I have a crate 350 with a mild cam and roller rockers. I also have a tick on the top end. Sounds like a valve ticking. I've adjusted the valves ant it works for about ....10 miles and then the tick is back. I've retorqed the studs and even pulled the valve covers, started it, loosened eack on untile the slight tick, tightedthem untile it was gon and the the extra 1/4 turn. I've always done it this way and it's always worked. So am I missing something? or is something going wrong with the heads. Please help?!

 

Bad lifter?
Clyde

 

I only have a V6, 99, and it has had a tick for ever (maybe a little less than that) and we know it's in the head, probably a lifter, but cannot isolate it. Juat stays the same. I don;t know, been that way since 2003. Guess it just like to do that. Some thngs just aren;t worth hunting down. It sure is annoying though.

 

i would say lifter or valve spring

 

Never though of the valve spring. Thanks. No one else mentioned it either.

 

Thanks for all the help guys. One last thought. I thought that ifa lifter went badthan it woild stick. I recently changed my eld. performer intake to an air gap. I cycled the engine throught a complete cycle and Iwas watching the lifters. They all seemed to be moving freely. Am I missing something or do need some schooling on how a lifter works.?

 

if the car is hydraulic lifter, then the spring inside can crack/break,causing a tick

 

also could be if the heads have push in studs, the stud could have pulled out some, you can adjust the rocker and have it right, only to have tick come back if thats the case

 

They are hydraulic lifters. Sounds like I have to chanke the lifter. Is it better to try to find the bad on and change it. If so how do I find the bad one. Or should I just use it as an excuse to drop a bigger cam in it?

 

pull the intake, nothing needs to be done with the cam unless you want an excuse for yur wife, but replace all the lifters, not just one