WIW: 171 Master Cylinder and Bendix Booster for 1970 E body

[VCODE]

If your looking for 100% correct, just for your info the Cover does not have the stamping on it and the cover gasket is the later type. No big deal and can be corrected. This 171 master are hard to find.

[EV2RTSE]

Agree the lid and gasket looks to be the 71-74 type. Same outward appearance and will work fine. The stamp on the lid on my 70 reads "USE ONLY SAE J 1703 BRAKE FLUID". I have a 71 master as well and the lid is not stamped on that one. Not sure but I think RestoRick stamps the lid if it's important to you?

Here is a thread with some pics of the proprortioning valves / metering blocks.
https://forum.e-bodies.org/wheels-tires-brakes-suspension-and-steering/12/proportioning-valve-and-metering-block-1970-disc-brake-cuda/19107/

[JH27N0B]

Resto Rick has a service available to stamp the correct SAE 1703 information into a unstamped lid.
The cover gasket issue to me isn't relevant as no judging exists or has ever existed including Pebble Beach where they remove a lid to inspect it.  That reminds me of when I was restoring my T/A to OE standards a car buddy of mine was giving me grief about the effort and money I was spending to get original parts.  He asked if I was going to use DOT 5 in my car.  I said yes and he laughed and said restoration won't be OE correct then, and will also require leaded gas.  He had a valid point, but I didn't want to use DOT 3 so it has incorrect silicone in it.  It may have had some leaded AVgas in the tank, when it won OE gold the only time I entered the car in a show. Probably the only time it will ever get judged to that standard.  I didn't see the judges put a tester down the filler neck to check my gas so I don't think I got credit for the lead. 

[MoparCarGuy]

The 70 power brake pedal linkage is unique. The below may be helpful.

[70_440-6Cuda]

Great info here - thank you.  I did not even check yet what the linkage I have looks like, I would assume it is probably original.  Looks like someone swapped out the metering block for a Wilwood proportioning valve, so the hunt goes on - anybody have a correct late '70 metering block let me know.  Also, anyone make a re-pop check valve, or anyone have a decent OE one?

I will be using Resto Rick for some other things as well so I will add the stamping to the list

[70_440-6Cuda]

For hose looking for the 171 Master Cylinder, my understanding is the Ram Man has several... I am told this is where the one I picked up came from and that he has a few more in stock.

I have seen mixed reviews but seems to be a good resource if you are looking.

https://therammaninc.com/

[mccannix]

With that many hanging around his shop I wonder if they are a reproduction.
On his website he offers these 2225621 Hemi reproduction masters for $145.00 complete with correctly embossed cap,
plus they're all over ebay.
It would make sense for him to see if they could be manufactured in the 171 version.
https://therammaninc.com/products/shop_view/MOPAR-2225621-DISC-MASTER-CYLINDER-HEMI-REPRODUCTION-78

[JH27N0B]

That  "hemi" master cylinder has been available aftermarket for probably 50 years.  My question is does the one he sells have the 2225621 casting number on it, as the aftermarkets didn't.  Does he modify those to make the underside have the original style casting numbers then paint black?  Did someone contract to have those made with a slight modification to the casting to change to the correct casting number? 
https://www.amazon.com/Raybestos-MC36283-Professional-Master-Cylinder/dp/B000C75NZ8
Also why does he list it as 1-1/4" bore, they are 1-1/8" bore.
I guess I should be flattered he has a link in his listing that takes you to the article I wrote for Mopar Action almost 20 years ago. 

[benguin]

That squared front is a challenge if going for original look, but I like that he's got that lid with it.  Did any of the 1970 power disc cars have a squared front on the MC?  I know the factory service manual has a generic picture of one, but I always presumed that was an old "stock photo".

If you are looking for brake lines to the MC, I'd suggest Fine Lines. If you need a one-piece main line to the rear axle (not the two piece), let me know- I've got an Inline Tubes one that I misordered and will cut you a great deal. :-)
  Ben

[JH27N0B]

The 2225621 casting master cylinder was used on '70 C bodies with disc and believe it or not on '70 B bodies with manual disc brakes (apparently Taxi cab spec only).
It was found on hemis in 67-'69 (B Body) when disc brakes were ordered.

