disc/disc prop valve question......
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Car: 71 Challenger, 70 duster, 89 iroc,
Engine: hemi and 440
Transmission: a-833 4 speed
disc/disc prop valve question......
I just put in a 9 bolt posi rear into my 92 camaro rs. I went from rear drum to disc and bought a disc prop valve, I think. I bought it from a guy on here. I tried to see if it would fit where my existing one is located, but there are either some parts missing or I need another line. CHeck out my pics and tell me if this is a disc prop valve or not. If not I need one if anyone has one for sale.
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Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: disc/disc prop valve question......
I think it is an early style before GM went to aluminum valves in the late 80s, I saw one like that on a '84 or so car in the scrap yard. You can't tell disc or drum just by looking at them, the differences are internal.
In any case, replace it as it's iron, old, and likely very dirty inside.
Ed
In any case, replace it as it's iron, old, and likely very dirty inside.
Ed
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Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: disc/disc prop valve question......
Possibly, and they're ugly as well. I modified one off a MCSS for a rear disc setup and it looked just like that.
Ed
Ed
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Car: 71 Challenger, 70 duster, 89 iroc,
Engine: hemi and 440
Transmission: a-833 4 speed
Re: disc/disc prop valve question......
I am not sure what it is off too. I am trying to get my money back on this one, because it obviously doesn't work for my application. I don't know what goes into the front of it. It looks like another line, but I think a plug with a screw bleeder is suppose to go there. I bought this from CAMFIRE. Has anyone dealt with him before? Do any of you have a disc brake prop valve for sale?
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Car: 1983 Z/28
Engine: Edelbrock 355
Transmission: T-56
Axle/Gears: 3.42/Zexel/PBR
Re: disc/disc prop valve question......
its a prop valve from a 82-83 Car. possibly 84 as well but i'm not sure on that. I do know that my 83 has one identical to it, I pulled one from a 82 disc/disc car for my disc swap and it is identical as well. as mentioned before there is no way to tell if it is from a disc car by looking at it, and yes, those older steel prop valves are SAE fittings. I had to make custom lines going from the prop valve to the MC because I'm running a LS1 master which is metric.
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Car: 71 Challenger, 70 duster, 89 iroc,
Engine: hemi and 440
Transmission: a-833 4 speed
Re: disc/disc prop valve question......
thanks for all your help. The guy I bought it off of is taking it back and sending me a newer style one.
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Car: 82,83,99 T/As
Engine: 350,350,383
Transmission: ST-10,700r4,4l60e
Axle/Gears: P-3.23,P-3.42?,P-4.10
Re: disc/disc prop valve question......
I need to rebump this thread. Just reading through the forums and came across this.
My 83 had one that looks like the original post. That was on my drum car. I swapped in a LS1 rear and bought a replacement prop valve.
The one I bought was from a board members claimed 83 Camaro. It looked exactly like my drum one.
We had a problem installing it as none of the original lines were fitting it. The one I bought did not come with any fittings or lines. So we decided to take apart the old and new one to see if we could transfer parts from one to the other so I wouldn't have to change lines. The bottom unscrews off, but it took major force to do it. There's a spring and a pin if I remember exactly. I think they were identical, but I'll have to ask my friend as I don't remember.
I ended up using the replacement "disc" prop valve. I had to cut my original fittings and crimp on replacements. Funny thing is, it turned out to be metric. Which doesn't make sense as I read 82-83 are supposed to be SAE.
The brake pedal feels weird, but I'm not sure exactly how it runs as I haven't driven it much. Still working on it.
Any ideas what I have?
My 83 had one that looks like the original post. That was on my drum car. I swapped in a LS1 rear and bought a replacement prop valve.
The one I bought was from a board members claimed 83 Camaro. It looked exactly like my drum one.
We had a problem installing it as none of the original lines were fitting it. The one I bought did not come with any fittings or lines. So we decided to take apart the old and new one to see if we could transfer parts from one to the other so I wouldn't have to change lines. The bottom unscrews off, but it took major force to do it. There's a spring and a pin if I remember exactly. I think they were identical, but I'll have to ask my friend as I don't remember.
I ended up using the replacement "disc" prop valve. I had to cut my original fittings and crimp on replacements. Funny thing is, it turned out to be metric. Which doesn't make sense as I read 82-83 are supposed to be SAE.
The brake pedal feels weird, but I'm not sure exactly how it runs as I haven't driven it much. Still working on it.
Any ideas what I have?
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Car: 1983 Z-28
Engine: 5.7 L
Transmission: T-5
Re: disc/disc prop valve question......
the one on my 83 camaro looks like that but it has sum sort of nipple on the back...anyone know wat it is?...
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Re: disc/disc prop valve question......
This is the type of valve I have on '85 Z28 with drum brakes. Appeared to look original to the car. Fittings to MC and brake lines were metric. Plug for spring and valve are standard. I did a disc conversion and modded the valve with the stiffer spring. Fixed my brake problems.
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Car: 83 L69 Z28 T tops
Engine: 305 H.O.
Transmission: 5 spd
Axle/Gears: 3:73
Re: disc/disc prop valve question......
JamesC,
Noticed the strut tower brace in your pic. can you tell me where you got it ? All i can find is one for TPI cars. Thanks
Noticed the strut tower brace in your pic. can you tell me where you got it ? All i can find is one for TPI cars. Thanks
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