Collapsed lifter? I really need some advice!

tmoss said:

Actually, the 2.272" is the factory spec length.

Click to expand...

I thought I remember reading that 6.250" was the stock length I do know for a fact that Tom knows more about these cars than I do though!


This is interesting....I wonder why mine ranged from 6.246" to 6.250"(measured with a Mitutoyo digital caliper). They aren't bent at all.


Guess its time to order up a new set of pushrods then.

Well guys, I put the longer pushrods in and it still makes the EXACT same noises. I'm at the end of my fuse with this project.

I really appreciate all the advice i've gotten from everyone but I just dont know what to do anymore. I've worked on this thing every night for a month and a half and am still in the same spot I was then.

This engine made NO noise before I put the thumper heads/tmoss intake on, I just have no idea where the noise is coming from, I cant seem to isolate it at all with the stethescope. Everywhere I listen I just hear ticking. Also, my valve stem tips are starting to show signs of a wear pattern on them from the roller rocker tip. What the hell is up with that?

I'm fed up with this thing. I think I pretty much need a miracle.

Thanks for the advice, Tom. My rockers do have some side to side play - I'll be running the engine with the valve covers off today to check this more thoroughly. Maybe this is the source of the noise? I don't have guide plates, however (pedestal mounts).