[mccannix]

I know the 'jobber' master you show has been around for ages,
but unlike it, the one he offers if you scroll through his pictures, does have the number on bottom as seen here,
also a crisp lettered cap....
and yes Brad you should be flattered,.... one of the best written articles on these...

[Mr Cuda]

That  "hemi" master cylinder has been available aftermarket for probably 50 years.  My question is does the one he sells have the 2225621 casting number on it, as the aftermarkets didn't.  Does he modify those to make the underside have the original style casting numbers then paint black?  Did someone contract to have those made with a slight modification to the casting to change to the correct casting number? 
https://www.amazon.com/Raybestos-MC36283-Professional-Master-Cylinder/dp/B000C75NZ8
Also why does he list it as 1-1/4" bore, they are 1-1/8" bore.
I guess I should be flattered he has a link in his listing that takes you to the article I wrote for Mopar Action almost 20 years ago. 

When I was digging for boosters,  i came across all my B body stuff.

I have 2225621 masters, and also found 2228811 masters that are identical.
Google shows nothing, except forklift applications,  but these are 4 bolt flange.

Also,  don't all replacement manufacturers  parts have a location counter sink in the end of the casting?

OE does not,  and that's how i quickly sort them.

[JH27N0B]

I just don't see the ability to get a part like that produced given the low volume usage and the amount of work to get it done.  You need a casting, machining, cap, bail wire, pistons, springs.  Then get that all sourced, then assembled.  From what I've seen of Wayne he doesn't strike me as an engineer and sourcing specialist.  So if in fact these are available now with the 2225621 number cast on them, I am guessing someone made an arrangement to modify the long available casting to change the number on it.  The aftermarket casting used to say "made in USA" on the bottom, obviously that had to have been modified after the last US plant my old employer had was closed around 2009 and production moved over to China.
Maybe they changed the number then, I don't know.  But as far as someone tooling that casting with 2225621 from scratch I can't see someone bankrolling that.
I'm thinking designing and tooling a 2229171 repro would require a sales volume of 500 or maybe even 1000 a year to make it cost effective, unless customers were willing to pay $1000 or more each for them, in which case maybe 100 or 200 a year volume required, but regardless there just isn't any cost effective way to do that for all intents and purposes.  Few are going to pay 1000+ for a repro, certainly not 100-200 customers a year.
The article was fun to do.  And fun to hear later some big names in the Mopar NOS parts business hated me afterwards for spilling the beans on identifying OEM master cylinders.  They had kept that info close to the vest, so they could buy rare parts cheap and flip to the top shops for big money.  And top shops could put out correct restos with that closely held info, while all the little guys and peasants had little way to know what MC was correct with that car.  My article screwed that up for them. 

[70_440-6Cuda]

I was told Wayne may have a stash of old stuff lying around, so who knows?  I didn't get a screaming deal or anything, but got what I need to make the car correct.  It is very frustrating that the car has been modified in so many ways, some smaller details than others - but why on earth would you dump the power brake booster, even if you had Wilwood discs?

Most 171 master cylinders I have found are in the $1000 range and need rebuilding - I figure under $2K, while steep, is still pretty decent for both rebuilt parts with all of the correct '70 parts attached.

I know several guys here have been looking for the 171 master cylinder, so I would suggest giving Wayne a call - nothing to lose...

Thanks everyone for all of the feedback - much appreciated and as usual learned a ton... now on the hunt for a correct metering block - anyone make an aftermarket correct replacement?  Looks like Inline tube has one, not sure how "correct" it is - anyone know?

https://www.inlinetube.com/products/blk248?currency=USD&variant=13202623594557&utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&utm_campaign=gs-2018-11-22&utm_source=google&utm_medium=smart_campaign&gclid=CjwKCAiAxvGfBhB-EiwAMPakqhxhMI6kJJs5Q37V8syVYVo54OyaXNcQI4zCKaDMUBU0P96gRyCnJhoC1_QQAvD_BwE

[EV2RTSE]

The repops don't look terrible but lack the markings of an original. But more importantly they seem to be prone to leaking / poor sealing, I know my brother went through several of them before giving up and paying up for an original & rebuilding it with the kit from Musclecar Research. No problems after that.