I would normally agree. There is no putting this car back to stock. Not the original motor, tranny, interior etc.

Pechetr wrote:

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I would normally agree. There is no putting this car back to stock. Not the original motor, tranny, interior etc.

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 In that case, anything goes! : ) Thanks for explaining.

My opinion is the following Roger.

Value for these old cars is determined in three ways. Non-restored numbers matching, restored numbers matching, non number matching. There seems to be the highest value for numbers matching non restored or restored, but a second big market is also emerging...That market is what many call "resto-mod". This is a restored vehicle in appearance, but with some modern conveniences. These cars are now going for just as much and in some cases more than numbers matching restorations. If your car could have been originally optioned with discs then I don't think you are straying too far. Not to mention if you keep your original parts as Pontiacanada eluded to, then you can always put things back if you need to. If you already have a non numbers matching engine, I say go for it! Just my 2 cents.

Looks like the Bendix master cylinder, the kind used on the early 4-piston disk brakes. Delco was used on drum brake cars and can be used on later single-piston disk brakes (use a proportioning valve though).