5 lug front disk & caliper ID needed - will have to rebuild or RR disks eventually so any idea's whet these are?

Have 2 sets, this is the one on my car: Alum calipers

S calipers big money these days

And here's the CI setup

They look like early S-Calipers and the smaller ones M or A Calipers I am most likely wrong but I am hoping Eric will weigh in and give you the information that you are looking for.

Vysoc

Im thinking I may use this CastIron setup on my 1967 912 to convert to vented disks, the car may be worth more as a 912 converted to a 911 Outlaw for now. What I'm trying to glean is that are vented disks a bolt onto 912 hubs and change calipers? Bummed I got rid of a complete 912 setup a couple years ago to a friend CHEAP and he passed along to his pal etc.

I'm guessing that the alum calipers are the S ones?

Bigger money to rebuild.

Aluminum calipers are "S" and the cast ones are "A" calipers. Both used vented rotors on 3.5" spaced struts.

So any year vented disks? Just plan on 1975 911s disk & same for pads n bearings n seals? Thanks for all the help everyone

Looks like a later 911S Caliper to me, 1972 and later. Still neat aluminum alloy.

I have a set off a 1968 called early s calipers and it is slightly different. That being Early S


The side bulge is not as elongated and is more centered.


Here are pictures from PMB Performance

Click to view attachment

This is the Late S


And

Click to view attachment

This is the Early S.

S caliper rebuilds usually mean new pistons. So you're looking at about double the cost of a typical caliper rebuild. Nothing wrong if your prepared for it. Stings a bit if you think it's just a Porsche caliper in aluminum.