vale springs
03-12-2015, 08:34 PM
#1
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vale springs i am sure this topic is getting old, but bear with me as this is my first ls build. i have an lm7 5.3 in witch i have a set of 243 heads off of a ls4 5.3 for my head up grade, the cam i am choosing is an lq9 cam, but their lies my question what would be a good valve spring upgrade to keep the valves from floating in the rpm band above 4500rpms
03-23-2015, 09:42 AM
#4
i am sure this topic is getting old, but bear with me as this is my first ls build. i have an lm7 5.3 in witch i have a set of 243 heads off of a ls4 5.3 for my head up grade, the cam i am choosing is an lq9 cam, but their lies my question what would be a good valve spring upgrade to keep the valves from floating in the rpm band above 4500rpms
He has a nice line of milder cams if your going to put new springs on anyway. Theres an article where they used a stage 2 or 3 and picked up 50RWHP off of it.
http://www.briantooleyracing.com/camshafts/
http://www.gm-efi.com/tech/btr-bumps...-finds-groove/