2 posts for the same question???? You do not want a pre-62 318 for a B-body install, period!!! Check the link that was provided. .
I have a line on a '66 Poly 318 and trans about 150 miles from me; should be around $350 for both engine and trans but I will check if you want me to investigate; let me know. Gary P.
I know where there is a 56 4 door sitting on the back of a used car lot. It has a poly v-8 in it. The guy said he wanted $700 the whole car and it ran. looked like aprts car to me and seemed like too much $$. If interested I can try to find it again for you. Corndog