power brake conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hank · 05-06-2004, 05:17 PM

i have a couple of questions about a power brake conversion. my 71 has front discs and manual brakes.

1) do i need a new porpotioning valve and master cylinder, or can i use the ones from my manual set up?

2) i just changed all of my brake lines, calipers and wheel cylinders during a brake change. will i need new ones for the power set up?

thanks for ya'lls help.

neonlarry · 05-06-2004, 06:50 PM

You can use the same master and p-valve. The rest of your brake stuff will be ok also. You should be able to get by bending (carefully) your lines to the master to move it forward a little to make room for the power booster.

Longhorn Man · 05-06-2004, 07:07 PM

Basicly, unbolt the master cylinder fron the firewall, and slip the booster inbetween.

grayw0lf · 05-06-2004, 11:22 PM

Its pretty much a piece of cake. (Knock on wood.)

I just finished my power brake conversion less than an hour ago. Just make sure you get the power brake pushrod (from the pedal to teh booster). The hardest part was just bleeding the brakes, which is only b/c I'm slying solo.

Good Luck

John

Tx Firefighter · 05-07-2004, 12:59 AM

Quote:

Originally Posted by grayw0lf

Its pretty much a piece of cake. (Knock on wood.)

I just finished my power brake conversion less than an hour ago. Just make sure you get the power brake pushrod (from the pedal to teh booster). The hardest part was just bleeding the brakes, which is only b/c I'm slying solo.

Good Luck

John

Don't even lossen any brake lines, just unbolt the master cylinder from the firewall with the lines still hooked to it. If you do it this way, there won't be any bleeding to do.

05-06-2004, 05:17 PM	#1
hank Registered User Join Date: Aug 2001 Location: texas, usa Posts: 194	power brake conversion i have a couple of questions about a power brake conversion. my 71 has front discs and manual brakes. 1) do i need a new porpotioning valve and master cylinder, or can i use the ones from my manual set up? 2) i just changed all of my brake lines, calipers and wheel cylinders during a brake change. will i need new ones for the power set up? thanks for ya'lls help.

05-06-2004, 06:50 PM	#2
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	You can use the same master and p-valve. The rest of your brake stuff will be ok also. You should be able to get by bending (carefully) your lines to the master to move it forward a little to make room for the power booster. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

05-06-2004, 11:22 PM	#4
grayw0lf Registered User Join Date: Apr 2004 Location: Clanton, AL Posts: 1,253	Its pretty much a piece of cake. (Knock on wood.) I just finished my power brake conversion less than an hour ago. Just make sure you get the power brake pushrod (from the pedal to teh booster). The hardest part was just bleeding the brakes, which is only b/c I'm slying solo. Good Luck John __________________ 85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days! 05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal!

05-06-2004, 07:07 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Basicly, unbolt the master cylinder fron the firewall, and slip the booster inbetween.



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