CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
April 21, 2015, 04:54:50 AM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
112140 Posts in 12882 Topics by 4931 Members
Latest Member: Euclid
* Home Help Search Login Register
+  CRG Discussion Forum
|-+  Camaro Research Group Discussion
| |-+  Maintenance
| | |-+  5460346 master cylinder brass seat source
« previous next »
Pages: [1] Print
Author Topic: 5460346 master cylinder brass seat source  (Read 1661 times)
Mike S
Hero Member
Posts: 1249

View Profile
« on: February 06, 2013, 06:41:09 PM »

 I wanted to share this with you in case someone is looking for replacement master cylinder brass seats.
 When I had the master cylinder rebuilt, the brass seats were removed as part of the cleaning process. Not wanting to reinstall these because the seat face had flair groove scars
and I don't like reusing anything that has a compression surface because chances are it will not reseat good.
I found these brass seats on the Muscle Car Research web site (the makers of other obsolete brake components rebuild kits such as metering (hold off) valve and pressure distribution block for 1st gen.)
and they fit the GM 5460346 (WT) master cylinder on my 67 perfectly. These measure .003" (.374"-old vs. .377"-new) wider at the seat area because these haven't been compressed yet so
make sure they are centered before installing and use an old brake pipe with a double flair to push it in (for those who don't know that technique).

The price is right so stock up while they exist.
The URL is:

Attached is a picture of the original plugs removed from the MC with measurements. Maybe these replacements will fit other applications.
And no, I have no affiliation with MCR other than a happy customer.


67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Restored
Posts: 18

View Profile WWW Email
« Reply #1 on: February 09, 2013, 04:24:23 PM »

Thanks for the plug, Mike!

Scott Hollenbeck
Administrator, Mustang 428 Cobra Jet Registry
Owner, Muscle Car Research LLC
1970 Ford Mustang R-Code Mach 1
2006 Dodge Charger SRT8
1995 Chevrolet Impala SS
Posts: 179

View Profile
« Reply #2 on: March 22, 2013, 06:45:04 PM »

I have ordered and used several of there re seal kits for the hold off and pressure regulating valves and the distribution block for 69 Camaro. Great stuff.


X66 L78 M22 4.10 Deluxe Threads, PNT 10/10, Red Hockey stripe
Posts: 271

View Profile Email
« Reply #3 on: March 22, 2015, 08:09:41 PM »

Dum question mike or anybody. When installing prv's....... Rubber or spring first?

L78 steve
Hero Member
Posts: 547

View Profile Email
« Reply #4 on: March 23, 2015, 12:30:48 PM »

Spring under rubber like the pic. above. Rubber facing out.

69 Z/28 Dover White X33,ZL2,PS,M20,
67 SS/RS Mt. Green 1W,2LGSR,3SL,4K,5BY,07C
70 Nova L78 Blk. Cherry,Sandalwood,M21,02B
Pages: [1] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.095 seconds with 17 queries.