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  #18 (permalink)  
Old 03-15-2019, 03:07 PM
Tom Wells's Avatar
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Out of curiosity I wrote to PAC about the relative life expectancy of "race" vs "street" valve springs. Here's what I got back:

Quote:
You are correct. Springs designed for very aggressive camshaft profiles generally are high stressed springs resulting in a short lifespan. A spring designed for drag race shouldn’t be used in an endurance application or street use.
Tom
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