Prop valve for rear disc conversion
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Supreme Member
Joined: Nov 2001
Posts: 1,886
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From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
Prop valve for rear disc conversion
Yeah yeah yeah, chill out all you search *****, I did like 8. You get a damn phone book when you search for this kinda stuff.
Anyway, my question pertains to PNs and line flares.
I came across many posts that had GM PNs in them and here are two that appear to be for the same application, but two different numbers:
GM 1LE 4wheel disc
10164112
14089496
I found a few other numbers but didn't write them down, two are confusing enough for me. If someone can shed some light on this and tell me which I would need that would be great.
Also, I have considered a Wilwood adjustable prop valve, but I don't know if I want to do all of that. I know it would be optimal for max. performance, but I want a simple bolt on swap. I am of the understanding that the Wilwood has a different flare requirement than the stock lines have. I don't want to reflare any lines. If I am wrong about that, please let me know!!
So let me know which valve I would need, thank you!!!
Anyway, my question pertains to PNs and line flares.
I came across many posts that had GM PNs in them and here are two that appear to be for the same application, but two different numbers:
GM 1LE 4wheel disc
10164112
14089496
I found a few other numbers but didn't write them down, two are confusing enough for me. If someone can shed some light on this and tell me which I would need that would be great.
Also, I have considered a Wilwood adjustable prop valve, but I don't know if I want to do all of that. I know it would be optimal for max. performance, but I want a simple bolt on swap. I am of the understanding that the Wilwood has a different flare requirement than the stock lines have. I don't want to reflare any lines. If I am wrong about that, please let me know!!
So let me know which valve I would need, thank you!!!
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Joined: May 2004
Posts: 1,340
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
I'll rule out the 14089496 for you, that won't work on your lines. Its the 1LE valve you want, but the wrong pitch threads. Its made for pre-'89 1/2 cars.
You want the 1lLE valve for post-'89 1/2 cars, but soory, I don't know if the other part # you posted is that or not.
You want the 1lLE valve for post-'89 1/2 cars, but soory, I don't know if the other part # you posted is that or not.
Supreme Member

Joined: Aug 2001
Posts: 2,136
Likes: 2
From: Costal Alabama
Car: 1989 Iroc-Z
Engine: 350, ZZ4 equivalent
Transmission: Pro-Built Road Race 700R4
Axle/Gears: 3.23 Dana 44
14089496 1989 1st design: M1.0 tube nut threads (For 1982 - early 1989 applications)
10136840 (GM changed to 10164112) 1989 2nd design - 1992: M1.5 tube nut threads (Changed Late 1989)
So you need 10164112, I don't know why GM has to change part numbers all the time, doesn't make much sence to me.
10136840 (GM changed to 10164112) 1989 2nd design - 1992: M1.5 tube nut threads (Changed Late 1989)
So you need 10164112, I don't know why GM has to change part numbers all the time, doesn't make much sence to me.
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Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
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
Tremo, Yes...that's the valve you want. Click the link in my sig for pics and descriptions on my 1LE upgrade, complete with all part numbers and such.
Ed
Ed
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