Engine swap

Asked by Mar 21, 2017 at 07:51 AM about the 1999 Chevrolet C/K 3500 Ext. Cab 4WD

Question type: Maintenance & Repair

2 Answers

I have a 1999 Chevy k3500 engine went I'm putting in a 1985 that I got cheep will it work in my truck

74,755

Its going to be a lot of work, you should have the transmission for that year also, 1999, since everything is controlled by a OBDII computer, and transmission module. The '85 has a OBD1 computer running the '85 engine & trans. Computer, wiring harness, and transmission control module all would need to be switched out to run the '99.

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