Size between exhaust stud on 911 SC 1982 please

[iiXii]

Hello everybody

I nee to know the size between exhaust stud on a 911 SC 1982 and the size of exhaust hole;



I'm sure all the people on the site have removed a cylinder of SC!

Thanks a lot

[iiXii]

[iiXii]

2.59 or 65.78 mm

there is the hole to be measured please

[fred cook]

Use a caliper to measure the distance between two other exhaust studs and then add the diameter of one stud. That should give you an exact center to center distance. Be certain to measure on a non threaded portion of the studs.

[Walt Fricke]

All the 3.0 liter street motors, and most of the 2.7s, have 35mm exhaust ports.

The stud spacing for all intake and exhaust flanges from the first 911s through the end of the 3.2s is the same. So you can measure on the (unbroken, one hopes) intake studs to get this dimension perhaps more easily?

[iiXii]

Ok thank you very much.
the size between stud looks 65.8 65.9 mm

[iiXii]

at least exhaust hole is 35 mm

[Walt Fricke]

Roman numerals: I think you may have posted a picture other than what you intended.

To avoid that, I usually use the "preview" feature to see if the picture I stored with a title of just a bunch of numbers is the one I really wanted to post. Caught one of those just a day or so ago.

[iiXii]

thank's for your advice.
the piece is what I made with this measurment. It's a guide to drill hold stud