Making a short stroke out on 2.0

[volktek1]

Has anyone built and short stroke out of a 2.0? I was told you use 2.7 top end on a 2.0 bottom end. I guess this makes a high revving engine. I was looking for someone with this set up to ask a few questions.

[Flieger]

That means 2.5 liter short stroke. 90mm pistons and 66mm stroke. The 2.0 already has the shortest stroke crankshaft of any production 911 engine.

[volktek1]

Is this a pretty good set up for a street car?

[Flieger]

If you like revving to the moon around town and have short gear ratios, then yes!

[Jimmy18E]

As Flieger stated, 89 or 90 mm cylinders on a 66mm crank gives you a 2.5SS. If you already have the 2.0 case, great you can go with that ( with some work) and if you do not you can go with any of the later cases, 2.2, 2.4, 2.7 with the 66 crank.

I am running a 2.5SS on the street and really like it. Mine is pretty built but I have been in others, you can putt around town just fine but most 2.5s need/should be reved to get the most out of them...... If not why even go short stroke.

Jimmy

[Danimal16]

I just got my 2.5 SS back in my 71. This engine is FAR more streetable than the old T engine that it replaced. I have the stock 901 (911) gears in the transmission and went with Mod Solex Cams. This thing is a stump puller. The power band is just a HUGE improvement. I would do it again.

DanB