I am wanting to build a 430 out of a LS3 block (4.070x4.125). Is there anything special that I will need to run an LS3 block in my 2000 silverado? Does the LS3 require a special crankshaft, cam, timing setup, or anything special because it is a 4th generation engine rather than a 3rd generation?

 

For starters...a new relucter wheel on the crank and a harness extention for the cam sensor, also entention for the knock sensors since the LS3 has them on the side of the block.

 

or the module for the 50 to 24 reluctor wheel...

 

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