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Thread: What prop valve do I have here?
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01-28-2018 #1
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What prop valve do I have here?
Before my dad passed away, he was going to convert his rear drum '71 Camaro to rear disc so he bought a bunch of parts for the conversion, including a proportioning valve. My strong suspicion is it's a 4 wheel disc valve from a 4-wheel disc Trans Am/Firebird. It's never been used and has been in storage for the last 6-7 years or so.
With my brake woes going on, I was thinking about putting on this new proportioning valve to rule out the prop valve as the issue.
But I'm not 100% certain, so I figured I'd ask here to see if anyone knew...
It's a brass body valve identical in appearance to this one, but it has some markings stamped on the side that I can't seem to locate online...
HJ 9 349 9419
1971 Camaro
GM HT383, MiniRam EFI, AFR heads
"8-speed" trans (700R4 + Gear Vendors OD)
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01-28-2018 #2
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- Aug 2007
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- Jonesboro, Arkansas
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To me it looks like a GM valve. Pretty common, so you shouldn't have any problems. Hopefully someone else will respond.
Carl Wilson
1968 Camaro - T-56 6 speed - 383 Stroker, 2014 Mustang GT seats. FiTech EFI, Tanks Inc. Tank with Deutschwerks fuel pump.
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01-28-2018 #3
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- Jan 2006
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Yeah. The main question is it a 4 wheel disc valve...
1971 Camaro
GM HT383, MiniRam EFI, AFR heads
"8-speed" trans (700R4 + Gear Vendors OD)
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01-28-2018 #4
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- Aug 2010
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- Seattle area
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You want one from a 1979-81 Firebird .part number 1257189. That is what I use on my 1979 Z-28 RS Camaro with 4 wheel Baer Brakes
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