Hello.
I am at the end of my rope.I hope that you can help.
I have a rebuilt 460,which I have done myself.I have been working on cars for about 25 years.
The problem is that the engine is making a ticking noise,when it is idling,but when it speeds up,it seems to go away.Frist thought it was a lifter.This problem seems to be on one cylinder.When the engine was rebuilt,the crank was reground.
What I have done is,
Checked the exhaust gasket.
Tried to use different push rod lenghts.
Replaced lifters and cam,as a set.
Different type of motor oil.
Replaced oil pump,with a high volume and checked rod bearing.
Replaced all valve springs.
All this,and the problem is still there.
Thanks for any help.