JimMueller

iTrader: (9)

Doug Rippie sells stainless steel pistons for the C5/C6 and C6Z calipers. The stock pieces are apparently aluminum. Can anyone confirm what type of piston the CTS-V calipers have? If not stainless steel, would either of these parts be compatible with the CTS-V calipers?

C5/C6 http://dougrippie.com/?p=425
C6Z http://dougrippie.com/?p=414

raven154

iTrader: (14)

I believe Brembo does use SS. The Z06 doesn't use Brembo calipers.

killernoodle

Aluminum. I just did my brakes yesterday and when I was prying the pistons back, I noticed I dinged one of them.

raven154

iTrader: (14)

That's interesting. I've got a junk rear caliper that I can tear apart. I've been wrong before though.

Gus_Mahn

iTrader: (1)

I'd say the bores are bore important than the pistons. Is there a liner in there or does the seal ride on an aluminum bore?

JNR_Design

iTrader: (3)

If you were to replace aluminum with stainless, just keep in mind the different expansion rates of the materials, when you machine them, etc...I imagine a good shop will do this, but if you were to do this yourself, etc...doubt this is a big consideration, but maybe it takes a little more hydraulic 'power' to move SS vs. alum. Probably not, though on such a small movement.

raven154

iTrader: (14)

Yeah the backs are aluminum and they also look hard chrome plated. Most likely just for a little more durability.

Gus_Mahn

iTrader: (1)

2-stroke dirtbike cylinders are chrome over aluminum, and it's very durable.