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Prop Valve 10164112

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Old 03-09-2016, 02:19 PM
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Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Prop Valve 10164112

SO can I use this prop valve http://www.flynbye.com/catalog/i172.html for a 91 with stock front disc and a swapped 9 bolt rear w/disc?


Says its for the 1 LE but i dont think they made another disc/ disc set up? Is that a better option then the stock disc/drum valve?
Old 03-09-2016, 04:10 PM
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Prop Valve 10164112

Originally Posted by insomniac
SO can I use this prop valve http://www.flynbye.com/catalog/i172.html for a 91 with stock front disc and a swapped 9 bolt rear w/disc?

Says its for the 1 LE but i dont think they made another disc/ disc set up? Is that a better option then the stock disc/drum valve?
The valve is correct if the 9-bolt has PBR's (or if you swap to them).

There are three valves: disc/drum, disc/disc (Delco-Moraine), and disc/disc (performance/1LE/PBRs). All rear disc cars were equipped with the latter, 89-92. For best brake performance, I'd use the correct valve for your application.

If the 9-bolt has Delco-Moraines, however, you'll have an issue using the correct valve because it won't fit the tube nut threads on your 91.

JamesC
Old 03-09-2016, 06:16 PM
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Join Date: Jul 2010
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Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Re: Prop Valve 10164112

Originally Posted by JamesC
The valve is correct if the 9-bolt has PBR's (or if you swap to them).

There are three valves: disc/drum, disc/disc (Delco-Moraine), and disc/disc (performance/1LE/PBRs). All rear disc cars were equipped with the latter, 89-92. For best brake performance, I'd use the correct valve for your application.

If the 9-bolt has Delco-Moraines, however, you'll have an issue using the correct valve because it won't fit the tube nut threads on your 91.

JamesC
whats a pbr?
Old 03-09-2016, 07:02 PM
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Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Prop Valve 10164112

Originally Posted by insomniac
whats a pbr?
Single piston alum calipers. If yours are iron, they're Delco-Moraines (and not terribly desirable as they often don't function very well).

JamesC
Old 03-09-2016, 07:03 PM
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Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Re: Prop Valve 10164112

Originally Posted by JamesC
Single piston alum calipers. If yours are iron, they're Delco-Moraines (and not terribly desirable as they often don't function very well).

JamesC
yes i got the shitty ones then... with the big *** weird counterweight on the ebrake....
Old 03-09-2016, 07:08 PM
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Re: Prop Valve 10164112

and yes they work horrible
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