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The green paint on the springs indicates that yes those are the GMPP springs for the LT4 hot cam kit. To be safe I would take to machine shop and have them give you the specs of the springs and tell them the specs of the cam. Remember the lift is only .525/.525 with 1.6 ratio rockers and if you are only going to run 1.5's its .492/.492. They will need to know that. Hope that helps.
 
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