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SignUp Now!Quiky One said:Is the all aluminum block just 2006?
Thanks Jason
72firebird said:All the vortec 4.8L and 5.3Ls are aluminum blocks and the 6.0L and 8.1Ls are iron blocks. Pretty much everything is interchangeable between the 4.8, 5.3, 6.0, LS1, and LS6 though. Atleast I know the heads, cam, and intake are all the same basic design but some work a little better than others.