Need some help

Looking to purchase a 78 vette Having issues with vin and body codes.
the vin is production seq. 412687
but body code is Pace car
can some one help me out?

412687 -if that is the last digits of the Vin it falls into the NON Pac car range 1Z87L8S400001 through 1Z87L8S440274
1Z87L8S900001 through 1Z87L8S906502 (Pace Car)   Big Al More numbers or info would be helpfullapasbigal2011-03-04 15:57:29

1Z87L8S412687 vin number
body codes 152  19U 47M
production date H14
from what I have found that month no regular vettes produced

also 2 of the original pace cars had the 400000 sequence
I cant find any more info on this car???

H14 would be the 14th of April, 1978, which would certainly put it right in the middle of Pacer production. The problem I see is the sequence number of 412687. There were only 6502 Pacers built, so how could you have  #12,687? Even for a regular production(non-Pacer) car, that VIN would have been built in December of '77.
I think someone has changed either the VIN plate, or the trim tag. I would suggest looking for the VIN stamp on the frame, to see what it is. I think this car has a checkered past...might be best to walk away from it....the VIN and the trim tag just do not jive.

but one of the org. pace cars had the VIN Pace Car #1 (Back Up Pace Car) Serial# 1Z8748S416658 (8Y047)and mine-
1Z87L8S412687
Even for a regular production(non-Pacer) car, that VIN would have been built in December of '77
how can the production seq. number be lower than the orig. back up pacer.
like is said /i have the chance to buy this car at a VERY GOOD price with a good title(not salvage)
could this vehicle be a predevelopment pacer for prom or photos.
where can I find the number in ()?
and I thank every one of you for your input

 You really need "Cilrah" to help you out!! He is our PC historian!!

here is some more interesting info:

1978 Regular Corvette Production

40,275 Coupes + 6,502 Pace Cars = 46,776 Total Production for 1978

Code	Month	Production	Sequence #
A	September '77	3,186	403186
B	October	4,215	407401
C	November	3,915	411316
D	December	3,379	414695
E	January '78	3,459	418154
F	February	4,349	422503
G	March	2,777	425280
H	April	0
I	May	3,553	428833
J	June	4,298	433131
K	July	3,717	436848
L	August '78	3,426	440274

1978 Corvette Pace Car Production

Code	Month	Production	Sequence #
G	March '78	1,675	901675
H	April	4,091	905766
I	May '78	736	906502

The original, actual, Indy used Pacers were definitely built before the production cars, no doubt about that. The design and specs had to be authorized by IMS before the cars could be selected as Official Pace Cars.
I'm by no means a Pacer specialist...that title indeed goes to Mark(cilrah). He has amassed tons of information on Pacers, including the actual cars used at Indy, and including pics of the actual Pacer's VIN plate.  Perhaps he will jump in and help....
I have a friend locally that owns on of the actual Parade Pacers, but I'm not sure what his VIN range is.

I asked Mark (Cilrah) to provide some input....