Author Topic: 346 67-68 master cylinder cover  (Read 1399 times)

gary

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346 67-68 master cylinder cover
« on: December 22, 2012, 02:00:37 PM »
 Anybody tell me what the orginal assembly line 346 master cylinder cover WORDING was in 67 and 68  on Z/28 cars? All the repos are the same for 67-69. They made a couple of different covers in 69 with different wording but I don't know what is correct for 67 and 68. Thanks and Happy Holidays

1968 Z28

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Re: 346 67-68 master cylinder cover
« Reply #1 on: December 22, 2012, 06:14:46 PM »
Gary.....pictures of my 1968 Z28 07c original.  Hope this helps.

   

   

   
Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles

gary

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Re: 346 67-68 master cylinder cover
« Reply #2 on: December 23, 2012, 01:26:04 PM »
Thanks Jerry,
     Thats the one I had for my 6D 68 Z/28. Now I know its correct. When you have time is there a date on your 346 master cylinder? I found one on my 69 Z/28 309 master but not one on  the 346. Mine has D1 or D2 on the side.  Have a Merry Christmas.   Thanks again, Gary

JohnZ

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Re: 346 67-68 master cylinder cover
« Reply #3 on: December 23, 2012, 04:11:45 PM »
When you have time is there a date on your 346 master cylinder? I found one on my 69 Z/28 309 master but not one on  the 346. Mine has D1 or D2 on the side.

The "D1" or "D2" aren't dates - those are foundry pattern numbers from the Danville Foundry, which produced most of the master cylinder castings for Delco-Moraine.
'69 Z/28
Fathom Green
CRG

Mike S

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Re: 346 67-68 master cylinder cover
« Reply #4 on: December 23, 2012, 04:59:18 PM »
Gary,

 FWIW, both my 67's (4B & 5B) still retain their original 346 'WT' master cylinders and neither have date codes on them.
Also, Long Island Corvettes has the correct reproduction covers with the vents and wording (P/N 52-18N).
They also sell the correct steel bale wire for a lot less than others Camaro suppliers.

Merry Christmas,
Mike
67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Restored

1968 Z28

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Re: 346 67-68 master cylinder cover
« Reply #5 on: December 23, 2012, 11:17:02 PM »
Mike is correct.  My "WT" master cylinder does not have a date also.  Just the "WT" letters on the front small machined surface
Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles

Ed_B

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Re: 346 67-68 master cylinder cover
« Reply #6 on: December 24, 2012, 12:11:50 AM »
You may or may not find a julian date code stamped into the machined boss on the front outlet. Seems 68's only had them sporadically.

Ed

gary

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Re: 346 67-68 master cylinder cover
« Reply #7 on: December 24, 2012, 02:01:43 AM »
Thanks Guys. Merry Christmas and a Happy New Year.   Gary

69Z28-RS

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Re: 346 67-68 master cylinder cover
« Reply #8 on: December 24, 2012, 06:10:52 AM »
the 1969 'US' stamped master cylinders had a date code (julian) cast into the side of the MC opposite the PN.  I'd be surprised if all the D-R MC weren't similarly cast.

Gary
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
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1968 Z28

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Re: 346 67-68 master cylinder cover
« Reply #9 on: December 25, 2012, 06:07:21 AM »
Gary....you have a PM
Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles

luv2sixty9

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Re: 346 67-68 master cylinder cover
« Reply #10 on: September 02, 2014, 10:02:22 PM »
I have two original 346 Master Cylinders with the "WT" stamping. None have a Julian Date Code.

- The first MC has the backwards casted 346 part number and it has the SAE J1703 Lid

- The second one has the normal casted part number and has the same lid pictured above.

I'm assuming the backward 346 MC with the J1703 lid is for a verly late 68 Z28
1967 Z/28 Butternut Yellow
1969 Z/28 Rally Green
1969 RS Z/28 Lemans Blue
1969 RS Z/28 Olympic Gold
1969 RS SS Pace Car
2010 Aqua Blue 2SS RS