Porsche 944s2 engine

[924Guy]

Definitely an expensive rebuild, either way you look at it! Yeah, pistons were around a grand or so for the set, IIRC. Best thing would be to talk to US Chrome about it, if not Jon Milledge.

Again, the car I reference was not an IT car, so coatings not a concern - but a good point.

[anthony1k]

Back to the original question: to sleeve or not to sleeve.

Both have pros and cons. Sleeving (dry) is a common procedure that many good machine shops can handle. Cast iron sleeves are fairly inexpensive. Alusil honing on the other hand requires specialized equipment and knowledge. Most likely the block will need to be shipped to one of few shops that can do it. In the end honing will most likely cost more.

The risk with sleeving is that if it is not done properly, it will result in catastrophic failure. 3.0 blocks are expensive and are getting hard to find. If the engine builder and the machine shop have done sleeving on 944 engines before, I'd say go with it. If not, look elsewhere

Another thing to consider is timing. There is zero margin of error in these engines. Make sure that the builder knows how to set the timing after the compression change.

[GKR_17]

Back to the original question: to sleeve or not to sleeve.

Well, since the ITCS doesn't mention sleeving, it's not legal either.

[924Guy]

Well, since the ITCS doesn't mention sleeving, it's not legal either.

Oh, knock it off Mr. Big Chief No Fun!

I would definitely not trust my block to a shop that hadn't already sleeved 944 blocks successfully (with references!!!)...