99' GMC 4.3 to 5.3 conversion

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Oct 15, 2008 | 12:24 PM

ducati748

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99' GMC 4.3 to 5.3 conversion

I am in need of some information of this swap. I am ready to go ahead with it. If anyone has any build simular or knows of any it would be greatly appricatied. I have a list of most parts need.
-engine mount- is this something i need to fab myself.
-wiring harness- i read that you can plug a 5.3 or 6.0 into a 4.3 truck? Not sure if this is correct.
-Radiator- I heard the 4.3 and 5.3 are the same is this correct.
-Fuel Pump- Read that you can use the same but a larger one would help.
I looking to put a cam and build up the engine a bit. What is a healthy cam to use but still be drivable. What else do i need to change along with the cam. The engine i am using is an 05' 5.3 with only 10,000 miles.

If anyone had any saved post or and other places that would have more info please let me know. I'm gonna do a very detailed build so i can be shared for everyone
Thanks
Steve