Need advise bolting a np445 to a 325 poly

jas0162 said

If you could find an old hemi or poly truck bellhousing and flywheel you might be able to make it work. The trouble there is it would have used the old 420 transmission, which has 10 spline input and a little different bolt pattern, weird starter, and it will be a huge iron housing with mounts on the side. The adapter to the LA stuff would be better

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He'll have just as much money wrapped up in finding all the old stuff to work, plus the aggravation of finding all of it and now he has a bunch of weird stuff that's hard to find replacement parts for. Or he could use the Hot Heads adapter kit. I'm not gonna lie. It was expensive. Mine was a tick over 700 dollars shipped, but it's nice. It's worth every penny.