Master Cylinder Conversion
#1
Master Cylinder Conversion
I have a 1966 Cutlass with a single master cylinder and I would like to convert it to a dual reservoir. Is there a parts supplier that sells a kit to make the changeover or at least a list of the parts needed to do the job?
#2
If you want to convert to a dual chamber master cylinder I suggest getting an OE one off of a later model Cutlass. I'm not sure what parts you would need though. Master cylinder, vacuum booster and proportioning valve at the least.
#3
I like to use the 1962-66 Cadillac master cylinder, which is dual circuit but configured for the long pushrod on these cars. It bolts directly to the original booster with no mods required. RAYBESTOS MC36373, about $71 at RockAuto.
#8
Unless you are changing the power booster you can't use a 67 master cylinder on a 66. Go back and read post #3.
#10
#13
It's not quite that easy. The pushrod between the booster and M/C is longer on the single circuit master cylinders and won't work if you try to simply bolt a 1967 M/C to a 1966 booster. Yes, you can swap the combined 1967 booster and M/C onto a 66 and avoid this problem, but again be aware that the 1964-66 booster is 9" and the 67-up booster is 11". This is why 1967 442s used a single notched valve cover on the driver's side. It's not an issue on a small block car. I'll also add that there is no proportioning valve used on the four wheel drum cars, just a distribution block that really only serves to house the differential pressure switch that illuminated the BRAKE light if you have a leak.
I like to use the 1962-66 Cadillac master cylinder, which is dual circuit but configured for the long pushrod on these cars. It bolts directly to the original booster with no mods required. RAYBESTOS MC36373, about $71 at RockAuto.
I like to use the 1962-66 Cadillac master cylinder, which is dual circuit but configured for the long pushrod on these cars. It bolts directly to the original booster with no mods required. RAYBESTOS MC36373, about $71 at RockAuto.
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