1964 Master Cylinder

[Dan A.]

I have what I thought to be a '64 non-power master cylinder as it does not have a bleeder screw. It has the 5464264 casting # on the bottom and the 7/8 cast in the top. It differs from the Judging Guide in that the date is not alpha numeric but Julian and the line fitting enters on the bottom rather than the outboard side. This master does have the Delco and Central Foundry logos on the bottom as well.

As there are several boses which are not drilled and taped it seems reasonable to assume this casting was used for several different applications.

My question is, what was the original application for this master cylinder?

Dan

[Gene M.]

Re: 1964 Master Cylinder

Hi Dan,
I'm not up on memorizing casting numbers but I can tell you this. The 64 drum brake master cylinder (also 65 disc delete) same part was also used on other Chevys. I would assume there were different assemblies with bore size differences. Maybe not. Yes, the bleeder screw was not taped and omitted without power brakes. I have no idea why.

My 65 does have a DELCO name but no date. That I remember. Many don't have dates. Sorry I just came in the house so I'm not posting the cast number.