top end

Just put a new motor in my vs after the last one had rod knock, new motor was fine before hand all I did was gaskets and quick look at lifters, was running ok when put in and now that I've put majority of it back together this noise has started, cheers for the help...

ITEMS: ecotec v6 top end Raptor v supercharger with all piping and bov, 70mm throttle body, 42lb injectors, msd coils, stage 2 crow cam, crow push rods, hand ported heads stock valves,home made reverse plenum, new l67 pistons 20over hyperutectic, new arp head studs, good set of lifters...