Valvetrain noise..
Valvetrain noise.. What do you guys think the most likely cause of valvtrain noise would be? Its more of a hollow clattering sound. Mostly heard at idle, and about 2100. The car will rip 6000+ without any trouble, but the noise sounds like crap and it driving me crazy. I thought about some aftermarket roller rockers and check the pushrods while I was there. I dont have the ambition to dig lifter deep at this point. Any ideas?...Im always waiting for something to fly apart.
Mine and my buddys makes that same sound. Kinda like it's coming from the intake. From what I hear it's because of the harsh lobes on the cam slamming them open and dropping them shut.
Same here. Lifters replaced at 25,000 miles under warranty, didn't help.
Mine sounds loud under the car but sounds like it's coming from under the intake.
Sounds like total ****.
I've run it hard at the track since, now it has almost 39,000 on it, the noise never got worse.
It's definetly a valvetrain noise.
Mine sounds loud under the car but sounds like it's coming from under the intake.
Sounds like total ****.
I've run it hard at the track since, now it has almost 39,000 on it, the noise never got worse.
It's definetly a valvetrain noise.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Most valvetrain noise on a healthy motor is attributed to too short a pushrod. (ie: too light a preload)
Two things tobe done on a motor especialy if heads have been added.
1- Check your geometry > Wipe pattern on valve tip is well centered
2- Check preload to be within lifter manufacturer margins
Two things tobe done on a motor especialy if heads have been added.
1- Check your geometry > Wipe pattern on valve tip is well centered
2- Check preload to be within lifter manufacturer margins
Trending Topics
I have a clacking type sound and assumed it was valve train related. I did some scope listening and could not locate the noise in either valve cover. Actually the injectors produced more noise than I heard from the valve covers. At this point, I am guessing it is the PS pump and I am living with it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo I just used a scope and on each valvecover I just hear comotion, no clatter to speak of. When put to the runners on either side of the intake manifold it is much more audible clatter?...What would I be hearing on the intake?.. 
Originally Posted by PREDATOR-Z
Most valvetrain noise on a healthy motor is attributed to too short a pushrod. (ie: too light a preload)
Originally Posted by 8a8mfh
Was this problem common or even found on stock engines with no internal mods?
