Build the 289 or 302???

[John Z]

Originally posted by fordkid68
well this is just me but I would rebuild the 289 and have it board out to A 302.
ford kid

You can not bore a 289 to a 302 about the most you can pick up with boring is 298 and that's with a 0.06 overbore. As said by others, the increase cubes to 302 comes from the stroke.

In general, longer stroke gives more torque, shorter stroke gives faster reving, but this would be for an engine with the same displacement. In general when you increase the displacement by stroking, you get more torque, but this may also produce more horsepower as torque and horse power are related by the equation
hp = torque*RPM/5252
Ever notice that torque and hp are equal at about 5200-5300 rpm?