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  #1 (permalink)  
Old 02-16-2006, 04:23 PM
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Swap Drum to Disk Brake

I everybody,

I have a chevy nova ss 74 with 4 drum disk brake, I really want to put 2 disk setup in the front of my car.

Somebody here near from me, have a Setup from à Chevrolet chevelle 71. He have the spindles, rotor, backing plate. Does this setup will fit for my application, what parts I need to complete the disk setup to make possible this conversion.

Does I absolutly need power booster, does a disk brake setup without booster brake enough, I mean,If I put disk brake will it be better than the drum brake I already have?? Will I feel the difference or I'm oblige to put a booster...I have tall valve cover with a big block, I dont want to mist space to remove valve cover...

From what car I can take the disk brake setup (can you give me all the car and year if is possible).

I need more brake, 575hp and 4 wheels drum, it's not braking enough

Thanks in advance, Stéphane

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Last edited by Ratoflic; 02-16-2006 at 04:28 PM. Reason: add information
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Old 02-16-2006, 09:11 PM
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Disc conversion

You will need a different master cylinder and I think with all that HP, you should go with power brakes. They will help stop the car easier than manual. You should be able to mount the vacumn actuator with no problem when you change to the proper master cylinder.
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Old 02-17-2006, 12:23 AM
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Your Chevelle spindles will work, but you need to transfer the Nova steering arms to the disc setup. Chevelle steering arms will cause bump-steer problems if used on a Nova.

A power booster is not absolutely necessary, and a 575hp engine might not make enough vacuum to operate one anyway. Disc brakes just need more pedal pressure than drums. '70 Camaros and '71 Chevy trucks came standard with non-power disc brakes, and my '69 Nova got manual discs from a '67 Camaro, and it was a MAJOR improvement over the drum setup.

You will need to use a disc-brake proportioning valve.

If you're still using the stock 14" wheels, they may not clear the calipers. You can use aftermarket wheels, or stock wheels from a '75-up car.
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Old 02-17-2006, 02:23 AM
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I was gonna post a new thread but decided to try & jump onto this one
being that it's similar to my question...which is...what is the best "poorman"
disc break set up for a front drum-to disc on a 67 nova (wagon)??? I've
heard somewhere that the spindles,hats,calipers,power booster, & master cylinder from a early model S-10 (the square ones) could work
does anybody know if there's any truth to this????????????
Thanks in advance
Kimo
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Old 02-17-2006, 04:39 AM
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Contact these guys....

1964-67 Chevy II, Nova 5 lug $85

http://www.scarebird.com/6928.html
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Old 02-17-2006, 06:51 AM
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Quote:
Originally Posted by 86078
I was gonna post a new thread but decided to try & jump onto this one
being that it's similar to my question...which is...what is the best "poorman"
disc break set up for a front drum-to disc on a 67 nova (wagon)??? I've
heard somewhere that the spindles,hats,calipers,power booster, & master cylinder from a early model S-10 (the square ones) could work
does anybody know if there's any truth to this????????????
Thanks in advance
Kimo
If S-10 spindles and brakes fit on an early Nova you wouldn't have to 'hear it from somewhere', it would be prominently discussed on the Nova sites like http://stevesnovasite.com/forums . You may be able to install the S-10 brakes, but there are steering issues to deal with. The cheapest I've ever done are the late 60's and early 70's midsize setups using the early Nova steering arms and modified spindles. If you can find a donor car things can be very inexpensive.

Some info:


http://www.bracketracer.com/novabrake.htm

http://www.oldengine.org/unfaq/leadfoot/discs.htm

http://www.oldengine.org/unfaq/leadf.../drum2disc.htm
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Old 02-17-2006, 11:36 AM
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Thanks poncho62 & onovakind67...i'll check out those sites...as for the S-10
part i just wanted to see if it could be done,being the large picking of parts
for them...i know that the early model 70s parts work well, but here in Hawaii
those parts are few & far in between...and if you do find them in our "small"
junkyards,they act as if it's gold... thanks Kimo
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Old 02-17-2006, 12:17 PM
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The Scarebird brackets use readilly available parts. The brackets for my Pontiac use 78-87 Chevelle rotors and Blazer calipers......
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Old 02-17-2006, 12:24 PM
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Thanks, Poncho62...i'll keep that in mind...Kimo
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