I have a a nice 1974 2.7S engine. The engine number is 6342343 which was used for 911S and U.S. Carrera engines. This is, I believe a one year only configuration. Early , simplified CIS (like the 73.5) but 2.7 with early heat exchanger headers, etc.
Also, these were rated at 175hp vs. the 165hp of the later middies.
What is the value? any increase in value due to the one year config, higher hp, etc.?
Runs great and leak down is 4-6% on all cylinders.
https://youtu.be/I1QQVyT0We8
PS: I am ready to modify this engine and build it into a RS+ spec....but...and it's a big butt.