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1967 Master Cylinder on a 1966

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Old 02-20-2009, 03:40 PM
  #21  
66BlkBB
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Originally Posted by JohnZ
A "correct" '67 master cylinder has the "deep" hole in the rear piston, but parts-store rebuilts may not, as the '67 Corvette application is the ONLY one where both manual and power brakes used the same identical master with the "deep" hole (normally only seen on manual cylinders, to keep the pedal pushrod from falling out).

Booster-to-master cylinder pushrods are all the same diameter - just different length.

No need to have the engine running to bleed power brakes - the engine should be shut off when bleeding.



Thanks John. I may have something wrong with the booster then. It could be that I am not getting enough vacuum to operate it. I can't seem to feel it kick in when I step on the brakes. Will check that before I re-install the 66 M/C.
Old 02-20-2009, 04:37 PM
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Lot of good stuff shared in this thread

For safeties sake this should be my next mod and get rid of the possibility of that single master cylinder ever failing in my 66.

There sure are some big differences between prices of some places versus that of others

Doug
Old 06-02-2017, 05:39 PM
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bob-vette
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Default 1967 master cylinder

When adding a power brake booster to a small block 1967 Vette with standard brakes, can I reuse the standard dual master cylinder or does it have to be replaced with a "power brake" dual master cylinder (if there is such a thing)? Also, does it need to have a longer rod?
Thanks, Bob
Old 06-02-2017, 05:42 PM
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bob-vette
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Default 1967 master cylinder

Hi JOHNZ:
When adding a power brake booster to a small block 1967 Vette with standard brakes, can I reuse the standard dual master cylinder or does it have to be replaced with a "power brake" dual master cylinder (if there is such a thing)? Also, does it need to have a longer rod?
Thanks for any help, Bob
Old 06-02-2017, 06:30 PM
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leif.anderson93
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Originally Posted by bob-vette
Hi JOHNZ:
When adding a power brake booster to a small block 1967 Vette with standard brakes, can I reuse the standard dual master cylinder or does it have to be replaced with a "power brake" dual master cylinder (if there is such a thing)? Also, does it need to have a longer rod?
Thanks for any help, Bob
I'm sure you're aware this is an 8 year old thread. But, go back and read John's post #6 in this thread...he answers your question there



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