Question about a Cadillac Northstar Motor

Hi Fellow Scrappers
Well since the price of mixed scrap has been down I have not taken any mixed to the yard. I have been focusing on selling parts and preparing my metals. The question is I was able to get a 1997 Northstar motor. I have it listed how ever I was told that there was two different motors for that year. I guy said to check the vin and on the eith digit should be a y or a 9. Since I'm not that knowledgeable about that motor any help is needed. The car along with the title has been taken to the yard. Is there a vin on the motor. If so where would I look.
Thanks
Cedric

Some times there's a vin on it but don't kno where. There should be a stamp on the block somewhere identifying the engine

According to the notes in the Hollander Manual they are interchangeable
Seems only difference is the Cam shafts
Vin 9 has a bigger Cam / Higher output >> Hollander number 300-06146B
DEVILLE 96-99 (8-279, 4.6L), VIN "9"
ELDORADO 96-99 (4.6L, 8-279), VIN 9
SEVILLE 96-97 (4.6L, 8-279), VIN 9

Cadillac 4.6L (8-279).
Northstar System.
Transverse mounted engine.
Starter is mounted underneath the intake manifold.
Change induction, exhaust & electrical systems as necessary.
Crankshaft pos. sensor.
|A| thru |F| interchange as shown in notes.
Ident: JBB '98
Ident: KBB '99
VIN "9", option L37.
High output.
S.F.I.
|A| fits; but has standard performance camshafts.
|C| fits; but has standard performance camshafts and intregal engine & accessories mounting bosses on block.
|D| fits; but has integral engine & accessories mounting bosses on block.
|E| fits by changing intake manifold and knock sensor, but has standard performance camshafts.
|F| fits by changing intake manifold and knock sensor.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>
VIN Y >> Hollander 300-06146A
DEVILLE 96-99 (8-279, 4.6L), VIN "Y"
ELDORADO 96-99 (4.6L, 8-279), VIN Y
SEVILLE 96-97 (4.6L, 8-279), VIN Y

Cadillac 4.6L (8-279).
Northstar System.
Transverse mounted engine.
Starter is mounted underneath the intake manifold.
Change induction, exhaust & electrical systems as necessary.
Crankshaft pos. sensor.
|A| thru |F| interchange as shown in notes.
Ident: JCA '96
Ident: JCB '98
Ident: JDA '96
Ident: JDB '98
Ident: JMA '98
Ident: KCA '97 & '99
Ident: KCB '99
Ident: KDA '97 & '99
Ident: KDB '99
Ident: KMA '99
Ident: KMB '99
VIN "Y", option LD8.
S.F.I.
|B| fits; but has high performance camshafts.
|C| fits; but has integral engine & accessories mounting bosses on block.
|D| fits; but has high performance camshafts and intregal engine & accessories mounting bosses on block.
|E| fits by changing intake manifold and knock sensor.
|F| fits by changing intake manifold and knock sensor, but has high performance camshafts.

Thanks JohnC4x4. I will look for the vin. I have a guy interested in buying the motor and I need to move it.