Matching Numbers?
#1
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I am rebuilding the engine of my 1999 911 and believe it is not the original engine. I have been trying to decipher the engine number to compare to the VIN to see if it is the original one or a later M96 engine. The Porsche engine number M96/01AT66X963 and the car's VIN is: WP0CA2996XS655575. I have deciphered the car's VIN but what I have found on the engine number doesn't match the sequence I have. Any help would be appreciated.
#3
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Thanks @DBJoe996 . I assume the subsequent alphanumeric sequence is irrelevant? I know while we were rebuilding it, the crankshaft for a 1999 996 engine did not match what was in it and would not replace the damaged one. We had to get a different one.
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Speaking of matching numbers, are we at the level now that a 996 with the correct matching engine is worth more?
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#6
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I don't really care whether my number match.
The rest of the car has been modified for my taste, and I won't be putting it back to original.
If my kids, who will inherit it, want to do that, then at least most parts I've remove/changed are stored.
But really who cares....enjoy the car and don't worry about this matches that.
I have told my kids my car is for driving and enjoying, not parking and "saving it in case it might someday become worth a lot of money."
Invest your savings well and don't look at cars as investments.
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golock911 (05-03-2021)
#7
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How would one even know if the motor came with the original car?
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#8
Drifting
#9
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A few years ago someone got a COA for 996 that didn't even list the engine ser# , rumor was that so many 996 had replacement engines that Porsche stopped putting it on the COA's. If that's the case, when/if the 996's really become "collectable" , low mileage with matching DME and engine/trans ser #'s will be the key.....
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islaTurbine (05-03-2021)
#10
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IMHO, not yet.
I don't really care whether my number match.
The rest of the car has been modified for my taste, and I won't be putting it back to original.
If my kids, who will inherit it, want to do that, then at least most parts I've remove/changed are stored.
But really who cares....enjoy the car and don't worry about this matches that.
I have told my kids my car is for driving and enjoying, not parking and "savi76ng it in case it might someday become worth a lot of money."
Invest your savings well and don't look at cars as investments.
I don't really care whether my number match.
The rest of the car has been modified for my taste, and I won't be putting it back to original.
If my kids, who will inherit it, want to do that, then at least most parts I've remove/changed are stored.
But really who cares....enjoy the car and don't worry about this matches that.
I have told my kids my car is for driving and enjoying, not parking and "savi76ng it in case it might someday become worth a lot of money."
Invest your savings well and don't look at cars as investments.
![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
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jobyt (05-03-2021)
#11
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To be clear, my remark was tongue in cheek... it’s actually refreshing to not worry about this so much! Fully agree that a car shouldn’t be an investment. I drive them.