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5.7 hemi valve spring

  1. Dodge Challenger Mechanical Problems and Questions
    I’ve recently acquired a 2012 challenger R/T I got from an auction. Car run except a loud mechanical ping that corresponds with the engine RPM. I’ve checked under the valve covers and noticed a lifter not lifting!?!? I’m looking for some guidance before I push it to the shop for repairs. I am...
  2. Challenger Performance Mods - Engine - 5.7L HEMI
    Looking to upgrade to a bigger cam in my challenger. I have narrowed down the cam choices and now looking at to upgrade the springs and push rods. My question is what springs are a good option? Also are shims needed and are any other mods to the valve train needed when upgrading to a bigger cam...