Well here it is guy's.After 6 time's taken apart the f....n engine,this is what we found.#1,lifter collapsed,causing retaining spring tobe lost,untill pulling #1/8 piston.What we found was spring got lodged between piston #8 under oil ring causing minor damage to piston.We debure'd.Next,we found roller rocker's binded,so we grinded bottom and fix'ed.Put together engine again and found knock still there.F...n rod stretched.Overreved.We got the engine up to 6100 rpm's for 50 sec's,get that?.So #1/8 rod's need to be replaced this weekend.God 455's I've had enough.$7200 into so far,so much for beleiving. burningm