I have a 69 Cutlass S Holiday Coupe that I got last May. I have several things that I want to do to it.

 

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Welcome!

 

Welcome what are your plans.

 

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I'm going to do a front power disc brake conversion to start. I'm not looking to do a complete restoration just upgrading things. This is going to be a driver

 

Are you going to find OE parts for the front disc conversion? Aftermarket kits will generally leave you with worse brakes than the OE 4 wheel drum brakes.

 

Do you really think that aftermarket power disc brakes are worse than manual drum brakes?

 

Can anyone suggest what aftermarket power disc brake conversion kits to avoid and why?

 

Why perform the conversion? Do you have a conception front-end disc/drum brakes offer greater breaking power? Are your current front end wheel hub caliper assemblies OEM? There is nothing wrong w/ OEM drum brakes all the way around, IMO you'll experience minimal gains.

Perform a key word search such as "brake conversion" (quotes included). You'll find a plethora of comments regarding brake conversion.

Here's a link to such a search. Lots of good information to be gleaned which can assist you in forming a decision:

https://classicoldsmobile.com/forums...archid=7137486

 

Ok thanks. I'm changing it because I don't like the manual drum brakes on the front. And I am going to upgrade the wheels and tires.

 

https://classicoldsmobile.com/forums...k-brakes-6873/

 

Can you be more specific? What don't you like about them?

 

Do you know what wheels you want to use? Make sure any disc brake kit you get (OE or aftermarket) doesn't prevent you from using the wheels you want.

 

I converted my '69 Cutlass S from front drum to disc about 3 years ago. I used a kit from the Right Stuff. The drums were manual and I left the discs manual. Their kit was complete and very good quality. The only thing I had a problem with was the proportioning valve. I believe this was a generic valve that almost all of the aftermarket brake suppliers use. It was pure crap. I went through several until I got one that worked. They were good about it and kept supplying me with replacements until I got one that worked.
For me, the discs are simpler to work on and are more reliable if you happen to have a few hard stops in a short period of time (better heat dissipation). I have no plans to autocross the car but if something like this is in your plan, forget drums. Conversion is a no-brainer.
I agree that for a single panic stop and the majority of the type of driving done with these old cars, the drums are capable. It's a personal choice. I wouldn't expect a night and day difference if your current drum brakes have been maintained well. However, if you want to do the conversion, there are several quality options available.
One thing I'd recommend you avoid is a rear disc conversion. I'm not sure why some guys feel like this is any kind of upgrade on these cars. Seems like that's just an eye candy decision.

 

Honestly I don't know if the brakes are OEM. The car has 101000 miles on it and I have only driven it a few times last year. I'm not comfortable with the brakes and I have several friends that have all done conversions to their own cars and they love it.

 

As far as wheels, I'm thinking about going to staggered 17 inch rims.

 

THIS.

Concise and correct on all counts.