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Re: Whats your impression of a 5.3L LS motor in these trucks?
All of the LSX based motors are great.....
Like mentioned if you can find a decent priced 5.3/4l60 I would go that route with very little thought. shoot even a 4.8 would be fun for a daily driver.
You should be able to find a 5.3/tranny and wiring harness/computer for less than 3K
6.0 became more popular/pricey and alot of people use those as replacements for there 5.3 while trying to go faster in there trucks/cars.
In my experience the 4.8,5.3 and 6.0 only differ about 15-20hp each as the cubes increase. Tq is the biggest difference between the 3.
My 03 regular cab 5.3 made 290 to the wheels with exhaust,intake,electric fan and programming. It ran pretty hard for a semi stock truck 14.3 @ 98
If you have a good running SBC I personally think its a waste of $$$ to swap out for a newer motor.If I had to buy a motor I would go with a modern FI set up.
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