I kinda wonder about the single piston vs four piston comparison.
I think the higher rigidity of the four piston caliper theoretically makes the brakes slightly more controllable, maybe a better feel for the driver.
But in reality the factory single piston or two piston late vette calipers SEEM to be working great for everyone.
There must be some reason all racing brakes use four piston calipers though. Maybe they are just easier to make or lighter.
The Vette Brakes repro calipers have an O ring system but I don't know for sure if the O ring is in the piston or bore.
In the bore is better. The vette seal slides out as the pads wear and when you put new pads in, the pistons get pushed back into an often corroded area and the seals leak.
SS sleeves are supposed to work, but I have a friend who has those and he still had problems! I don't know why.
Baer has a good kit with the Alcon four piston calipers on it.
Willwood has kits but the rotors are too small in my opinion.
I think a rotor the size of the old vettes is a good place to start.
The JL8 rotor has more negative offset and makes more room for a caliper than the later vette rotors do.
I am going to use custom aluminum hats with 12.19 rotors and some aftermarket four piston calipers on my 67.
Check my web page for First Gen Camaro suspension info:
David's Motorsports page
First Gen Suspension Page
67 RS 327 Origonal owner. 69 Camaro Vintage Racer, 65 Lola T-70 Chev SB Can-Am Vintage Racer
[This message has been edited by davidpozzi (edited 03-13-2002).]