[lineslinger]

I am in complete agreement with you Anthony, the 3.78 offers plenty of torque, but for my needs/desires, the longer stroke along with the higher compression offered by the 3.98 fit my plan to go faster sooner, quicker. I wanted the stump puller, especially from a standing start.
My build was from the bare block up, with the emphasis on a strong bottom end, and a new steel crank, not nodular iron, this was important to my plan.