ok heres we go noise is very loud rumble clunking sound :cry: but only at idle upto around 1000 rpm then it goes away :1zhelp: no noise at 2000 25000 rpm (around were rod knock is ) the engine has 20 psi hot oil pressure @idle and 50 psi @3000rpm i checked the pulley and the starter moter to see if they were tight ,, all are ok any ideas guys this is a rebuild with 4k on it if you drove it you wouldnt no there was a problem till it idles ????