Dist Cap ID ????
 

What is correct DELCO Distrib Cap for 1970 Z28 ???

I have this with Delco - Remy R & PATENT 2769047

AND I also have a similar Black Cap with NO LETTERS/NUMBERS

The 1970 Z/28 would have had the "Delco Remy" "Patent Pending" R distributor cap from the factory. The "Patent" 2769047 and the cap without letters would be a service replacement cap.

mhm1966, So my above pictured cap is NOT Assy Line Correct !!!!!!!!!!!

and there was Two different service replacement caps ?? One like above
and 2nd .........without any writing ???????

Chuck, the cap you have in the picture is not assembly line correct for a 1970 Z/28. The cap is a later style replacement cap that was used in 1973 production. They made several different versions of this cap. The one you have 2769047 with aluminum contacts, 2769047 R both with aluminum and copper contacts, and some had other letters like T and BH on top of the cap.

early and late "patent pending" caps.
Pic 1 is earlier type. No "R"
Pic 2 is later type with "R".
They are saying you need bottom type.

MHM1966, Thank You for your replies...........

Interested to learn what/where is your source of info so as the Camaro Nat'l Judges
will "Believe"

What 1970 GM V-8 engines during what months received which cap ???

and 1971 etc etc...........

Did the " PATENT 2769047 R " not start until 1973 ??? and all 70-72 received
the PATENT PENDING.......

Thanks for your patience, if you have any left

Ive asked Charley Lillard to get a picture of the assy line cap on his former LOW
milage 70 Z............

Fantastic information here- especially with the pics.
I have some older Delco caps NIB on the shelf, will investigate what they are for fun. thanks guys!

----Part number 19719244 in a GM restoration box with just Delco-Remy and patent pending would be for what years and vehicle???....Bill S

"Patent Pending" cap is for 1968 and earlier for all GM models.

Some cap info in this older thread.
Posts 1,2,3,4,7,8,link in 10,14,18,19,46 and 47.
69 themed but may help some.

https://www.yenko.net/forum/showthread.php?t=179335

Chuck, I have many sources of information about the Delco-Remy distributor caps. In your case my information comes from my knowledge and a Camaro National Judge. Your question is answered in the Camaro Judging Manual.

Charley L was able to acquire these new pics from the current owner of
his LOW Milage 1970 LA built Z28...............showing the DELCO REMY
PATENT PENDING R Cap

Really like these pics.
Plug wires are an exact match a 3Q68 set of mine.

Have others also.
There are several different types of these but this is an exact match.

They will now go on her car and they are NOS.

Distributor from car

THANKS

IMHO this #2 post is the correct answer.
Post 12 backs it up

Stuff I posted is referencing a 69.
To finish the 69 story this is the cap that was on the dist pictured above.
No "R" as you can see.

The thread I linked started as a question about the originality of some parts that were removed to get car running after its long nap.
As you can see the cap was dismissed as replaced.
I bought the "R" one as it was supposed to be"correct".
Then conflicting info shows up later.

The no "R" cap is on car but we have the 'R" one [minus overspray" on the shelf.

Always looking for more clarity on stuff including this.

Pic 1 is the "R" cap we bought for it.
Pic 2 is the no "R" cap that was on dist.
Pic 3 is the coil that came with car
Pic 4 is date and purple ID paint on dist that came with car.

daveg I see your car is an early 1969 with a spark plug wire date of 3Q68. It is very possible that the distributor cap without the "R" is correct for your car. A lot of early 1969 cars had the "Patent Pending" non-R cap until the factory ran out of them.

Thanks for the reply.
The plug wires are not the ones that were with car.
Wires with car were replaced along with the Echlin points- condenser and 'E" rotor.

We got records with car but nothing about these items.
Hoses - clamps were changed also.
4/68 and 1/69 clamps have been a challenge.

We are trying to bring it back as far as possible.

I would think the cap is the factory one by date and condition, but some say nay.

Keeping everything that came with car just in case.