Purchased a 72 convertible that had extensive work done by the prior owner who is now deceased. While I have yet to figure out exactly which VB&P kit was installed because it was most likely in the 2005-2008 timeframe, it has the following VB&P parts:
- Front adjustable mono leaf suspension with square tubular upper & lower A-arms
- Rear adjustable mono leaf suspension with dual mount
- Offset trailing arms
- Adjustable strut rods
- Front & rear sway bars (front one appears to be from VB&P, does not appear to be stock)
- Bilstein shocks
- Stainless flexible brake lines (not rubber) on front and rear with a yellow tag that says "GOODRIDGE"

The caliper pistons are o-ring style, the left rear is leaking, and I want to buy the correct seals the first time vs. playing the guessing game.

The primary question I need to know is whether these are VB&P calipers. They may have been part of the VB&P kit.
If these are VB&P calipers, will an o-ring seal kit for a standard caliper work?
Or did VB&P have a unique size piston & o-ring?

Included is a picture of the caliper, hopefully this will help someone confirm it's identity.
The outer half is stamped "402 P" and the inner half is stamped "403 P". None of my calipers have the Delco Moraine logo. The right front caliper has what appears to be a serial number stamped in it (very difficult to read due to the red paint on them).

Thanks for any help you can provide.

 

They look like the over the counter clones.

 

Found it!
After cleaning the back half of this rear caliper more, I can see the encircled "Vb" logo (Vette Brakes) stamped on it as well as a number.
So, now I have a different question.

Will standard o-ring seals and dust boots (e.g. from third parties or third party caliper conversion kits) fit these caliper pistons & caliper bores?
Hoping someone else has VB&P calipers and can confirm.

Here are NOS VB&P kits I found on ebay.
Front: https://www.ebay.com/itm/18398778654...gAAOSwJeVdlpkT
Rear: https://www.ebay.com/itm/18398778905....c101113.m2108

 

The front seal size is 1 and 7/8" and I don't think that VB&P had unique pistons but to be sure and order a kit that includes new pistons.
The rear seal size is 1 and 3/8"

 

Thanks Peterbuilt, I did find kits that include new pistons and will be going that route if nobody can confirm whether the VB&P are standard. I'll also check mine against the measurements you provided.

 

What do the bores look like in the calipers? They should be as smooth as a stainless/chrome bore. This will decide if the calipers will work properly more than anything.

 

These are VB&P calipers with stainless sleeves, bores look great with no pitting or damage. Some of the existing o-rings are out of tolerance, a very small amount of fluid is getting past two of the piston o-ring seals and also past the dust boots, leak was barely detectable. After owning 5 C3s, I can rebuild these calipers with my eyes closed, LOL.