I don't think a SS master cylinder is the route you would need to go.

Like I stated before, you will still have a discs/front, drums/rear setup once you complete the changeover.
The SS has the 4 wheel disc setup, hence the need for a different master cylinder( if there actually is a difference cause I'm not positive on this)

 

I hope you are right..............my mechanic is just paranoid since HE is the one messing with the brake system..........and we can't get any technical information about internal porting of the master cylinder, or the size of the pistons in the Brembo caliper verses the stock caliper, etc..

we think that we will be able to "feel" it if anything is not right between front and rear braking .... he is afraid that the rears will kick in before the fronts, or that the rears will be forced to try and do all of the work....

I wish that one of the people that I've read about here actually doing this swap would chime in on this thread.......

 

I believe you're trying to "think" too much into this.
I have factory Brembos on my SS. It's has the same MC as the non Brembo SS's.

 

Been on the road for a week and loving the Brembos. There is still a small problem with something in the front end, because at certain times I still get a little wheel shake while braking. I haven't been able to reproduce it consistently, but when I can do it for my mechanic, he says that he'll figure it out and eliminate it.

Bought new Wheels with tires mounted from TireRack and had them delivered to the garage where the car was.

Rims: 18" x 6 with 42mm backspacing
Tires: 225/45 R18

I had picked out a set of Michelins, but they were at a different location than the wheels, and the tech from TireRack recommended the Continentals for the same price.

Thanks for everyone's help

 

About that vibration - make sure your lug nuts are torqued EQUALLY. With lighter weight wheels, torque variances can have that sort of effect. Glad to hear it's gone mostly well, though.

 

i wish that i could tell u for 100% that they are different.

but when i upgraded the brakes on my 85 MCSS i did swap the master cylinder to one from an 88 Caprice station wagon with the towing option, this gives u a larger plunger valve, also got the rear shoes from one with the inner spring system. as well i swapped out the slave cylinders out back to an 86 S-10. they also have larger surface area for the fluid and gives more stopping power. they were all a direct swap without any modification. the best thing is that it cost the same as if i did a stock replacement!!

if you do not switch the master, the worse that would probably happen is that u dont use the brake system to its max capability. go to a parts store and look yourself. see if the valves diameter is different. it is really noticeable if it is. you do not need to be a mechanic to see this. trust me i did this. also compare the part to make sure that the outside and hookup location is the same. see if the parts person will let u take the SS one to ur car to compare it to ur own. at least the hookup points and the outer portion. the pic on websites may not correspond to the part and u cant really see the valve to compare.

just make sure u bleed it all correctly at the end. i got a phoenix system and reverse bled them and was done in about 15minutes. best $70 that i spent for brakes. they say it works on ABS systems as well.

GOOD LUCK!!