944/968 Engine

[BAZZ69]

Hi. Im sure there is probably something on here about this, but i cant find it. What is the difference if any between the bottom end of the 944/968 engine. I know the head has the variocam. but is there any difference in crank and rods, ie lighter/stronger crank and rods in the 968 ??Can you tell the difference from looking at the outside of the block??
Bazz

[GC8]

There are differences, but its been a long day and they escape me. Try ringing Jon Mitchell: he will be able to tell you immediately. I believe that the oil pump is different. There were certainly changes made to prevent oil foaming at higher revs.

[GC8]

Oil squirters and a shallower water jacket. I think that they had a crank scraper too, or something that affected air movement in the crank case.

[NJH]

Yes I think is the short answer to all of those points, its a bottom end much better suited to high revs than the S2 lump although many think no stronger.

[blade7]

AFAIK the 2.7, S2 and 968 blocks are pretty much the same design. Supposedly Porsche recommend changing the rods on the early 968's if the engine is ever apart. I was told by someone that knows the engines inside out that the squirters don't actually do much on a 968.