Just wanted to say I have the exact same setup from 440 source on my 440. The alternator is originally off an early 90's 4Runner I believe.

In my opinion its 100% worth the upgrade. Less weight over the nose of the car. Smaller more compact unit that frees up space underhood. Much more reliable part instead of the 40 Year old original units. Much steadier output at idle.

I love this conversion.