73 1.7 Project, Engine Updates Options

[Robroe]

Bought a 80% done project. 1.7 engine has been rebuilt and lots of new goodies installed. However I don’t know what heads, and internals were installed. Engine has never had oil in it and looks like jewelry with dual Weber 44s, new heads and powder coated tins. I’m on a quest to learn what I can about this new engine. Other than the carbs, only other info I’ve found is a number 850910 stamped on the heads next to an intake port. Any recommendations on how to learn what I have without taking everything apart?

[technicalninja]

If I had that OUT of the car, I'd chuck it up on an engine stand and go to town...

I'd pull the tin off of it and pull at least 1 head. With the head off I could measure both bore and stroke. I'd have the head in hand and would be able to measure valve size and inspect the ports for work.
I'd check deck height and CC the head.

I'd first "pattern" the cam. Checking total valve movement will give "lift" and (with a degree wheel) I'd be able to verify duration, so I'd have some idea of "what cam".

With deck height, head CCs, bore and stroke I'd be able to determine size and compression ratio.

I'd also be able to determine competence of the engine builder and if it was excellent, I'd feel more comfortable about using the case assembly without tear down and inspection.

The biggest problem with doing it this way is getting the motor OUT of the car.

You're already there...