Northstar Engines and System Technical Discussion Discussion, Engine swap in Cadillac Engine Technical Discussion; I have a 1997 STS with a bad head gasket at 93k miles, I found a 4.6 Northstar from a ...
Automobile(s): 1997 ETC (GAVE TO STEPSON 2011), 2000 DTS (RIP)
FOUNTAIN HILLS, AZ
Re: Engine swap
zonie is correct - on my '97, I had my first engine replaced with a used engine, due to head gasket failure. When that engine's head gaskets failed, I learned about the proper fix on this forum and chose to repair the engine following advice from zonie and many others. Now I have an engine I can rely on.
A 94 has a few differences in the block, but could be made to work if the price is right. The AC compressor will have one bolt that won't line up and the motor mount on the passenger side will have to be modified as there is a bolt near the bottom of the front cover that is not there on the 94 block. I totally agree that fixing your engine is the way to go.......