Corvette C5 Z06 Caliper
Thread Starter
Joined: Apr 2002
Posts: 1,136
Likes: 1
From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
Corvette C5 Z06 Caliper
I'm in the process of gathering parts to do the C5 upgrade later in the winter. The calipers will be getting powder coating when my abutment bracket comes from www.GMPARTSDIRECT.com.
I bought the C5 calipers for the front and notice that the pistons has burns from what look like the disc pad had worn all the way down and was transfering heat to the pistons. The Vette shop that sold me the calipers rebuilt them (new rubber seals), but i was wondering about the pistons. At what point do you say its time to replace the pistons and what your opinion on stainless pistons?
Here is a photo:
I bought the C5 calipers for the front and notice that the pistons has burns from what look like the disc pad had worn all the way down and was transfering heat to the pistons. The Vette shop that sold me the calipers rebuilt them (new rubber seals), but i was wondering about the pistons. At what point do you say its time to replace the pistons and what your opinion on stainless pistons?
Here is a photo:
Last edited by DTL504; Oct 10, 2005 at 08:01 AM.
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
As long as the pistons and the bores are smooth throw them back in. You could always just but new pistons and install them. Take a Scotch brite pad to them with some Fantastic or Simple Green and see how they turn out. As for stainless, they are supposed to be better than aluminum since they will transfer less heat than the AL pistons do. Depending on how hard you will push your car you might want to look into it.
Ed
Ed
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Only benefit I know of is heat resistance..otherwise none.
Ed
Ed
Thread Starter
Joined: Apr 2002
Posts: 1,136
Likes: 1
From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
Ed
I sent you a PM, with a little wheeling and dealing proposal....
I sent you a PM, with a little wheeling and dealing proposal....
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Thread Starter
Joined: Apr 2002
Posts: 1,136
Likes: 1
From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
Another PM from me:
David
David
Thread Starter
Joined: Apr 2002
Posts: 1,136
Likes: 1
From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
What a difference a little elbow grease make in cleaning the pistons:
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Yep, they usually clean up pretty well as most of the stuff is brake dust and bulidup on the upper part of the pistons close to the pad. I use Simple Green and a Scotch Brite pad. I have only had to replace 4 pistons or so in the 50+ calipers I've rebuilt over the last year. Internally they're usually good also.
I'll get back to you on the PM..
Ed
I'll get back to you on the PM..
Ed
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