ocp04

just wondering if theres any major disadvantages to one? i plan on running a car intake manifold and H2o pump for what its worth. i also plan on contacting PSI and seeing what they suggest. thanks joe

superdave84

The only disadvantage to running a 5.3 is that there are higher HP motors you could use instead. A 5.3 is a good running motor, nothing wrong with running one at all.

ocp04

oh yeah i knowthat, i was more worried about sensor, and or issues with wiring being the motor is set up for kilometers

frojoe

iTrader: (10)

Not sure how you mean this.. all LS motors are metric everything, the only difference between a Canadian and American donor vehicle is the range/unit system that is printed on the speedo/gauge cluster.. computer and sensors are all the same

tfi racing

iTrader: (2)

I'm as confused as everyone else,makes no difference which factory made your 5.3,they are pretty much identical thanks to modern automation and quality control.

i r teh noobz

iTrader: (4)

A 5.3 is a 5.3. There were slight differences in the O2S wiring from 01-03, but thats about it. Late model engines got 243 heads and a few other minor changes.

ocp04

thanks for the feedback this is what i was wondering. ill be ordering the motor on monday. thanks again

futureuser

iTrader: (1)

Some are made in Mexico, though.

psiconversion

iTrader: (5)

What year is the engine?

Jon
PSI

ocp04

i will double check with LKQ in the morning and ill be in contact with you Jon to order a harness and PCM