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1999 5.3l Engine Swap

skidatyl

By skidatyl
in Ask A GM Technician

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skidatyl New Member

skidatyl

Posted
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I was wondering if someone could tell me the differences between the 1999 5.3L and the newer ones. I have a 1999 Silverado Z71 with 180,000 miles on it and I am wanting to swap motors I cant seem to find a 99 motor with low miles and I have several newer motors available to me (2002-2006) at a real reasonable price with low miles on them. Any help here would be much appreciated

 

Thanks Bob

Zembonez Senior Enthusiast

Zembonez

Posted
Posted
I'm thinking you mean a long block assembly.strip down any year & swap over your stuff to it

I believe this is true. The long block should swap. Check sensors and any wiring before making the swap for interchangeability. You may well have to use your intake, exhaust manifolds, and oil pan.

skidatyl New Member

skidatyl

Posted
  • Author
Posted

Thanks for all the info thats what I think I will do just swap the long blocks out but it sure would be nice to put the whole engine in seeing they have about 30 more horespower than the 99 model

 

Thanks Bob

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