Beginner needs help!!!

[Manudfr911]

Hi Guys

I am a total beginner-it is my first time restoring an early 911-I work with a mechanic in the south of France who specialized in Porsche but not the F model

I have read a lot of posts on this site and others, try to educate myself, done some research but I am currently in a dead end.

I am currently rebuilding a 911T 1969 2.0 engine

I DO NOT want to increase the HP, the cylinders, etc...I am trying as much as possible to redo the engine as it was originally specified-the car is matching-and will be for street use only by the sunday driver that I am-Plus in France it is illegal to increase performance of a vehicule outside of the manufacturer tolerance.

I need to replace the cylinders and pistons to the original 8.6:1 compression ratio (and I know it s slow).

The pistons have been discontinued for years, sellers on ebay or else refuse to truly specify and verify what they sell, I did not find any good looking refurbished parts.

I am currently losing my mind looking for the right parts.

From what I gathered so far, since I want to something simple, plug and play, the best option for me would be maybe to:

Use a set of 80mm from 65 to 68 2.0 with a 9.0 ratio-these are fairly available
or
Use a set from 911 E 2.0 with a 9.0 ratio-these can be bought new from Mahle

But I am not sure what increasing the compression ratio would mean for the rest of the engine-the durability etc..

Of course if I also put a request in the "parts wanted" section of the forum, in case someone on the forum do have the parts.

I need all the help I can, thanks in advance

[66S]

I would use the 9-1 early pistons if you can find a set at a good price. Why they made 2.0E 9.1-1 I don’t understand. New Mahle sets come in Nikasil cylinders which presents the question do you need piston squirters installed in the case? Wossner sells a nice forged low expansion piston 9-1 in an 80.5 size so you could bore your iron cylinders and look original. No hot rods in France? Mon Dieu

[Manudfr911]

Thanks!
I found this set that looks pretty good and is fully refurbished-the seller is professional and have answered all my questions so far
https://www.ebay.fr/itm/235838807253

And no, no hot rods! I mean illegally they are some...legally you could do one but plenty of paperworks and additional headaches!

[66S]

Try eBay item 267083656664,listed as 2.0E but they are in cast iron cylinders, the pistons are not S, N or E and have that weird T look. KS made sets of E pistons in cast iron cylinders but I’ve never seen Mahles like that. The cylinder exteriors look practically new but ask for more photos of the wear surfaces. Good price, $750 and free ship

[Manudfr911]

Thanks. It could work. I'll ask for more pics.

[Manudfr911]

Ok Seller admited is set is a mix bag...so
I have also found some pretty good KC piston 80160 that reads on top 80,96. Does that mean that they could fit my cylinders honed to 81mm and where would I find the piston rings to fit such pistons ? Thx