Smaller Power Booster retrofit --> Anyone done this? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Injected68LS1 · 09-20-2003, 12:08 AM

I'm going to try to find a smaller power brake booster to replace my old one. I would like to use a 7" one but I don't know if they work well. Anyone tried this?

After I did that I was going to try to get a newer car master cylinder to fit. I like the look of the aluminum body with the plastic reservoir. Any thoughts on a direct fit?

Any thoughts would be great.

Injected68LS1

FRENCHBLUE72 · 09-20-2003, 12:31 AM

I think that stainless steel brakes make's a kit for that ???

FRENCHBLUE72 · 09-20-2003, 12:35 AM

Here is some thing similar to what you want correct,just with the newer master cyclinder correct???

c-10 racer · 09-20-2003, 12:41 AM

have you got front disc? I think it's gonna be hard to use a newer aluminum master if you don't.....

Injected68LS1 · 09-20-2003, 01:36 AM

FRENCHBLUE72, Yeah. That's what I have in mind. Except for the newer style master. Is that yours? Any idea if the smaller booster still works strong?

c-10 racer, I will be converting to Baer F/R discs. I believe it should work just fine. I'm sure I'll have to find some newer style prop. valve too.

FRENCHBLUE72 · 09-20-2003, 01:51 AM

Nope not mine sure would be kool though.. M y guess is if it slow's down this motor it should slow down a street truck.. Also you can get wilwood proportioning valve's that are adjustable threw summit...

Bowtiefreak · 09-20-2003, 11:12 AM

I don't have one on my truck but I ran the master power unit in my bigblock camaro and it worked like a charm. I plan on using one in the truck too. btw,I did use a standard cast master cylinder, not a newer plastic one.

Injected68LS1 · 09-20-2003, 08:57 PM

I checked out master power and it seems they know all about brakes. I think I will go with 8" dual diaphram booster and a disc/disc combination valve. I'm still on the search for a newer style master cylinder.

dinnut · 09-20-2003, 09:55 PM

i got a cool looking master

chevy2racr · 09-21-2003, 07:25 PM

Slammed67 has a newer aluminum Master

mikeoj · 09-21-2003, 08:31 PM

check out booster setup from a s10

Injected68LS1 · 09-21-2003, 10:39 PM

Did the S10s come with front and rear disc brakes?

mcmlxix · 09-21-2003, 11:41 PM

Newer Astro vans have 4 wheel discs, so do the full sise vans and Tahoes. Maybe even Silverado .. but most likely have ABS .. dont know of that would make a difference....
I want to change my setup too. The stock power booster sticks out so far into the engine bay ... I think I would like it flush against the fire wall ... and the smaller booster too would be nice.

Injected68LS1 · 09-22-2003, 12:03 AM

Thanks for the info. I have a brake application guide at work. So I'll be able to look up the part numbers and piston diameters.

Not sure if it is wise to put the booster right on the firewall. I think that you would have to get rid of the lever between the pedal and the booster. Then to center the booster with the rod you would have to modify the whole pedal assembly and mount. I'll have to look at it closer to see if it's possible. If it isn't, then we're stuck with the booster sticking out a ways.

09-20-2003, 12:08 AM	#1
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Smaller Power Booster retrofit --> Anyone done this? I'm going to try to find a smaller power brake booster to replace my old one. I would like to use a 7" one but I don't know if they work well. Anyone tried this? After I did that I was going to try to get a newer car master cylinder to fit. I like the look of the aluminum body with the plastic reservoir. Any thoughts on a direct fit? Any thoughts would be great. Injected68LS1 __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

09-20-2003, 12:31 AM	#2
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	I think that stainless steel brakes make's a kit for that ??? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-20-2003, 12:35 AM	#3
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Here is some thing similar to what you want correct,just with the newer master cyclinder correct??? Attached Images __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-20-2003, 12:41 AM	#4
c-10 racer Your long lost cousin Join Date: Dec 2000 Location: Cocoa, Florida Posts: 666	have you got front disc? I think it's gonna be hard to use a newer aluminum master if you don't..... __________________ 93 K1500 Ext. Cab

