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Asked by Jun 11, 2016 at 03:12 PM about the 1999 Buick LeSabre

Question type: Maintenance & Repair

I have a 1999 Buick LeSabre engine 3800 series I
want to know if it will fit into a 2000 Buick LeSabre

1 Answer

98,445

As long as they are both 3800's, you may have to transfer a few external systems, like exhaust manifolds and maybe a few sensors but the block will fit right in.

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