Noisy Valvetrain
Thread Starter
Melting Slicks
Joined: Jul 2014
Posts: 2,125
Likes: 202
Noisy Valvetrain
Cammed LS3 with a blower just turned 6K miles. Ticking can be heard coming from the driver's side while idling. Mechanic who specializes in LS motors says they all do it and doesn't sound too bad but suggested checking the valve guides if it concerns me. Car runs great and pegs the oil pressure gauge on cold start (dry sump). Currently running 5w30 Redline. Ran 5w30 M1 previously and was doing it then too. Should I try thicker oil? Any input greatly appreciated. Thanks folks
Burning Brakes
Joined: Oct 2008
Posts: 1,184
Likes: 44
From: Orono, Ontario
Cammed LS3 with a blower just turned 6K miles. Ticking can be heard coming from the driver's side while idling. Mechanic who specializes in LS motors says they all do it and doesn't sound too bad but suggested checking the valve guides if it concerns me. Car runs great and pegs the oil pressure gauge on cold start (dry sump). Currently running 5w30 Redline. Ran 5w30 M1 previously and was doing it then too. Should I try thicker oil? Any input greatly appreciated. Thanks folks
Thread Starter
Melting Slicks
Joined: Jul 2014
Posts: 2,125
Likes: 202
Drifting
Joined: Dec 2012
Posts: 1,717
Likes: 28
From: O'Fallon IL
Most cam kits come with the 7.400 pushrods. Unless you have done any milling or gasket thickness change the provided ones work just fine. I used the 7.400 when I installed my cam and I must acknowledge that I didn't check with a pushrod lenght checker even though I own one.
One think that helped quiet down some the ticking on mine was switching to Rotella 5w-40 T6.
One think that helped quiet down some the ticking on mine was switching to Rotella 5w-40 T6.
Burning Brakes
Joined: Jul 2014
Posts: 757
Likes: 47
From: Tracy CA
Cammed Ls's are know for their noisy valve train. My cammed ls3 was noisy since the day i installed the cam. Now the motor is all stock including springs. Nice and quiet when I first got the motor now they are noisy.
Thread Starter
Melting Slicks
Joined: Jul 2014
Posts: 2,125
Likes: 202
This is what I'm being told. Cam and longtubes really amplify the noise.
