Copo or Yenko ? How to tell ?

[Brad]

I think that would have something to do with the transmission. Thanks.

[Rick H]

[ QUOTE ]
The VIN # is 124379n544864. The trans is an m22. It does not have anything stamped on the trim tag (no x-11 or x-44 codes) Thanks to all.

[/ QUOTE ]

To early for a Yenko.

Rick H.

[Jeff H]

Too early for a COPO. Does the M22 have the partial VIN stamped in it and does it match the car's VIN? If the car was an X11 or X44 code with a matching VIN M22 then it would be a COPO since that is the only solid lifter engine that would be put in the car. If the M22 is original, it sounds like it could be a Z28 but the cowl hood is probably not original to the car, that's too early for the cowl hood option.

[SuperNovaSS]

What I meant is why couldn't it be a M20 or 21.


Jason

[Jeff H]

It could be an M20 or M21 but that wouldn't be any proof of a COPO. The M22 would prove it's either a Z28, L78 396 or COPO. If his M22 matches, it could be a Z28 or L78 car.

[Rick H]

[ QUOTE ]
It could be an M20 or M21 but that wouldn't be any proof of a COPO. The M22 would prove it's either a Z28, L78 396 or COPO. If his M22 matches, it could be a Z28 or L78 car.

[/ QUOTE ]

So what you are saying is if the car has an M22 and the partial VIN matches then it's a possible Z/28, L78 or COPO?

I disagree. Just having an M22 doesn't prove anything. You could get an M20 or an M21 with any of those cars.
It takes more to prove these cars then just having a tranny match the VIN.

His VIN is to early for any COPO or Yenko so you can rule out those.

Rick H.

[Jeff H]

[ QUOTE ]
So what you are saying is if the car has an M22 and the partial VIN matches then it's a possible Z/28, L78 or COPO?

I disagree. Just having an M22 doesn't prove anything. You could get an M20 or an M21 with any of those cars.
It takes more to prove these cars then just having a tranny match the VIN.

His VIN is to early for any COPO or Yenko so you can rule out those.

Rick H.

[/ QUOTE ]

Why do you disagree? If the only engines you could get the M22 with were the solid lifter engines than an original VIN matching M22 would indicate the car had a 302, an L78 396/375 engine or an L72 427. But since the VIN is dated too early for the L72 427 then it would indicate the car is a Z28 or L78 SS396. Now we all know the M22 could be a restamp but that's not even part of the discussion. M20 or M21 has nothing to do with trying to prove an original COPO, Z28 or L78. Yes, your Z28, L78 or COPO could have an M20 or M21 but the M22 should prove what the car could be.

[CT Mark]

Rick & Jeff, I think you guys are saying the same thing but approaching it from different directions.

[Rick H]

[ QUOTE ]
Rick & Jeff, I think you guys are saying the same thing but approaching it from different directions.

[/ QUOTE ]

After rereading the thread, I think you are right. yicks!

Rick H.

[69LM1]

Does'nt someone here have a 69 LM1 (350ci pre x codes) with an M-22?

Rich