289 vs. 302

[mean81GT]

pkrwud's point is this. While your analogy is very nice, it isn't exactly true. yes, cars that make 10HP per lbs will accelerate the same, all else being equal. but, one motor, let's give it the fictitious name "289", will have a different powerband than another motor, let's call him "302". With the shorter stroke, it takes "289" less time to make it's 4 cycles. "302" takes a little bit more time to make his 4 cycles. it takes a longer time for the piston to travel from TDC to BDC and back in "Mr 302" than it does for "289". Therefore, "289", using different wording, rev's quicker. Even if "302" is making more total hp, it takes him longer to make the cycle (rev) to eventually make that HP. Understand 72 Grande?