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Old 09-19-2007, 07:52 AM
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71 Chevelle disc brake conversion???

I am wanting to put front disc brakes on my wifes 71 big block Chevelle. I am looking for any info on what to use and what to stay away from ect....
What works for you guys?

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Old 09-19-2007, 01:48 PM
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http://cgi.ebay.com/ebaymotors/64-72...spagenameZWDVW

Ive used a few from here. Very complete and very good quality pieces.
Bob
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Old 09-19-2007, 08:19 PM
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Thanks for the link!!!
That looks like exactly what I am after
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Old 09-21-2007, 07:55 AM
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You do know that ANY GM "A" body disc brake will work from 1968 till 1972. And even more than that but I can't remember exactly what. So ANY Buick Skylark or Sportwagon, ANY Olds Cutless (that is what I have on my 65 Gran Sport, 72 Olds Cutless), ANY Pontiac Tempast, GTO or what ever.

I know they aren't easy to find anymore but they are still out there. Take the master cylinder, prop valve, spindles and all.

Brian
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Old 09-21-2007, 10:33 AM
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Quote:
Originally Posted by MARTINSR
You do know that ANY GM "A" body disc brake will work from 1968 till 1972. And even more than that but I can't remember exactly what. So ANY Buick Skylark or Sportwagon, ANY Olds Cutless (that is what I have on my 65 Gran Sport, 72 Olds Cutless), ANY Pontiac Tempast, GTO or what ever.

I know they aren't easy to find anymore but they are still out there. Take the master cylinder, prop valve, spindles and all.

Brian

Yes I was aware of that but thank you for the heads up I am looking to go with new stuff and I need a small booster because I am dealing with a 454 in a car that was origanally a small block. There does not appear to be much room for a booster in there
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Old 09-21-2007, 01:34 PM
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I'm doing the same on a 66 El Camino, using the brakes from a 72 Monte Carlo (the other GM A body). I got everything, Master Cylinder, booster, spindles, rotors, calipers, brake lines from the master cylinder to the proportioning valve and from the proportioning valve to both front calipers (except the flex line) and the brake line back to the rear brakes. The proportioning valve is different for a disc brake car and in a slightly different location (this helps when doing a BBC motor). There's plenty of good information at chevelles.com. New is good, but I got everything for $300 vs about $800 for a basic non power disc brake conversion kit from ssbrakes. All I need is a few hours of prep, some new wheel bearings, (not necessary, but while I'm doing this) and a couple of new flex lines from the local parts store. May have to replace the caliper seals and turn the rotors too. Hope this helps.
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Old 09-21-2007, 06:43 PM
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Quote:
Originally Posted by Red Rocket racing
Yes I was aware of that but thank you for the heads up I am looking to go with new stuff and I need a small booster because I am dealing with a 454 in a car that was origanally a small block. There does not appear to be much room for a booster in there
They did have 396s and 454s in A bodies you know! Sure there's room.

Brian
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Old 09-21-2007, 07:44 PM
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The disc brakes on my 66 Chevelle are from a 71 Cutlass. I love them,as opposed to the drum brakes. However, you need to price out buying a disc swap setup from a used car, and replacing most of it anyway, with a new kit. At the time, I bought my complete system for 200.00. Although I know of people with stock changover systems, I don't know any for sale CHEAP.
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Old 09-22-2007, 07:39 AM
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Quote:
Originally Posted by MARTINSR
They did have 396s and 454s in A bodies you know! Sure there's room.

Brian

I do realize it is possible, however I am not sure what the maximum size that the booster can be and still clear the head. I am sure a 12 inch booster will not fit but I do not know how small I have to go and still have room to install.
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Old 09-22-2007, 08:51 AM
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What I am saying is a STOCK booster IS going to work. I have only built Buicks so I certainly don't know the ins and outs of a Chevelle. But I don't believe there was different boosters for big and small block cars.

Post your question over at The Team Chevelle site start by reading this thread on spindles and you can see there is a lot of info there .. (click here) Team Chevelle has the best forum on Chevelle related discussion on the net, PERIOD.

Brian
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Old 09-22-2007, 08:40 PM
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Hopefully this info will help you...........I spent the morning getting the parking brake in my 66 Chevelle funtional, and install new kick panel speakers. Then my friend came over to work on 2 of his cars we towed over here last Sunday. The rusted to death 70 Cutlass SX has a 455, TH 400, and a 12 bolt rear. These will go in his 71 Cutlass with the blown 350 small block. All three of these cars has exactly the same vacuum booster. Granted, my Chevelle has and updated (71) disc brake changeover, but the are all the same.
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Old 09-22-2007, 10:48 PM
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The rotors, Calipers and pads and Mastercylinder should be available through just about any parts house you deal with for a somewhat reasonable cost.

Check www.partsamerica.com or www.napaonline.com to get ideas on the prices. You should be able to buy a booster from those sources also but expect to pay a core charge. You will have to come up with the caliper bracket and dust shield but those shouldn't be that hard to find. you also will have to buy the proper proportioning valve and correct brake lines for the disk brake mc and hoses to go to the calipers.

This is a swap that has been done hundreds if not thousands of times and is pretty simple.

You may be able to save some money going with the "kit" from one of the vendors over buying the pieces over the counter at the parts house. I would recommend pricing it out through several sources.

I believe what I and the others here are trying to say is that the majority of the parts for this conversion are not "rare" nor are they hard to get and you should not expect to have to pay "collector car parts" prices for them.

Last edited by Chopt 48; 09-22-2007 at 10:56 PM.
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Old 09-23-2007, 06:59 AM
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http://cgi.ebay.com/ebaymotors/64-72...spagenameZWDVW

These kits are available with stock or smaller boosters. Call them.
Bob
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Old 09-23-2007, 10:11 AM
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When you add up all the pieces that looks like the way to go.
http://cgi.ebay.com/ebaymotors/64-72...1832QQtcZphoto

Has the booster and all the trinkets with it.
They look to have several different setups depending upon what you want to go with.
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Old 09-23-2007, 10:49 AM
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Thank you to alll of you for the replies!!!

My biggest concern was getting a booster that was too large for my application and it sounds like I do not have much to worry about. The Ebay complete kit posted above is what I am going to buy. Thanks again for all the info
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