3.2 cylinders vs 3.0 sc cylinders?

[crashmy911]

Why does my engine builder want me to use 3.2 cylinders in my 3.0 engine. They are both 95mm just want to know why?

[Flat6pac]

Didn’t you just ask him...
The difference is the sealing systems, head gaskets
The 3.0 uses an aluminum seal ring to the head.
The 3.2 uses a tapered edge and more torque to seal the head.
A 3.2 short stroke cylinders need to be opened to 98mm which leaves little support for the 3.0 head gasket, the 3.2 cylinder is preferred for the application.
I’d still ask him

Bruce

[OSC911]

Originally Posted by Flat6pac

A 3.2 short stroke cylinders need to be opened to 98mm which leaves little support for the 3.0 head gasket, the 3.2 cylinder is preferred for the application.
I’d still ask him

Bruce

Does that mean that to go to 3.2 you are better off running with the 3.2 cylinders? Do you have to run the 3.2 heads as well to match.

[Flat6pac]

The 3.2 cylinders is the preferred option, because of the sealing system
The height of the cylinders are the same and the SC
heads are compatible with the carrera cylinders.
Bruce

[OSC911]

Thanks for the info Bruce. I’m planning a 3.2 from my 3.0 so I need all the help I can get.
Cheers

[Flat6pac]

When you’re looking for cylinders to open to 98mm the least expensive tend to be the alucil by kolbien/Schmidt.
The Mahle nikisil are glaze breakable and many time in spec for reuse or resale as usable.
The K/S sets, considered not reringable and not having the hard plating of nikisil are considered unusable to rebuild with.
The alucil cylinders do make excellent 98 mm cores for nikisil replaying.
Bruce

[crashmy911]

3.2 k/s set anyone?