Blank Canvas Engine Install Recommendations
 

Working with a rolling 77 targa chassis on a budget which engine would you recommend? All the oil cooling was gutted even the tank. Fuel hook ups and wiring harness are stock and in place.

Sticking with the original 2.7 if the 3 plagues have been fixed (Carr Chain Tens, Timecerts, can't remember the third)

Installing a 3.0 SC motor (what to look out for here)

3.2, but I think that is the most expensive

If I go 2.7 or 3.0 do I go CIS or PMO carbs?

Working on a budget here so the best bang for the buck to get me motoring down the road.

Thanks all! SmileWavy

Budget and Porsche don't go together. Buy Wayne's books and read them. How much cash do you have to spend on this project? A 2.7 or 3.0 core will cost you between $4500 -$ 6000. A 915 tranny $1500. Then add another say $10,000 to rebuild motor and tranny if you do all the work yourself.
That's being optimistic. Throw in some oil lines, oil tank, thermostat et that's another grand or more
Easily. You'll want to replace all fuel lines et while you have access more money. I would replace wiring, et. By the time your done you can easily have more money in the car than a 77 targa is worth. I havnt even mentioned brakes, suspension, body work, paint, targa top resto, interior.
Can you show us a pic of your car?

Poor choice of words "budget and Porsche" I was trying to get an idea of the cost benefit of going for a 2.7 or a 3.0. If I can save money going for the 3.0 then I would go that route.

My car is not actually a roller, it is a running driving 912E conversion. It is running a 914 76 engine with a G23(912E) tranny. The conversion is done very well. I am looking to convert it back at some time to the original flat 6. So the information you have provided is a good start to my long adventure in converting back. I believe I can still use the same G23(912E) tranny.

Am I shooting myself in the foot buying a "rebuilt" motor ($7500) that hasn't been tested and no documentation or one that was pulled from a wrecked running car that was stored 20 years ago ($5700) and not having either rebuilt. Then installing it?

In reading your statement above, you are talking about returning the car back to original configuration, but you say it is a 912 and you want to go back to a flat 6? the 912 would have been delivered with a 2.0 L flat 4.

So for clarification are you trying to return your 912 to original configurations or are you wanting to mod it by installing a 911 flat 6 ?

The car is a 1977 911S which was converted to a 912E which never existed (1976 was the only year of the 912E flat 4 engine). I am looking to revert the conversion back to it's original flat 6 2.7 or another flat 6 engine.

Keep your eyes peeled here and you can find great deals on running motors- you might even do a wtb ad. Get a 3.0 or 3.2 IMO-

Lots of choices. You may want to start a detailed list of all the components you will need. Such as ignition pieces, oil tank and lines and cooler, fuel pump and filters and lines, and the exhaust. Then there is all the support electrical wiring. And gauges, it just goes on.

You, ideally, would want to get a completed of a motor set up as possible. In other words try for a motor that has everything from air cleaners to muffler and the ignition. Otherwise you will be niclkeled and dimed to death.

I think any 2,7 with carbs or a 3,0 with either carbs or the CIS would be a great motor. You will find that all the little extra pieces will add up quick.

You have lots of work ahead of you. Good luck.