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Old 07-18-2003, 11:18 AM
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Fit turbo on my cutlass

Hi,
I have a 3.8L 1985 cutlass supreme.
On ebay i found a turbo assembly for a buick grand national. It Comes with turbo, intake manifold, and four barrel intake. Buick GNs also had a 3.8L

Would this bolt on to my 3.8L cutlass?

If not would I be able to modify it so it could?

Thanks any input would be great.

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Old 07-18-2003, 11:52 AM
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Not too sure if they are direct fit, but anything's possible. If anything, the manifolds don't match. You should be able to use the rest, and get a manifold. But this is coming from someone that's never seen it, hopefully I'm not steering you too far off. Good luck...
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Old 07-18-2003, 12:06 PM
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I'm not 100% sure but i think buick makes the 3.8L motor that would be in my cutlass.
Does anyone Know??
And would that make a differance?
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Old 07-19-2003, 09:55 AM
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I'm relatively certain it's a Buick engine, but it's not the same as the Turbo motor, which has a stronger bottom end. You can find a lot of good info on the Turbo cars at www.gnttype.org
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Old 09-03-2003, 06:28 AM
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Not a "turbo" motor but not far off. The motor itself should be a "109" block (casting number ends in ...109) and the crankshaft MUST be a turbo crank. The turbo cranks have rolled fillets on the mains and rods for additional strength. Now, if you really want to turbo your Cutlass, look for a COMPLETE '86 or '87 Buick Grand National or T-Type drivetrain. Motor, tranny (BRF valve body is specific to turbo cars) wiring harness, intercooler, .... Don't bother with the older non-intercooled "hot air " cars. Nice if you've got one but if your building one step up to the intercooled set up like so many "hot air" guys do anyway.

www.gnttype.org as mentioned above is a good source for all sorts of general Turbo Buick knowledge. More specific to swaps and hybrids is:
www.turbobuicks.com

and the "BIG BOARD"
www.turbobuick.com

Good luck,
Richard
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Old 09-03-2003, 01:58 PM
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With the amount of boost coming out of the stock turbo your bottom end should be able to handle it. It would be nice to have a turbo crank in, but imo it's not absoultly necessary
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