Rebuild a 2.7L or 3.0L six motor, which is cheaper? Options

[boxsterfan]

Which /6 motor is cheaper to rebuild? 2.7L or the 3.0L?

1. Assume core motor is in good condtion and no crazy findings when you tear it down.
2. Assume you are building the motor for longevity
3. You are putting this in a 914/6 conversion (was /4)

[0396]

JP,
I've always been impressed with your thoughts and the selection of quality parts that you post for your builds.
I have a few questions regarding the pictures from above.
I noticed that the rods were never touch as in balancing. But I did notice that some rods had a different color to them. Did you gather many sets and got as close as possible to complete a set? Also, I noticed that you don't knife the crank.
Is that another school of thought? I do know that Porsche Motorsports doesn't knife their cranks too.
Keep up with the great work.

[J P Stein]

JP,
I've always been impressed with your thoughts and the selection of quality parts that you post for your builds.
I have a few questions regarding the pictures from above.
I noticed that the rods were never touch as in balancing. But I did notice that some rods had a different color to them. Did you gather many sets and got as close as possible to complete a set? Also, I noticed that you don't knife the crank.
Is that another school of thought? I do know that Porsche Motorsports doesn't knife their cranks too.
Keep up with the great work.

The rods (& crank) were right out of a good running engine then reinstalled...in order, of course. The original motor (shortblock) was from a 76 911 (IIRC) it came off a shelf, having been rebuilt about 10 years before .(all history was verbal)....the cost to me was $500. It got torn down and was in decent shape, considering. The rod's histories were unknown, they looked to be factory balanced.....I think the "colors" you see are from the lighting. The crank was stock. The cams Solex were one NOS and one reground by Weber....a couple hundred bucks.....that grind was the cat's ass for AX.

Bought a set of Webers that were sitting on another shelf for 10 years for 800 from a friend for . I rebuilt em'........they were nice and learned to tune em'( no small chore, it took me about 6 months to get em' spot on.) That is worth it's own thread.

I set the revlimiter as high as 7300 but mostly set at 7100......knife edge? why? That combo also makes a great street motor. The stock Porsche balancing is top notch.

You may be reading about a long streak of luck........I'll take it. I took a lot of advise about the builds......from folks I had learned to trust. It didn't happen over night....I originally put a 2.4L in the car, but wanted more power......did a lot of networking with nice guys. I was happy with the outcome.....the engine was happy also.

I sold all my Porsche stuff and bought a 65 FB Mustang...got fed up with that & bought a Miata. My wrenchin' days are over. Nice talkin' to you.