C-2 Distributor Identification
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
I located the pics... email me at LakeMachine@Hotmail.com and I'll send them. I'm not a member of any on-line photo board. If you want to post them.. feel free.
I have 3 pertinent pics...
#1 showing differences in driven gears... but one could be an aftermarket gear so it means nothing for this discussion.
#2 showing differences in oil holes
#3 showing differences in the top casting (visible above the manifold)
I have 3 pertinent pics...
#1 showing differences in driven gears... but one could be an aftermarket gear so it means nothing for this discussion.
#2 showing differences in oil holes
#3 showing differences in the top casting (visible above the manifold)
Drifting
Joined: Jul 2005
Posts: 1,977
Likes: 195
From: Putnam Valley, New York. Amateur Radio Operator K2NS
Distributors
Original castings over the years might have had holes and ridges in different locations, but the 1983 Chevrolet parts book that I have has the bare distributor housing listed as part number 1851158, and fitting 1962-1974 all Corvettes, all engines, BB & SB.
RON
Race Director
Joined: Aug 1999
Posts: 18,126
Likes: 174
From: WI
I have an original 1111069 tach drive distributor if your interested (correct for a 327/365hp), I would have to check the date though....If you compare a reproduction tag to an original tag you will see a difference in the size of the part number.
A true mid-year BB distributor has a bridge covering part of the cast in groove just above the main drive gear...
....redvetracr
A true mid-year BB distributor has a bridge covering part of the cast in groove just above the main drive gear...
....redvetracr
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
" true mid-year BB distributor has a bridge covering part of the cast in groove just above the main drive gear..."
This is what I remember but it could have been on pass car aluminum bodied distributors and not the tach drive.
Somebody post Tom's pictures.
This is what I remember but it could have been on pass car aluminum bodied distributors and not the tach drive.
Somebody post Tom's pictures.
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Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
I have an original 1111069 tach drive distributor if your interested (correct for a 327/365hp), I would have to check the date though....If you compare a reproduction tag to an original tag you will see a difference in the size of the part number.
A true mid-year BB distributor has a bridge covering part of the cast in groove just above the main drive gear...
....redvetracr
A true mid-year BB distributor has a bridge covering part of the cast in groove just above the main drive gear...
....redvetracr
And.... if you buy one from a vendor for a BB, make sure you wirewheel the paint off the bridge to make sure it is not just brazed to make it a "look-alike".
I have seen this many times.
Last edited by Tom454; Jan 13, 2007 at 08:03 PM. Reason: typo
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
The same finished Delco cast iron distributor housing (P/N 1851158) was used for all '63-'74 carbureted Corvette SB and BB tach-drive distributors; there were minor drawing changes in the part over the years, but none were related to distributor usage. 
Race Director
Joined: Aug 1999
Posts: 18,126
Likes: 174
From: WI
...redvetracr
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
The housing drawing shows a minor dimensional revision to the oil annulus in 1967, and the position of the upper and lower oil holes was rotated 150* in 1971; those are about the only changes ever made to the housing.
Safety Car
Joined: Feb 2006
Posts: 4,367
Likes: 59
From: FL
Go to http://tinypic.com/ and post those pictures for free.
It is simple.
1. Go to http://tinypic.com/
2. Click the Browse button and find your file.
3. Select the picture file and Click Save
4. Click Upload Image
5. Copy the URL
6. Click the yellow button on here with the mountains.
7. Paste the URL in there. It should begin with http not the IMG tag.
8. Click Preview Post and see that it is ok.
It is simple.
1. Go to http://tinypic.com/
2. Click the Browse button and find your file.
3. Select the picture file and Click Save
4. Click Upload Image
5. Copy the URL
6. Click the yellow button on here with the mountains.
7. Paste the URL in there. It should begin with http not the IMG tag.
8. Click Preview Post and see that it is ok.
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
The pic(s) with the brazed bridge also have the lower oil hole brazed shut. I have no clue what this was about. The oil holes on that distributor were rotated as described above. The right hand (gray)distributior is the correct original out of my own 66 327 (except for the color and the stainless roller bearing cross-shaft coupler). I have the tag for that one.
The other one was marketed as a 67 BB unit.
The difference in gears may be just aftermarket error.
The other one was marketed as a 67 BB unit.
The difference in gears may be just aftermarket error.
