Valvetrain?
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Instructor
Joined: Nov 2004
Posts: 107
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Valvetrain?
I know that the valvetrain is the LS1's weak spot, does anyone know of a kit that or product that will make it stronger?
If not, what parts do I need to replace to make it stronger?
About how much will it cost?
And, how much horsepower do you think I'll gain with an upgraded valvetrain?
Thanks in advance!
If not, what parts do I need to replace to make it stronger?
About how much will it cost?
And, how much horsepower do you think I'll gain with an upgraded valvetrain?
Thanks in advance!
Burning Brakes
Joined: Oct 2002
Posts: 797
Likes: 1
From: Sunny Earthquake Country, USA On the Left Coast (which is becoming more Right!)
Mods?...
Originally Posted by StoCK
I know that the valvetrain is the LS1's weak spot, does anyone know of a kit that or product that will make it stronger?
If not, what parts do I need to replace to make it stronger?
About how much will it cost?
And, how much horsepower do you think I'll gain with an upgraded valvetrain?
Thanks in advance!
If not, what parts do I need to replace to make it stronger?
About how much will it cost?
And, how much horsepower do you think I'll gain with an upgraded valvetrain?
Thanks in advance!
If you get a cam, also get the manufacturers coordinated cam kit which will consist of springs , retainers, keepers, correct length pushrods, and presumably new roller followers (which may not be necessary on a newer engine with less than radical cam). Most street/strip type cams use the existing rockers if the're in good shape or stock replacement rockers if worn.
The hp increase for a cam only on a stock engine would be in the range of 15 to 40 HP. As other mods are done the increment of increased HP from a cam will increase.
If you stay under 6500 rpm you should be ok.
Don't modify your system with high ratio rockers and bits and pieces here and there.
Use a complete kit purposely designed by a cam manufacturer for your type of intended use.
And of course, as with any significant mod, a good dyno tune by a knowledgeable tuner.
Roy
