I'm glad you found a new heart and all the goodies for your car, at a great price. My brake on my car seems to have been the engine, in this round of my restoration.
The best deal I can find on the internet.
Zero hassles. Drop it in. 36 hundred bucks.
http://www.jegs.com/i/Blueprint+Eng...&cagpspn=pla&gclid=CM2q3LTGurwCFeVi7AodYwYADQ
Here's some carnage at 1,000 miles on one I rebuilt...
Rod bolt failure.
Memo to self: Do not reuse rod bolts.
Mr Fix IT, I guess you already know that an LA 318 will bolt in place of your poly 318 using the same transmission and mounts. The front cover , water pump,,distributor, starter,and even the crankshaft and pulleys will interchange also. When my poly gets tired I'll probably replace it with an LA engine because it is cheaper to rebuild. Good luck with your stub frame project, it will be better than new when you are done!