Bore & Stroke of GM Clutch master

[JamesJ]

With all the talk about bore and stroke, does anyone know what the bore and stroke is on the factory GM unit that everyone is using?

[vannatta20]

I would like to know this as well..

[JamesJ]

4th gen F-body MC The LT1 style has a 7/8" bore and the LS1 style is 3/4" bore. Stroke is about 1"

The info I got....