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Best Master Cylinder

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Old 10-30-2012, 07:47 PM
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Car: 1991 RS/B4C clone
Engine: 355 TPI
Transmission: Probuilt Street/Strip 700r4
Axle/Gears: 7.625 axle with 3.23 gears/TrueTrac
Best Master Cylinder

Anyone have experience with a good aftermarket MC? The "new" one I just purchased from NAPA leaks out of the reservoir grommets AND the cap. The plastic on the reservoir seems to be a lot thinner than OEM, and it flexes, and much more-so when heated by the engine bay. I'm going to go pick up a replacement tomorrow but I feel as if the same thing will happen.
Old 11-02-2012, 03:52 AM
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Join Date: Jan 2010
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Car: 1991 RS/B4C clone
Engine: 355 TPI
Transmission: Probuilt Street/Strip 700r4
Axle/Gears: 7.625 axle with 3.23 gears/TrueTrac
Re: Best Master Cylinder

Well, I ended up buying a ACDelco reman. I gutted it, took it's reservoir and used it to rebuild my stock aluminum master cylinder. For some reason all the delco remans are iron, and I don't like that, plus it does't appear stock for the year. At any rate, I bench bled my rebuild, installed it on the car and pressure bled it, and oh man, it's a huge difference. With these 1LE brakes it's seriously like throwing a boat anchor out the back window!
Old 11-29-2012, 09:40 PM
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Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: Best Master Cylinder

You can bolt in a fourth gen master cylinder. They are smaller which gives more clearance for things like adjustable strut mounts. They look better as well.
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