Quote:
Originally Posted by crysalis_01
It was strictly hypotheyical. If you want a factual limit to the Coyote's block design, at least one aftermatket design has it up to 351ci. But I can't see that being an engine that'll last very long. Besides, it's unnecessary to reach for more than a few more tenths of a liter if they're going to remain as a crossplane crank design. The engine revs high enough to hit their power goals, I'm sure.
However, if a flatplane crank design is to be used, it may in fact be more desirable to lose a few tenth of a litre to just under 5.0 for the sake of balance.
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Then hypothetically speaking, Chevy can drop in the LSX454r. 720 horsepower naturally aspirated.