Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

A-Body Master Cylinder upgrade/ update?

Thread Tools
 
Search this Thread
 
Old Jun 24, 2021 | 08:56 PM
  #1  
CutLS's Avatar
Thread Starter
Launching!
10 Year Member
Photogenic
Liked
Loved
iTrader: (6)
 
Joined: Sep 2011
Posts: 233
Likes: 6
From: Minnesota
Default A-Body Master Cylinder upgrade/ update?

Anyone with a 70s GM A Body with 4 wheel disc, upgraded their master cylinder to a more standard plastic reservoir from a newer vehicle?? I was wondering if anyone has done that and what did they have to do. I know master cylinders would have different pressure ratings for brakes so I'm not sure if it can be done with crazy modifications.
Reply
Old Jun 24, 2021 | 10:16 PM
  #2  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
Default

Most master cylinders work at similar pressures for the diameter of cylinder.
I would be more concerned with the diameter required for your particular application than operating pressure.
Reply
Old Jun 25, 2021 | 04:52 AM
  #3  
Jimbo1367's Avatar
TECH Senior Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2009
Posts: 8,034
Likes: 663
Default

You can go to RockAuto.com and they list the bore diameter within the master cylinders selection. This should give you the info needed to search for a new master. Just a thought
Reply
Old Jun 25, 2021 | 07:37 AM
  #4  
66chevelle_02SS's Avatar
Teching In
15 Year Member
iTrader: (7)
 
Joined: Sep 2008
Posts: 42
Likes: 5
Default

When I upgraded the brakes to 4 wheel disk from a gen 4 Camaro on my Chevelle I used a master cylinder from a gen 4 Camaro. I also modified the brake booster to work with on the Chevelle.
Reply
Old Jun 25, 2021 | 01:51 PM
  #5  
CutLS's Avatar
Thread Starter
Launching!
10 Year Member
Photogenic
Liked
Loved
iTrader: (6)
 
Joined: Sep 2011
Posts: 233
Likes: 6
From: Minnesota
Default

Originally Posted by 66chevelle_02SS
When I upgraded the brakes to 4 wheel disk from a gen 4 Camaro on my Chevelle I used a master cylinder from a gen 4 Camaro. I also modified the brake booster to work with on the Chevelle.
I did the Get Disc brake kit and did the older GM disc brake swap. I then swapped my front for a C5 Corvette knuckle, hub, rotor and caliper. Did you use the Chevelle booster or the camaro booster? What type of modification was needed. I asked this question on a olds forum and a guy said he used a late 80s Dodge D100 and made the mounting holes a little bigger.
Reply
Old Jul 1, 2021 | 10:58 AM
  #6  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,617
Likes: 1,883
From: Little Austin
Default

https://ls1tech.com/forums/conversio...n-3-0-a-2.html

Post #72 and later.

Andrew
Reply




All times are GMT -5. The time now is 04:59 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE