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Why are valve springs necessary? What is their function? Is it possible to modify or improve them in any way to improve engine power? Today we will see all that and we will also learn some very fun formulas to calculate which are the perfect springs for your engine! Next: • Camshaft and timing - Prep... Previous: • What shape and size should the valves be? Home: • The 3 ways to increase power... ------------------------------------------ 0:00 Introduction 0:11 WARNING 0:23 Casual chat 0:56 Valve springs. 3:04 Valve spring sizing. 8:17 Improving valve springs.