will these calipers work on my 914? Options

[rfuerst911sc]

I have 1972 911 Boge struts on the front of my 914 and I am still trying to figure out what brakes I will use front and rear. I know many people think the 1974 and later 3.5 inch struts are better but I have these and I'm gonna use them. My question is can you run rear Carrera ( 1984-1989 ) calipers on the front? If I understand this correctly this would give me a 24mm front rotor with caliper pistons that would work well with M calipers in the rear with a adjustable proportioning valve, anyone running this setup? I am going to install a 19mm master cylinder. This will be a street/autocross machine with occasional DE's thrown in. Oh yea I'll be throwing in a 911 engine too!! Any thoughts on this brake setup?

[rfuerst911sc]

So the 914 rear caliper has 33mm pistons. The 911 calipers have 38mm pistons. The Ferrari calipers have 38mm is the advantage to the Ferrari calipers that you retain emergency brake? What model Ferrari calipers do you look for? Or is it easier/cheaper to adapt 911 emergency brake? Or how about hydraulic E brake?

[davep]

So the 914 rear caliper has 33mm pistons. The 911 calipers have 38mm pistons. The Ferrari calipers have 38mm is the advantage to the Ferrari calipers that you retain emergency brake? What model Ferrari calipers do you look for? Or is it easier/cheaper to adapt 911 emergency brake? Or how about hydraulic E brake?

The 914 FOUR has 33mm pistons in the rear calipers.
The 914 SIX has 38mm pistons in the rear calipers.
The Ferrari 308 has 38mm pistons in the rear calipers.
All three have the same parking brake arrangement.
The Ferrari 308 has the bleed nipple on the 'bottom' when used on a 914, so the caliper has to be modified for a second bleed nipple. The Ferrari 308 caliper is already set up with spacers for a vented rotor.
The 914 SIX caliper can be spaced for vented rotors with parts from the 911 caliper.
The Ferrari 308 caliper may or may not be cheaper than a modified 914 SIX caliper.
They are off of a Ferrari, what do you think?

The 914/6 GT used vented rotors with a modified 914/6 caliper up to about 250HP. The vented rotors on the 914/6 GT are similar to the 911 vented rear rotor, but do not have the drum for a parking brake (and cannot be modified to do so), they are slightly smaller in diameter (to fit the caliper and pads of the 914/6), and they have a different offset (so no hub spacer is required to center the rotor in the caliper)

The 914/6 GT used the front calipers off of the 908. These calipers are very similar to the 911 'S' aluminum caliper with a few modifications for racing use.