Mid Week Match-Up: Find This Rambler An Engine

For this week’s Mid Week Match-Up, I’m going to throw a curve ball.  Instead of finding a car for a reader, find an engine/transmission for this car.

The car in the photo above is a 1964 AMC Rambler offered for $700 via craigslist in Thousand Oaks, CA (tip from Sean S) without an engine or transmission.

What do you think should power this classic?  Comments below.