Engine Vin Codes 
Description Engine Vin code description for 87-03 Bonnevilles
Uploader jr's3800
Date Wed Feb 01, 2006 2:42 pm
Type Data
Rating 9/10, 2 vote(s)
Original Author Willwren
Applicable Models All
Information Source Unknown
Engine Codes (VIN)

To determine which engine you have, look at the Vin number on your car... The engine code will be the 8th didget of your vin number..

All engines are manufactured by Buick.
All engines are 3.8 liter, 231 cubic inch (3786cc) 6 cylinder. Firing order is
1-6-5-4-3-2
MFI=Multi-port electronic Fuel Injection
SFI=Sequential Fuel Injection
SC=Supercharged

Vin........fuel...........years.........hp..........tq.......Series

3______SFI________87/88___150_____210
C______MFI_______88-91___165_____220
L______MFI_______92-94___170_____225___I
1______SFI(sc)____92-93___205_____260___I
K______MFI_______95-03___205_____230___II
1______SFI(sc)____94-95___225_____275___I
1______SFI(sc)____96-03___240_____280___II

Supercharged Vin 1 engines from 92-95 (Series I) used the Eaton M62 Supercharger.

Vin 1 engines from 96-03 used the Eaton M90 Supercharger.

A Small note, All of the 3800's regaurdless of being labeled MFI or SFI all use the Sequential Fuel Injection system..

  

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