Early 911/912 "M" calipers, direct bolt on to a '70 914? Options

[tradisrad]

I am looking for an upgrade to my front stock calipers and the "M" caliper for solid rotors seems to be a good choice. The car has a 19mm master cylinder and the braking could be better and instead of replacing the master cylinder with a 17mm I thought I'd upgrade the front calipers.

From what I can tell early 911/912 calipers for solid rotors will be a direct bolt on to the early 914 strut. I also think they use the same brake pad.

Has any one done this or can someone confirm that they will be a direct bolt on and is the pad size the same?
thanks
-Rob

[ArtechnikA]

I am looking for an upgrade to my front stock calipers and the "M" caliper for solid rotors seems to be a good choice. The car has a 19mm master cylinder and the braking could be better and instead of replacing the master cylinder with a 17mm I thought I'd upgrade the front calipers.

MC won't give you more or less braking, unless you're in track service and you run out of volume due to lots of heat. The 19mm will give you a stiffer pedal, the 17 may let you modulate better ('more feel').

IMO - if you want better braking, just get a better class of pad. Porterfield R4S are the hot setup. A solid-rotor 911/912 caliper will be OLD, and cast iron. You're better off with what you've got - just use a decent pad. I had an early ('65) 912 and I don't think its brakes were even a little better than a 914's...

For a real update, Aluminum vented-rotor 4-bolt 3" calipers from our current classifieds.