a photo, and from what I remember from some years back since I looked at a factory BBC head, the difference seems right to correct for the substantial difference in port length.

Regards

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