Virgin Ls1 block and good Ls1 pistons, and uncut good crank.  $500.  Add your choose of rod and you have a $2000 Ls1.  Will include a set of truck heads, lifters, oil pump, truck pan and a few extras for full asking   
4G63 head- good used-  $300  Evo 8 Valve springs- $80   
26x9 Hosier slicks with Mickey Thompson tubes.  bought new in spring 16. Used for 6 track passes minimal burnout.  Look new.  $200   
RX-7 NA axles.  $30 a pair have 3 pairs   
RX-7 Turbo 2 Diff- good Diff only $250