Original 6 - Rebuild or upgrade Options

[kenschipper]

May need to rebuild the original 2.0 6 in my 914-6. Trying to decide whether I should do the rebuild or replace the motor with a 3.0 or 3.2.

I love the sound of the original 6 but would appreciate a little more low end torque. I'm not sure that rebuilding the original 6 would be any cheaper that the 3.0/2.3 swap. There is a 3.0 with fresh rebuild on ebay right now that will go for less than $9,000. Those with experience may want to chime in.

Another question is whether to go with fuel injection or back to Weber's or PMO's. I know of all of the advantages of injection (more reliable, less power loss in the mountains, probably better milage) but the sound of carbs is hard to beat.

Do the 3.0/2.3 engines require an external oil cooler, don't remember at the moment.

Does anyone remember a link here on the site dealing with a 3.0/3.2 transplant.

[kenschipper]

Any thoughts on this particular configuration (see last paragraph). Would this work with 3.0 fuel injection our would it be smarter to go weber or PMO to get it to perform right.

I remember reading somewhere what the advantages of a big bore/short stroke engine was but do not remember right now. Any insight on this?

We have a very rare 1979 porsche 911sc engine , built to big bore/ short stroke 3.2 liter, complete rebuild to original specs. Has Std crank that has been magged & polished, new bearings, rebuilt oil pump, new chains, ramps and 930 turbo tensioners , new JE pistons (10.5 to 1 comp) & mahle 97mm nikesil cylinders .. Cams are 964/3.6 grind specs, this engithe pistons do have deep valve pockets, so you can run larger cams. The heads have been rebuilt, ported and polished , 3 angle valve grind, new valve guides, new springs.