The 3.0 is the "strongest" engine to date. It's true, I read it on the internet.
Craiglist Ad:
"1981 porsche 911 sc 5 speed, sunroof, very fast 13,900 or best offer
selling my beloved 911 porsche , needs some tlc,but runs great ,81 911 sc,3.0 liter.5 speed,17 cup wheels,130,000 miles,no ac,sunroof,needs new headliner,new battery,new h4 headlighting system,new rear tires (wide),power windows,power mirrors,this is a very fast car, but unfortunatly it has to go,ill relistlater with pics,has a 400watt stereo system new speakers, loud,whaile taile rear spoiler and rs america front lower spoiler,this car is not mint but a great first porsche 911 ,this 3 liter was the strongest motor made to this day, it was the base engine for the turbo 930,s. asking 13,900 or best offer,pleae call"