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 Post subject: northstar swap?
PostPosted: Sat Dec 07, 2013 3:28 pm 
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Joined: Thu Jun 30, 2011 12:30 am
Posts: 187
Location: Plainwell, mi
Year and Trim: 1992 SE
Has anyone ever attempted this, and know if it's even possible? A nothstar v8 swap into a 92-99 style bonneville. I have this friend at wok who recently purchased a mid -late 90's cadillac with the northstar in it very cheap, it runs but needs brake work, and its been sitting for awhile. I know him well and he always goes through cars, and will probably give up on thisone by spring. I had a thought in my head when he said he was buying a v8 seville. would it be possible to swap this drivetrain into my 92 bonneville? the newer style bonnevilles were available with the northstar, and dimensionally I dont think they are too far different.

So has anyone ever done this before?

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 Post subject: Re: northstar swap?
PostPosted: Sat Dec 07, 2013 5:42 pm 
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You'd be swapping a motor known for its reliability and long life for an engine renown for issues and short life. IMHO, don't do it. You'd be way better off swapping something like a Series II S/C in...

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 Post subject: Re: northstar swap?
PostPosted: Sat Dec 07, 2013 7:47 pm 
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Location: Dearborn, MI
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I've seen some '86-89 LeSabres with the Northstar swap.

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 Post subject: Re: northstar swap?
PostPosted: Sat Dec 07, 2013 9:59 pm 
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Posts like an L36
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Joined: Wed May 02, 2012 3:29 pm
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Location: Lincoln, NE
Year and Trim: 1988 LE
2000 SSEi
Im sure its possible, but you would need custom work obviously. Also if you actually went through the trouble it would be a good idea to rebuild it first as there would be zero room to do repairs in the car. Remember you would be putting a V8 into a car designed for the V6.

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 Post subject: Re: northstar swap?
PostPosted: Sun Dec 08, 2013 1:22 pm 
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Location: Space Coast, or at least it used to be
Year and Trim: 03 SLE, 95 SE, 95 TS SE
I would not bother to swap in a Northstar, But its completely up to you..

The H and C Platforms from 85-96 are really the same car.. The largest V8 used in the C/H FWD platform was the caddy 4.9( 300 CI ) V8.. The car was designed to house the 3.8 and caddy line of Pushrod V8's... The early years were the 4.1's then the 4.5's and the last few years the 4.9..


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 Post subject: Re: northstar swap?
PostPosted: Sun Dec 08, 2013 3:43 pm 
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Joined: Wed May 02, 2012 3:29 pm
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Location: Lincoln, NE
Year and Trim: 1988 LE
2000 SSEi
Hmm didn't know they acrually designed for the caddy engines, i figured it was more like the GP where they just stuffed the LS4 into it

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1988 LE, Intercooled L67 loading......

2000 SSEi R.I.P. Dead now :( INTENSE FWI, polished LIM, P&P supercharger, custom radiator, standalone trans cooler, trans-go shift kit (donating to the 88)

2002 2500HD Silverado with the 8.1 Vortec and Alison tranny. Likes to eat GT Mustangs and lots of tires, and all while stock!


yourgrandma wrote:
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 Post subject: Re: northstar swap?
PostPosted: Mon Dec 09, 2013 1:56 pm 
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Joined: Thu Jun 30, 2011 12:30 am
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Location: Plainwell, mi
Year and Trim: 1992 SE
Thanx for all the helpfull input guys, of course I dont know if I'd be able to get the caddy from my friend at least dirt cheap, but since I still have this ssei sitting around I wanted to swap out the drivetrain from into my 92 se, and of course the thought of a v8 popped in my head as well. Of course if I did get this car for the drivetrain, it would all be fully rebuilt by me before going in the car. Does anyone know of any links or threads about someone who has done this to a 92-99 style bonne? I searhced google, but of course all i get in information about the newer style and northstars.

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 Post subject: Re: northstar swap?
PostPosted: Mon Dec 09, 2013 2:05 pm 
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Joined: Mon May 19, 2008 9:51 pm
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Location: Toronto, Canada
Year and Trim: 09 G8 GT
If you do decide to Northstar swap, stud the motor and regasket from top to bottom while it's out and you will be bulletproof for many years and many miles: http://www.northstarperformance.com/sgstuds2.php

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