its a valve knock....hate to say it...but after those rpms my knock went away also...and before it it wasnt there...start you car up and see if it does it...mine did sometimes and didnt...if there is a squeel when u rev it like mine then goodluck.........like i said i HAD a valve knock then the engine blew up...so DONT drive itBIGTIMER_240 wrote:im not driving it no more its just sitting in the garage. my question is could i just replace all the bearings or wat should i do