Cylinder size code question

[ouo1006]

Is it permissible to mix in a number 3 Size Code cylinder in an engine were all the other cylinders are Size Code 1?

[Henry Schmidt]

Originally posted by ouo1006
Is it permissible to mix in a number 3 Size Code cylinder in an engine were all the other cylinders are Size Code 1?

As long as the piston matches the cylinder it's OK.
Perfect? no, but you will not notice a performance difference.

It is not advised to run a 1 piston in a 3 cylinder.

[ouo1006]

Thanks Henry. Yes I will be running a size 3 piston in the size 3 cylinder.