Can I use a power brake mastercylinder on a manual drum car???

[Blakcharger440]

Can I use a Power brake mastercylinder on a 70 B-body bigblock car with manual drum brakes???

What are my options as I want to replace the manual master cylinder but none of the parts houses carry the manual one.

The car has front and rear drums that are manual.

What can I use?

[Just 6T9 CHGR]

I would advise against it for the simple fact that most disc brake masters have a built in residual psi valve built in for the front disc brakes.

Have you tried www.rockauto.com or www.napaonline.com ?  I'm pretty sure the manual drum master is one of the easiest to find.....

[Blakcharger440]

I would advise against it for the simple fact that most disc brake masters have a built in residual psi valve built in for the front disc brakes.

Have you tried www.rockauto.com or www.napaonline.com ?  I'm pretty sure the manual drum master is one of the easiest to find.....

Well...the local Autozone does have a manual drum master...but it looks nothing like the original and i just cant bring myself to install such a ugly looking part on my car.

[Just 6T9 CHGR]

I think I might have read your question wrong.

The "correct" master for either power or manual drum brakes would be the same.

A disc brake master is the one that is different.  A disc brake master bowls are 2 different sizes  (larger for the disc brakes in front) where a drum brake master will have 2 of the same size bowls.

[Blakcharger440]

I think I might have read your question wrong.

The "correct" master for either power or manual drum brakes would be the same.

A disc brake master is the one that is different.  A disc brake master bowls are 2 different sizes  (larger for the disc brakes in front) where a drum brake master will have 2 of the same size bowls.

Here is the one that is in my car right now. I am fairly sure it is the original unit.

[Just 6T9 CHGR]

That looks like a later model service replacement bail style.  IIRC yours should be the bolt down style like I had

If you want the style you already have NAPA has them new....

http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=470&LineCode=SS&PartNumber=4736221&Description=Brake+Master+Cylinder+-+New

[Musicman]

I would advise against it for the simple fact that most disc brake masters have a built in residual psi valve built in for the front disc brakes.

Residual valves are for the rear drum brakes not the front brakes.   

[Blakcharger440]

That looks like a later model service replacement bail style.  IIRC yours should be the bolt down style like I had

If you want the style you already have NAPA has them new....

http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=470&LineCode=SS&PartNumber=4736221&Description=Brake+Master+Cylinder+-+New

I thought in 1970 they all went to a bail style??? I will see if I can find a NAPA here in town to try and get one.
I have not seen that bolt on style anywhere for sale either.

[Blakcharger440]

That looks like a later model service replacement bail style.  IIRC yours should be the bolt down style like I had

If you want the style you already have NAPA has them new....

http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=470&LineCode=SS&PartNumber=4736221&Description=Brake+Master+Cylinder+-+New

Hey! I just found one like you have at OReilly's Auto!!!  I am gonna go put it on! 

[Just 6T9 CHGR]

I would advise against it for the simple fact that most disc brake masters have a built in residual psi valve built in for the front disc brakes.

Residual valves are for the rear drum brakes not the front brakes.   

Damn I meant to say that 

Thanks

Good news on the find as well blak