Aluminum 833OD behind a 440...your thoughts

FUGITABOWDIT.

-Firstly, what 67Dart said.The rpm drops are ridiculous for long-winded engines.The ratios are 3.09-1.67-1.00-.71/.73......The %drops are; 54%-60%-71/73%. That means if you typically outshift 1st in city traffic at 2800/22mph(with 3.23s), your rpm will drop to .54 x 2800=1540. Do you see a problem with that? Ok so now you accelerate to 45mph in 2nd. Thats 3000rpm, and shift into direct 3rd. Rpm is1800. Now you're gonna pull that direct gear to 60/2400 or 70/2800.And finally into O/D @1700 to 2000rpm. Now imagine your warmed over BB idling down the road at 1700 to 2000.Depending on how warm your cam is, at this rpm there is still not enough airflow through the intake system to completely prevent reversion. So you will have a tough time getting the a/f cleaned up enough to take advantage of the reason for the o/d in the first place.
But it gets worse. Say you're out playing around, banging through the gears. If you forget about how weak the o/d gear is and bang it in there;POOF its gone. Even at 1/2 throttle, that warmed over BB will dynomite that gear. And when it spews its shrapnel throughout the box, who can say what you will have left,by the time you come to a stop?
But it gets worser.Back to banging gears. Say you wind it out in first to 6000/48mph, and hit 2nd. You will come in at 6000 x .54= 3240. Your BB better be making some pretty good torque to get out of that hole.So anyway, about a minute and a half later you've pulled 2nd to 6000, and shift into 3rd/Direct. You're doing 89mph@3600rpm; another deep,deep, hole.So you're gonna want to pull those 3.23s to 115/4600.
This is all messed up.It will be terrible in town, terrible at the track, and not get any decent gas-mileage. But it will be 35 pounds lighter.It sucks to be lighter and slower.
-Secondly, the o/d gear will not tolerate the tiniest mistake. I blew up 2 of them, to learn that.
-Thirdly, I stripped the cluster drive out of a third one, with a mild 360 (230*/549 cam and Eddy heads ).
-Put 3.55s in it, and call it done.At least for a while;until the 8.25 signs off. That BB wont notice 35 pounds
Your results may vary.