1SicV8

iTrader: (3)

so, last track pass i made i hear a funny noise come from the car after the car shifting into third as i passed the 1/4 mile mark, the noise sounds almost like a ticking, but really loud. or kinda like rap-rap-rap-rap.... constantly, but only while under throttle. i dont hear the noise at idle.

so far i checked the pushrods and rockers. and all were fine.

this weekend i plan to change/check the oil for metal shavings, etc. and possible check the lifters after that.

any ideas on what it might be or i should check?

car hasnt lost power, feels the same and oil Pressure is fine.

GoFast908Z

iTrader: (12)

and you said mine would go KABOOM first....

lol jk man.

Hope you figure it out soon!

418redz28

iTrader: (10)

my motor made that noise. it was very very bad. 2 broke rods and a broke piston, i couldnt belive that it even ran.

1SicV8

iTrader: (3)

HA! awesome. something to look forawrd to i guess ...

did ur car show any signs other then the noise. the car runs fine at the moment, no loss of power, etc

5.3LJimmy

iTrader: (10)

What brand of oil filter you running? My money's on fram.

blkbird

iTrader: (28)

Could be an exhaust leak....

1SicV8

iTrader: (3)

what does that have to do with anything? i actually have a mobil 1 oil filter....

i/we dont think so. its def sounding like a valvetrain issue

5.3LJimmy

iTrader: (10)

Because the fram filters restrict oil flow on ls1's, causing lifter tap at high rpms. Not your problem obviously. Are you running any additives in your oil? Lucas stabilizer will cause aeration and lifter tap also. It could be a worn pick-up tube o-ring as well. Just going off your description it sounds like lifter tap to me, and I have seen these 3 items cause that problem.

1SicV8

iTrader: (3)

gotcha. if lifter tap is super loud then it might be it.... lol

Schwanke Engines

iTrader: (1)

Just a thought, what about your converter bolts. I have seen where that can make strange noises.