Originally Posted by Jafro

Honda engines have one disadvantage over other makes in that they spin backwards when running. Either that or Honda engines spin correctly and everyone else got it wrong. Either way, the only upgrades you will find for a V6 Honda motor will have to be out of another V6 Honda or you'll have to replace the whole driveline. As a result of the engine spinning backwards, so does the transmission. If you went to a different motor and managed to make it somehow fit, you'll end up with 5 reverse gears, and one really low forward gear.

There. In 5 sentences, more info than you would have found on 4 forums in one day regarding what you're doing. See, you've been in the right place all along.