Bonneville 3800's engine - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-23-2003, 06:50 PM   #1
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Default Bonneville 3800'* engine

Hello guys ! I just needed more information on this engine. Is it really good or so so ....
How many valves ?! How many HP ?! Sorry i dont know a thing in mechanic but i was just curious because i'll buy my pontiac bonneville 1994 tomorrow !

Thanks a lot for your help !
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Old 04-23-2003, 07:09 PM   #2
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The engine'* in the 94 and under are pretty bullet proof from what i hear. For the non supercharged engines they have 2 valves per cylinder, 170 horsees, 205 ft/bls of torque. for the supercharged they also have 2 valves per cylinder, 225 hp, 275 ft/lbs of torque. I see alot of people on here w/ milage over 100,000 and not complaining. There are also a few options for modding it too.

hope that helps.
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Old 04-23-2003, 07:24 PM   #3
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that'* correct..

check out the techinfo as for maintainance and changin the Tstat and adding tranny cooler to further increase the life of the mill.. welcome to the board... I especially love the amount of room to work around under the hood compared to some of the newer cars... there'* not much you can do without rippin out half the car or droppin the engine. Good choice.. hope to see more of you on this board.
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Old 04-23-2003, 08:01 PM   #4
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Thanks a lot 95naSTA for all the detailked specs for that engine ! It sure helps a lot ! I guess i didn't make a bad move by buying this car !!

Thanks Drifter420 for the warm welcome !!! I'm really glad that I found this forum !

Peace guys !!
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Old 04-24-2003, 12:18 AM   #5
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i still swear my 94 has either 195 or 205 hp...everyone tell'* me that'* impossible, but i swear that'* what it is......i really need to get it on a dyno., i'm talking stock here.
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Old 04-24-2003, 02:23 AM   #6
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Engine'* don't just accidentaly add 20 horses lol. That 170 HP is probably pushing you pretty nicely making you think you have more HP. Whats the HP of the Series 3 3800 N/A? i know with the */C it'* 260..but that'* all i know.
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Old 04-24-2003, 03:04 AM   #7
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If it had the Series 2 then you would be pushing 205 LOL, I love them to death. Yep my car has over 100,000 miles and runs great tranny and all.
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Old 04-24-2003, 12:58 PM   #8
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190,000 on my '93 SSEi and no problems hear.......
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Old 04-24-2003, 01:53 PM   #9
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Quote:
Originally Posted by BonneAlien
Engine'* don't just accidentaly add 20 horses lol. That 170 HP is probably pushing you pretty nicely making you think you have more HP. Whats the HP of the Series 3 3800 N/A? i know with the */C it'* 260..but that'* all i know.
I believe it is still 205.
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Old 04-24-2003, 06:43 PM   #10
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210000 miles and everything mechanical stil stock
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