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Old 10-25-2006, 07:31 PM   #1
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Default Powertrain in 1991 buick regal gs

I own a 1991 buick regal gs with the 3.8 in it. I was wondering if it has the same series engine and transmission as my 89 bonneville. Did buick use the vin c in 91. I can't check it right now because my wife has the car in Ohio.
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Old 10-25-2006, 10:17 PM   #2
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Default Re: Powertrain in 1991 buick regal gs

Quote:
Originally Posted by myfirstbonnie
I own a 1991 buick regal gs with the 3.8 in it. I was wondering if it has the same series engine and transmission as my 89 bonneville. Did buick use the vin c in 91. I can't check it right now because my wife has the car in Ohio.
I'm not 100% sure about the 89 Bonneville being a Vin "C" but the Buicks did use the Vin C in 91.
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Old 10-26-2006, 03:02 AM   #3
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yes, my 89 bonnie has the vin c. i was just wondering if the buick did too. will make t.*. a lot easier having a spare for everything.
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Old 12-05-2006, 05:05 PM   #4
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according to my info, in 91 the regal had the 3.8 vin L (l27 tuned port injection 3800)

so no it is not the same engine that is in your bonneville.
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Old 12-05-2006, 05:14 PM   #5
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Quote:
Originally Posted by DarkShadow
according to my info, in 91 the regal had the 3.8 vin L (l27 tuned port injection 3800)

so no it is not the same engine that is in your bonneville.
I believe you are correct...

The Vin will be the dead giveaway... The 8th didget should be an L for the L27 ( Tuned Port Injection 3800 )

The Vin C used in the 88-91 Bonnevilles were almost the same engine as the Tuned Port Injection 3800, with the one exception being that the Tuned Port had better breathing ability

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