I have a 1970 911E with a 1974 911 2.7L engine. I'd like to create a 2.7L RS-spec engine. My current engine would be a good candidate, but it runs fine, and I'd like to be able to drive my car during the rebuild. My plan would be to buy a blown engine for cheap, and build a new one while still driving my car. Why buy a running engine for more money, if I'm going to take it apart and replace parts, anyway? After the rebuild, I'd make the switch and sell my current engine.

What would be the best engine for such a project? Or if not the best, what years and displacements would be a good starting point? Should I avoid the mid-70's engines with the case stud problems, or do the case-savers do the job? Also, should I not use my 901 tranny?

Charlie