Is this valvetrain noise?
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I can't tell and the squeaking throws me off.
http://www.youtube.com/watch?v=NQNW94OUFTc
It's got good oil pressure.
I have a Vengeance racing vindicator cam (.605 .596 240/244), LS7's, 7.325" PR's, stock rocker arms, AFR 205's milled to 62ccs.
I never measured for lifter preload just went by what someone told me to get.
I can also push some of the lifters down by hand and the rest are solid. All parts have less than 5k miles.
Thanks
http://www.youtube.com/watch?v=NQNW94OUFTc
It's got good oil pressure.
I have a Vengeance racing vindicator cam (.605 .596 240/244), LS7's, 7.325" PR's, stock rocker arms, AFR 205's milled to 62ccs.
I never measured for lifter preload just went by what someone told me to get.
I can also push some of the lifters down by hand and the rest are solid. All parts have less than 5k miles.
Thanks
#11
TECH Addict
iTrader: (11)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I can't tell and the squeaking throws me off.
http://www.youtube.com/watch?v=NQNW94OUFTc
I never measured for lifter preload just went by what someone told me to get.
Thanks
http://www.youtube.com/watch?v=NQNW94OUFTc
I never measured for lifter preload just went by what someone told me to get.
Thanks
#12
On The Tree
Join Date: Aug 2007
Location: stockton california
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
hey I have the same noise and everything checks out fine. I bought a cam package from TR and they told me to get 7.425 push rods. Is this the right push rod length for a raptor cam, and new ls7 lifters. I always that since the new ls7 lifter are taller then stalk ls1 lifters that the push rods should be shorter. I too need help, dont want to start a whole new thread since we are on topic with this one. I hate the noise, so if I can make it any quieter I will. Thanks.
#13
On The Tree
Join Date: Aug 2007
Location: stockton california
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Again I do have double valve springs, I've read that this and the fast ramp rate of the cam will give me a NOT so quiet valve train. I want to get my car tuned already, don't want to take it apart again.
#14
TECH Addict
iTrader: (11)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I always that since the new ls7 lifter are taller then stalk ls1 lifters that the push rods should be shorter. I too need help, dont want to start a whole new thread since we are on topic with this one. I hate the noise, so if I can make it any quieter I will. Thanks.
#15
TECH Fanatic
Join Date: Jan 2010
Location: Euless Tx
Posts: 1,219
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
hey I have the same noise and everything checks out fine. I bought a cam package from TR and they told me to get 7.425 push rods. Is this the right push rod length for a raptor cam, and new ls7 lifters. I always that since the new ls7 lifter are taller then stalk ls1 lifters that the push rods should be shorter. I too need help, dont want to start a whole new thread since we are on topic with this one. I hate the noise, so if I can make it any quieter I will. Thanks.
#16
On The Tree
Join Date: Aug 2007
Location: stockton california
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Well after 25 miles into break in surprisingly my car started up on the first try this morning, and to my amaze my valvetrai. Got quieter but I can still hear it just not as bad. Maybe it just needs more break in time.
#18
TECH Fanatic
Join Date: Jan 2010
Location: Euless Tx
Posts: 1,219
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)