Alright, so this is my first post. I’m looking to swap the ls376/480 from crate engine depot into my 2008 4.8 silverado crew cab as far as i can tell the ls3 will drop in no problem, but im not sure about all the accessories,brackets, sensors, wire harness , and ECU from my 4.8 would fit the ls3 ... An other thing that im not sure is the ls3 intake manifold I've heard that an( L92 intake manifold , oil pan,, and water pump )would be required to make this swap possible .. What other parts or modifications would be need it ???
* All details and information are welcomed *


Thanks,

 

All the F body or corvette accessories are different than the truck. The truck water pump may interfere with your TB. Check out Dirty Dingo they make some swap parts.

 

Just swap all your accessories from the 4.8 to the ls3 and get a complete l92 intake. Done. I have done this swap but changed from a 5.3 and no problems what so ever. Im also assuming your truck is a 08 meaning you have the right relucter wheel already and being so all your sensors will play nice. Very straightforward swap shouldn't run into any issues. Your ecm wont have any problems either, only thing im not sure about is if the vvt sensor on the cam needs power or what to it. My truck was a 2011 vvt 5.3 so i had no issues everything was plug and play. Im sure someone will chime in on that...

 

So the ls3 have VVT ?? I thought the l92 had the vvt not the ls3.

 

Oh yeah true forgot about that... **** then no worries straight swap. Get that motor in and start burning up tires! Lol