Chevy 3.5 v6/4T65E Swap (Page 3/12)
Will JUN 10, 12:20 PM
I saw that bolt was there. I can also see that the upper bolt is not present. What isn't clear from the photos is whether the upper HOLE is still in the block.
ericjon262 JUN 11, 09:57 PM

quote
Originally posted by Will:

I saw that bolt was there. I can also see that the upper bolt is not present. What isn't clear from the photos is whether the upper HOLE is still in the block.




The upper hole is not present on my LZ4.

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"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

cognita semper

Cajun JUN 17, 09:45 AM
I have taken delivery of my modified cradle. The mod was done to allow clearance for the AC compressor:


Here is a photo of the modified cradle painted.


Hopefully today the final front engine motor mount bracket will be ready for pickup?

[This message has been edited by Cajun (edited 06-17-2022).]

Cajun JUN 26, 11:00 AM
Finally received the modified front engine mount bracket from the shop a few days back. This is the first opportunity I have had to check mounting fitment. I have placed the modified Fiero 2.8 front motor mount backed and the modified Chevy 3.5 front motor mount bracket on the 3.5 for fitment purposes. Once I was happy I removed everything, waiting on locating a suitable transmission for the build. One that they don't try to extract too much blood from me.

Photos of the modified Fiero 2.8 front motor mount bracket:






Photo of the 3.5 v6 secondary front motor mount mating points:



Photos of the modified front motor mount brackets installed:

[This message has been edited by Cajun (edited 06-26-2022).]

Cajun JUN 26, 03:15 PM
Oops, forgot this photo...........

Side view photo of the Fiero 2.8 front motor mount bracket bolted to 2010 Chevy 3.5 v6:
Cajun JUL 01, 01:55 PM
I am having difficulties locating the correct wiring diagrams for the 2010 Chevy Impala with a 3.5 v6, specifically wire pinouts for the ECM & BCM.

Would any have detailed electrical diagrams/schematics for a 2010 Chevy Impala they are willing to share?


Thanks in advance for your assistance.........
Cajun JUL 08, 03:02 PM
I have taken care of the need for wiring information for the 2010 Chevy Impala 3.5 v6 engine swap!

I went ahead and purchased two (2) FSM's (Factory Service Manual) for the engine in question. The manuals are from two different sources so I am sure I have all the wiring diagrams/schematics I will require to complete the swap. I am currently in the process of printing the information I require for the wiring interface.
Cajun JUL 13, 05:23 PM
I have been working on building wiring harness(s) to interface the 3.5 to the 86GT wiring. One of my goals is to keep my digital instrument cluster. It took me over a year to get digital cluster to work with the Fiero wiring and data information.

I still need to make a run to the local Pull-a-Part to pick up a foot pedal assembly and wiring from a 2010 Impala.

I still have not located a reasonably priced 4T65E transmission with low miles on the clock. I am still looking. I did locate one but when I went to inspect it I noticed the oil pan was leaking. I don't want to inherit and additional issues, so I rejected that one.
Cajun JUL 23, 05:59 PM
I finally found some free time to pull the engine wiring harness out of my parts car, a 87GT.

What a ***** to pull especially in 100 degree heat. But it's done and complete.


I also have pulled the engine wiring harness from a 2010 Chevy Impala but from some reason I have not been successful in getting the photo to load. Will keep trying.


I am still in the process of drawing up an integrated wiring diagram to interface the Fiero wiring to the 2010 Chevy 3.5 v6 engine.
Cajun JUL 25, 10:29 AM
Was finally able to upload a photo of the 2010 Impala 3.5 v6 Engine wiring harness.....



Made a trip to the local Pull-a-Part and picked up an AC compressor for the 3.5. Now cleaning it up. Photos later