LM4 compatability
#1
LM4 compatability
I have an 05 Buick Rainier with the 5.3l motor. I believe that it is the LM4. Can I interchange that motor with any of the other 5.3s? If so, what years? Would I probably have to put some of my old motor accessories on it?
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kp5002002 (01-09-2024)
#2
TECH Addict
iTrader: (15)
This should interchange. The LS4 front-drive is the problematic engine with the different bolt pattern. Make sure you match up your crank reluctor; I think this will be a 24x and so you'll want to stick with gen III (05-earlier) engines. 6.0s from those years are externally the same size and bolt pattern(just larger bore) so if you find a deal on one those it's worth the thought...basically bolts in.