im going to buy a 68-72 nova this summer for me and my dad to restore and beat fords with. the question i have is, is it possibile to swap in a muncie m22 in place of the th350? if so how do i do it, also will only the 12 bolt camaro rear end fit in the nova or can i use a firebird/trans am rear end also? thank you .

Swapping a 4 speed into your nova isnt really hard at all. Some Nova's came stock with 4 speeds (never the m-22 "rockcrusher" your talking about) but some came with the M-21's. The hard part is actually finding the transmission. Cutting the whole for the shifter, rigging up a clutch pedal, and all of the other little thing are what really take time.

For your second question, any rearend will fit if you have the money to make it fit. As far as a direct bolt in replacement, I believe only Chevelles, Camaros, and other Novas will work, but the chevelle has coil spring where as the novas have leaf springs, so a few modifications are needed to make it work correctly.

Hope this helps.

Rob