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Old 08-10-2007, 07:35 PM
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1985 Olds 98 motor swap

Anybody know what it takes to put a 1887 pontiac 3.8 into a 1985 olds 98 3.8 . The olds has a distributor and the pontiac does not. If no one know the answer could you tell me of a good forum that would,thanks

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Old 08-11-2007, 10:24 AM
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best I remember olds and pontiac have two diffrent bellhouseings
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Old 08-12-2007, 12:03 PM
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The bellhousings are the same. you can't mix RWD and FWD blocks, but any other questions can probably be answered at www.60degreev6.com
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Old 08-12-2007, 09:15 PM
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Not much help there any others,thanks
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Old 08-13-2007, 10:11 AM
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It will be more trouble than it is worth. You will need to do a bunch of wiring for the DIS(distributorless ignition system) used on the pontiac. The Pontiac uses a crank and cam sensor to tell the computer when to fire the coil packs. Why the reason for the motor change? The motors are the same minus the ignition systems and intakes. Also, the 3.8 is a traditional 90* motor unlike the 2.8, 3.1, 3100, 3400 motors. Hope some of this helps?
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Old 08-13-2007, 07:10 PM
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I was thinking about changing the 87 motor over to a distibutor. Would have to change the front cover and cam. Would this work?
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Old 08-15-2007, 11:09 AM
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Quote:
Originally Posted by DougMN
I was thinking about changing the 87 motor over to a distibutor. Would have to change the front cover and cam. Would this work?
The 3800 is the old 231 Buick V6. There have been several different versions with changes to the front cover, bellhousing bolt pattern, etc. Have you looked into swapping the computer and harness from the 87 into the 85? I'm guessing Olds used the same DIS system in 87.
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Old 08-15-2007, 11:10 AM
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Quote:
Originally Posted by curtis73
The bellhousings are the same. you can't mix RWD and FWD blocks, but any other questions can probably be answered at www.60degreev6.com
Unfortunately the 3800 is the Buick 90 degree V6.
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