4.3 to 5.3 Swap

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01-27-2018, 05:24 PM

collinsworthcody

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4.3 to 5.3 Swap

I believe this has been posted already but the answers were unclear. I have a 4.3 in a '99 S10, I want to put in an '02 5.3. What are your opinions? Would a small block or a 5.7 be a better choice? If I go with the 5.3 what am I running into? I am looking at wiring harnesses now and would appreciate any feedback you have.

Last edited by collinsworthcody; 01-27-2018 at 05:24 PM. Reason: Typo