I just got my engine back together and I have a noise that sounds like a lifter has collapsed. It is a 5.0 with an X cam with proform aluminum heads, harland sharp stud mounted rockers. Now here is a little background of what I have done. I put it together with FRPP lifters and had this noise. I called FRPP and the guy told me that it is normal to have noise with the X cam, but he said he would send me a couple new lifters, which he did. So I put the new lifters in where I thought the noise was coming from and it did not help. So I find in the Jegs catalog that they have a lifter that sounds like it will fix my problem a Lifter for a more aggressive camshaft. I buy them and put them in which I find out that the heads need to be removed to install. So I install them and the noise is actually worse now it seems that it is on the same side. I talked to couple people and they said they had similar problems and just put 20w50 oil in and it fixed it. Well 20w50 did not fix mine. Everything I bought was new, the block was the original from the car just machined. I hope this is enough information. I will accept any ideas I am out of my own.
