Looks like the "A" and the "7" are transposed. I'd buy 1G4GJ117AHP402508 before 1G4GJ11A7HP402508. The 7th from the right is a checksum and could be numeric or alpha...
Carfax info, its a v-6 2 barrel, no turbo car here
VIN 1G4GJ11A7HP402508
Year/Make/Model: 1987 BUICK REGAL
Body Style: COUPE
Engine Type: 3.8L V6 2BL OHV
Manufactured In: UNITED STATES
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