OK guys here's whats going on. My 305 LG4 is making a light knocking noise. its coming from the passenger side of the motor in the back around the 6th and 8th piston. when the car is running and I'm standing in front of the car you can barley hear it, but when you stand on the passenger side of the car near the door you can berley hear it. its almost sounds like its coming for the exhaust pipe or something. i dont know. what could it be

 

Is this knock a 'clank' or a 'tick' sound? What does it sound like?

 

kinda like a hard ticking sounds

 

can anyone help, as i said, its kinda a hard ticking sounds. it kinda go's away when you bring the idel up around 2000 or abouv

 

sounds like it might be an exhaust leak... check to make sure the manifold bolts are tight.

 

Yup, sounds like an exhaust leak to me too.. check the exhaust manifolds for loose bolts, and meaybe change the manifold gaskets.

 

i really hope you all are right, ive been morred about that knocking sounds for a good minute. i need to install some hearders so i jues now whould be a good time to take the old crap off. thanks guys big time

 

my Iroc is knocking (rod) and when revved to 2000 or so it sounds horrible only when its warm and the oil is thinned out. But at idle its hardly noticible but know its time for the 350 build.

 

is it knocking or ticking?