Got $100 for my B-day what do I get?

Let me see if I can shed some light on this one for you....

1. I have yet to see a Modular overheat with under drive pulleys. It may have been an issue with the old Fox Body cars, but the S197's with their more modern cooling system and generous radiator surface area doesn't seem to suffer at all from this. Besides, if worse comes to worse, you could always swap out your stock 192-deg thermostat for a 180-deg one.

Look at it this way. I'm running under drive pulleys, a pair of 10" electric fans and an electric water pump on my 5.4L hauling nearly a 6,500lb vehicle weight around on a daily basis and my truck never moves out of normal operating temperature. Hell, my fans hardly ever even kick on.

2. Unlike OHV engines, Modular engines are "internally balanced". Lightening up weight at either end of the crank shaft isn't going to throw a wrench into the mix one way or another. As long as said weight is neutral balanced, there won't be a problem.

This is also why the 4.6L, 5.4L an even the 6.8L have all used the same harmonic dampener over the years.

Awaits walter's impending "I spun a bearing" thread.

It would be a cool set up, but I wouldn’t lengthen the stroke of an engine I was intending to be a “screamer”. Lengthening the rod increases the work and time it takes for one complete revolution of the engine. Increasing the displacement by widening the bore is the way you want to do it. Which unfortunately is limited with our close bore spacing.

Seeing as it’s supposed to be a completely new design, I don't imagine much of anything from the old 4.6L is going to transfer over unfortunately. The bore spacing is supposed to be much wider, so heads and intake are out....as well as exhaust components. Intake maybe?....but then I imagine there will be subtle enough differences in them to make the previous model unusable.