Now that I think of it, the engine weight isn't exclusively on the front end. It's part of the total weight and it still loads the rear some. Buuuut, the engine is well ahead of the balancing point. The Tahoe has a weight distribution of 52/48, so the balancing point is just ahead of center, which I found to be right at/just in front of the front door handle.
I'm picturing the Tahoe hanging by a cable connected at that balance point, like a Christmas tree ornament. If you removed 10.5% of the weight from the area in front that balance, the Tahoe would tip back, nose to the sky. But if you moved that hanging cable back 10.5%- would it balance again? I don't think it's that simple... Or is it? Or is it plenty close enough to not ramble on any more about it?