I've searched but couldn't find an answer so please bear with me.
Is there any big advantage or disadvantage betweeen a2000 5.3 engine and a '99 5.7? Ive got an opportunity to buy either, and both have 130K miles and both are the same price. I know the obvious difference in looks, etc.
I'mconcerned about reliabilty, of one over the other. Both are in 4x4 1500s and, naturally, the 2000 has the tow haul trans. I don't know if that should be a concern.
Thanks for any help or info you can give me.

 

Ive heard 5.3 is better but thats from guys with allot of mods. You know what trans is in the 5.7 if it the same than id go for the one that gets better gas mileage. The tow haul is a great thing if you tow.

 

the 5.3 is better...much better mpg and less prone to leaks....much better fuel design,etc

 

I agree a hundred percent with Argon the 5.3 is very reliable and the heads are much better then the 5.7 design

 

Thanks every one for your answers. I appreciate it and will deferr to you opinions an knowledge. Since this is my first GM veh in MANY years, after being a Blue Oval guy, my GM knowledge stopped with the points/condensor distributors. lol.
The 5.7 is an extended cab short bed, which I like, and the 5.3 is a std cab long bed, but I'm more interested in the reliability.

Thanks again

 

well i got a 97 with a 5.7 and my moms got a 2000 with a 5.3 and her truck is all around better but she gots rust and i dont lol
i would get the 2000 it has the 327 and them motors are great my next truck well have a 327 or i might put one in this truck i got if i blow the motor and the 5.3 we have drove it all around the country and it is still going strong but if u think the 5.7 is a better buy then get it i got nothing against it besides gas mileage sucks

 

i would definatly go with the 5.3. i have a 5.3 now and i had a 96 5.7 as my previous truck. the 5.3 is better milage and i know many ppl with a 5.3 and over 250k + .

 

I go with 5.3 in terms of reliability and fuel economy.