Large valved 273

WHa is the max overbore possible with a 273? How deep is the cylinder notch? See where I'm going here? If you over bore .060, you have a .030 notch before you do anything, etc.

COmpression...

I don't know what is available in SBM aftermarket heads chamber wise compared to stock. But it would seem there should be a decent amount of choices and also a domed piston, block decking, head cutting are also options to improve compression, and for a street engine it would seem that something 10.1 to 11.5:1 with aluminum would suffice.

ALso, I wonder if you could recruit SBC or SBF parts for one of these builds?


Keep in mind this IS ALL THEORHETICAL DISCUSSION.

IF you wish to conclude a 360 is an easier path and more sensical, well you are right. This is for the mind teasers and bench racers.