Good lord..so much misinformation in this thread.

Accordsleeper seems to be the only one posting facts (blackmagik posted one i think, too). The ringlands in the H suck, but that is a problem easily fixed. Turbos + high compression = bad is a thing of the past. The rod ratios aren't as friendly as B series motors.

The sleeves may be different, but they can still hold their own. If that is the only thing that the F has over the H, I'd take the H anyday.

Fuel saves motors.