A couple of things.
A new iron block is about $3600US, which is still a good deal.
A Jerico is a race gear box and will not explode after repeated clutch dumps at 5000 RPM.
Your T56 Magnum will.
Might be great street or road box, but it is not a drag box.
The TL is a great street box and will never be matched by any thing built after it.
It was used in the koolest cars ever made.
I actually have a rather old Currie housing, maybe 20 years old. And know quite a bit about their history.
I bought a new Currie maybe 7 or 8 years ago. just saying.
Cross bolting will always be superior to splay bolting.
And yes I have enough aftermarket parts to assemble a complete FE power system.
![Tongue :P](http://fepower.net/simplemachinesforum/Smileys/default/tongue.gif)