Engine swap
June 29th, 2014, 7:49 AM
#2
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Mattymott Welcome to the forum...
Both years used the 350 or 5.7 engine so its likely the motor mounts are in the correct place but there is a big difference in the electronic controls...
I'd say the mounts are going to be the biggest concern, but if you can weld that can be overcome too...
Both years used the 350 or 5.7 engine so its likely the motor mounts are in the correct place but there is a big difference in the electronic controls...
I'd say the mounts are going to be the biggest concern, but if you can weld that can be overcome too...
June 29th, 2014, 8:18 AM
#3
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On the whole, I don't think you'll have any insurmountable problems.
I just put a 1999 Tahoe 350 in my 1996 K2500 GMC Suburban. Everything bolted up.
GMC/Chevy has always had a good reputation for parts interchangeability over the years.
Good luck.
I just put a 1999 Tahoe 350 in my 1996 K2500 GMC Suburban. Everything bolted up.
GMC/Chevy has always had a good reputation for parts interchangeability over the years.
Good luck.
June 30th, 2014, 10:57 PM
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same block but the fuel injection system is different, youd have to swap the heads along with the intake /fuel injection. i dont think you can get the new computer to run the old engine, the 99 system is far advanced compared to the 91
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