Thread: [OH] 2006 LS4 5.3 Motor [FS][FT]

Originally Posted by Fivefingerdeathpunch

What do you mean the crank is different?

The LS4 block is the same size from 2005-2009.

If I had to guess I would assume he's talking about the fact that the crank reluctor wheel on an 07 up is 58x, while an 06 is 24x and the cam timing wheel is a 4x for an 07 up and a 1x on a 06 up.