09-20-2003, 01:36 AM	#5
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	FRENCHBLUE72, Yeah. That's what I have in mind. Except for the newer style master. Is that yours? Any idea if the smaller booster still works strong? c-10 racer, I will be converting to Baer F/R discs. I believe it should work just fine. I'm sure I'll have to find some newer style prop. valve too. __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

09-20-2003, 01:51 AM	#6
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Nope not mine sure would be kool though.. M y guess is if it slow's down this motor it should slow down a street truck.. Also you can get wilwood proportioning valve's that are adjustable threw summit... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-20-2003, 11:12 AM	#7
Bowtiefreak Registered User Join Date: Jul 2003 Location: LeRoy, Mich. Posts: 854	I don't have one on my truck but I ran the master power unit in my bigblock camaro and it worked like a charm. I plan on using one in the truck too. btw,I did use a standard cast master cylinder, not a newer plastic one. __________________ 1968 Chevy C10 Short Fleetside/Wood floor ECE 4-6 Drop / 406 Small Block 1971 Chevelle 427 Big Block

09-20-2003, 08:57 PM	#8
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	I checked out master power and it seems they know all about brakes. I think I will go with 8" dual diaphram booster and a disc/disc combination valve. I'm still on the search for a newer style master cylinder. __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

09-20-2003, 09:55 PM	#9
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	i got a cool looking master Attached Images __________________ 70 longbed 496/th400/Ford 9"

09-21-2003, 07:25 PM	#10
chevy2racr So Many Ideas, So Little Money Join Date: Sep 2001 Location: Marshalltown, IA Posts: 1,610	Slammed67 has a newer aluminum Master __________________ 72 Blazer 3/4 ton running gear 4.10s NP205/TH350 350 4in lift half doors 71 C10 with 454 99 S-10 5.1L SBC 700R4 09 Malibu Marshalltown, Iowa

09-21-2003, 08:31 PM	#11
mikeoj Senior Member Join Date: Nov 2000 Location: WI,USA Posts: 495	check out booster setup from a s10 __________________ 69 Lwb C-10 402/700R4 70 Lwb C-10 250/3pd Wisc.

09-21-2003, 10:39 PM	#12
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Did the S10s come with front and rear disc brakes? __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

09-21-2003, 11:41 PM	#13
mcmlxix Collector of Projects Join Date: Apr 2003 Location: Las Vegas Posts: 3,106	Newer Astro vans have 4 wheel discs, so do the full sise vans and Tahoes. Maybe even Silverado .. but most likely have ABS .. dont know of that would make a difference.... I want to change my setup too. The stock power booster sticks out so far into the engine bay ... I think I would like it flush against the fire wall ... and the smaller booster too would be nice. __________________ Rich 1972 K5 Blazer CST Click HERE D60 BIG BRAKE UPGRADE Click HERE

09-22-2003, 12:03 AM	#14
Injected68LS1 Registered User Join Date: Jul 2003 Location: So. Cal. Posts: 389	Thanks for the info. I have a brake application guide at work. So I'll be able to look up the part numbers and piston diameters. Not sure if it is wise to put the booster right on the firewall. I think that you would have to get rid of the lever between the pedal and the booster. Then to center the booster with the rod you would have to modify the whole pedal assembly and mount. I'll have to look at it closer to see if it's possible. If it isn't, then we're stuck with the booster sticking out a ways. __________________ 1968 Chev SWB with 1998 Corvette LS1 305hp and 320 ftlb to the wheels (stock engine!) AEM EMS and wideband O2 sensors Bowtie Overdrive's 700R4, stage 3 Baer 4 wheel discs and 20s http://iciclelanding.com/aperture?album=2049&view=album

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