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1991 Can you tell from VIN or engine number....

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Old 10-29-2018, 04:35 PM
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jeff33702
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Originally Posted by cobalt
This is your sticker?



So your car was a 5 speed converted to a tip being returned to a 5 speed. That is one for the threads. I don't think we have had one like this before.

So the next question is was this a complete engine tranny swap? It would appear so. If the engine is original you're fine if not then you have a potential concern if it was a full engine tranny swap from another car. It could have the old cylinders if that is the case. Good news is you can buy stock cylinders relatively cheap used and have them reworked to like new for a lot less than new.

I just had a set done.

sorry for the confusion - I purchased another engine/trans recently and that was the sticker from the donor car. My car is originally a tip.
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Old 11-01-2018, 08:09 PM
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Originally Posted by cscrogham
Late cars generally easy to ID with plastic engine intake runners, earlier aluminum.
Not completely true my MY C2 Coupe Tip build date Nov 9 1990 has the plastic intake but the early heads
Also to OP are you sure of your engine number the last 4 digits of mine are 0959 with the Nov 9 build date yours with an Oct 18 build date with the last 4 is 1950
Last edited by JohnK964; 11-01-2018 at 08:26 PM.
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Old 11-01-2018, 09:30 PM
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Originally Posted by jeff33702
62M51950

My vin nov 9 1990 build date
I’m just a bit confused on this as it doesn’t look like the op’s vin has the right amount of digits after the M
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Old 11-01-2018, 09:47 PM
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Code:
      DIGIT:                                           1 2 3   4 5 6 7 8

      EXAMPLE:                                         6 2 L   0 0 1 3 6
                                                       = = =   =========
                                                       ! ! !       !
      ENGINE TYPE (6 = 6-CYL.-ENGINE)------------------+ ! !       !
                                                         ! !       !
      ENGINE VERSION-------------------------------------+ !       !
                                                           !       !
      MODEL YEAR-------------------------------------------+       !
                                                                   !
      SERIAL NUMBER------------------------------------------------+
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Old 11-01-2018, 11:06 PM
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Originally Posted by JohnK964

Not completely true my MY C2 Coupe Tip build date Nov 9 1990 has the plastic intake but the early heads
Also to OP are you sure of your engine number the last 4 digits of mine are 0959 with the Nov 9 build date yours with an Oct 18 build date with the last 4 is 1950
We're talking about the serial number on the engine itself - not the VIN of the car
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Old 11-01-2018, 11:12 PM
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Originally Posted by jeff33702
We're talking about the serial number on the engine itself - not the VIN of the car
That dawned on me just a bit ago that’s what was bugging me. I’d have to look but I think my engine number and vin serial numbers are the same
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Old 11-01-2018, 11:21 PM
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Well 💩 I looked on the build sheet I got from Suncoast a few months ago and my engine serial number is different 🤪 So now. I just feel 🐑ish
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Old 11-01-2018, 11:24 PM
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Originally Posted by jeff33702
62M51950
my engine serial num 62M52363
seems like they built 413 Tips from Ops built on 10-18 and mine on 11-09 not important but interesting to me at least
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Old 11-02-2018, 02:04 AM
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I like it
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Old 11-06-2018, 08:30 AM
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Originally Posted by JohnK964



My vin nov 9 1990 build date
I’m just a bit confused on this as it doesn’t look like the op’s vin has the right amount of digits after the M
💩I have to change this I looked and was wrong my car has a build date of Nov 13 1990 not sure why I thought the 9th 😟
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Old 11-06-2018, 08:40 AM
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And for those of us with Nov '90 build dates, we really get to guess!

For what it's worth, my Nov 90 build had early heads (since updated), late plastic intake manifold, early rear brakes, and I'm still trying to figure out which rear suspension it has.
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Old 11-07-2018, 08:48 PM
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How do you recognize differences in rear suspension and what difference does it make? Thanks.
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Old 11-07-2018, 08:52 PM
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The difference is in the top mount it would be easier for you to find pictures of early and later ones my born on Nov13 tip car has the later version if that helps Ill look also for pictures for you
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Old 11-07-2018, 08:54 PM
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https://rennlist.com/forums/964-forum/838453-rear-shock-difference-89-90-and-91-94-a.html

try this link
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Old 11-07-2018, 10:37 PM
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Thanks for the link! I'll dig around a little. I'm still in "take it all in mode" since I picked up my basket case 91...so I have some time to read up on this before it goes under the knife.
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