Need opinion...Original block or not? 87 CSX

[DOHCRT]

VIN 1B3BS44E9HN519080

The numbers on the block don't seem to correlate to the VIN. Is this conclusive proof this is not the original block?

[HSKR]

That would be my understanding

[bamman]

Yes, it would seem that way. The H would correlate to the 1987 model year and the G would correlate to the St. Louis #1 plant where Lebarons and Daytonas were made. The P bodies were made elsewhere.

The date code says this engine was built on April 15, 1987. The data plate and the sticker on the B pillar would probably differ from this date as well, meaning this engine is not original to the car.

[looneytuner]

Bummer. I gave away the original block to my 87 SL a couple weeks and and just about sxxx when I realized what I did. I have it back now. Of course these will probably never be that valuable. Or maybe someday people will realize these humble cars were pioneers in small block muscle cars!

[DOHCRT]

Since it needs a rebuild, I don't want to spend the time and effort on the non original engine. I should be able to buy a running common block for less than what it will cost to rebuild this one.