valvetrain noise
Thread Starter
Instructor
Joined: Nov 2008
Posts: 178
Likes: 0
From: Charleston S.C.
valvetrain noise
Well I installed the cam and dual springs in my Z.went with the torquer 2 and dual valve springs also have lg streets the valvetrain noise is loud.Its louder than my ls2 what can or do I need to do?by the way i did not mess with the heads other than the springs and pushrods same stock rockers also
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Cams that are described as having “aggressive ramp rates” will make more noise on valve closing compared to a stock cam. That being said, did you check to make sure your new springs are not going into coil bind with the new cam?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
You really should measure for pushrods. Most just put in the 7.400" without measuring, but each car is different. The lifters are fairly forgiving and you may get away with it, but best to measure and be sure of the length required.
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Racer
Joined: Oct 2004
Posts: 480
Likes: 16
From: chicago il
Im in the same boat!!! its driving me crazy i cant stand it lol I ended up having .050 to long of pushrods changed them out and no change
Im thinking about putting some aftermarket rockers on but it really sounds like lifters to me
Drifting
Joined: Jan 2004
Posts: 1,419
Likes: 6
From: Alamosa CO
When I did the original H/C package for my 346, the valve train got noticeably louder, and yes, I did measure for the correct length pushrods and check for coil bind. Finally went to Yella Terra ultralight roller rockers and things quieted down a bunch. I'm now running the Yella's in my LS3 stroker with a much bigger cam and the valve train is pretty quiet. Actually quieter than my 346 was with the YT's.
HTH
Jimbo
HTH
Jimbo
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
When I did the original H/C package for my 346, the valve train got noticeably louder, and yes, I did measure for the correct length pushrods and check for coil bind. Finally went to Yella Terra ultralight roller rockers and things quieted down a bunch. I'm now running the Yella's in my LS3 stroker with a much bigger cam and the valve train is pretty quiet. Actually quieter than my 346 was with the YT's.
HTH
Jimbo
HTH
Jimbo
Thread Starter
Instructor
Joined: Nov 2008
Posts: 178
Likes: 0
From: Charleston S.C.
i talked to the guys at texas speed today they said 98% of the tqr 2 cam swaps use the 7.40 length push rods.I think I'll measure it and replace the rockers with the yella terra
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I installed EG's Whiplash Cam and installed the recommended 7.40 push rods. Very pleased with the performance and NO NOISE. 
Well,,there will always be some noise with a cam as aggressive as the one I'm running but, with respect to the 610 lift, the valve train is very quiet!!!
Well,,there will always be some noise with a cam as aggressive as the one I'm running but, with respect to the 610 lift, the valve train is very quiet!!!
