Where to get a new(used) engine in 2021 (Page 4/4)
MikesFirstFiero MAY 11, 11:19 AM
I wanted to do an LFX/6T70 swap and considered going to the junk yard. The parts are available but if you get their off the shelf ones the cost is higher and you would still need to source a harness and some modules. So lots of unknowns getting the engine and tranny to operate properly. They also have a pull-it-yourself area but that's a crapshoot as to the condition. I finally became a bidder with IAA which is similar to CoPart. IAA auctions off wrecked cars for insurance companies. In Washington state most auctions can be bid by individuals as well as dealers. This varies state-by-state and you may bot have this option in your location. Then also provide photos and a video of the car running, if it can. I bought a 2018 Impala with 59K miles that was said to be non-running. I looked at the photos and didn't see any damage near the engine & tranny. So I gambled.

It took 3 auctions before the insurance company accepted the high bid. They wanted $3800 for the car and the high bid was about $1500 the first two times. I did not place the winning bid in those auctions. On the third auction they finally decided that they needed to get rid of the car and they removed the reserve price and I was able to win the auction. I found that IAA was very easy to deal with and professional in their delivery of the car. It was in Seattle and I'm in Idaho so a friend picked it up and hauled it over to me.

Turned out to be a good gamble since it did run and I was able to verify there was nothing wrong with the drivetrain. They probably did not press the brake when starting or the battery was low. If the voltage is less than about 11 Volts it won't even try to start. I've spent a month ripping it apart and getting lots of parts to sell to help fund the swap. This isn't the most inexpensive solution since you pay the cost of the car, pay an $200 fee to be able to bid and pay the auction fees. So my $1525 car with all fees ended up being $2560. But I've got everything needed to make it run in the Fiero. Why so cheap for a 2018 car? Well it was said to not start and 5 of the 8 air bags were blown so a dismantler would not be very interested with the valuable bags dead.

Another thing to complicate recent GM swaps is the ECU also needs the Body Controller and maybe more since they all must have the same VIN programmed into each module. This is an anti-theft "feature" since 2018 and makes the electronics even more of a pain. But buying the whole car I have all of them and the complete harness too.
jwalker MAY 12, 02:54 PM
You could buy my 86'GT, I installed a crate (long block) engine and it only has about 10k miles on the engine, 93k miles on the Fiero.