engine swap 3.4L with a 3.1L

marine90 · 03-26-2007, 11:06 AM

I have a 95 Old Cutlass Supreme with a 3.1L engine that was rebuilt and has only 50,000 miles. body is not in to good of shape. I also have a 96 Olds Cutlass Supreme with a tired 3.4L and 200,000 miles and a blown head gasket. I want to remove to 3.4 out of the 96 and install my 3.1L. Is it as simple as remove and replace or is there cpu connections or something else that I may not have thought of.

tobz · 04-03-2007, 09:12 AM

I am also interested in a swap, although in reverse from the original poster.

I have a 1996 Olds Cutlass Supreme with the 3.1L. I would like to build-up a 3.4L and swap that into my car.

Anyone with experience on this?

03-26-2007, 11:06 AM	#1 (permalink)
marine90 Junior Member Join Date: Mar 2007 Posts: 1	engine swap 3.4L with a 3.1L I have a 95 Old Cutlass Supreme with a 3.1L engine that was rebuilt and has only 50,000 miles. body is not in to good of shape. I also have a 96 Olds Cutlass Supreme with a tired 3.4L and 200,000 miles and a blown head gasket. I want to remove to 3.4 out of the 96 and install my 3.1L. Is it as simple as remove and replace or is there cpu connections or something else that I may not have thought of.

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04-03-2007, 09:12 AM	#2 (permalink)
tobz Junior Member Join Date: Apr 2007 Posts: 3	I am also interested in a swap, although in reverse from the original poster. I have a 1996 Olds Cutlass Supreme with the 3.1L. I would like to build-up a 3.4L and swap that into my car. Anyone with experience on this?