This is topic stock heads spring lift? in forum Tech Talk at Northern California Ford Owners  .


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Posted by modular (Member # 6599) on :
 
Anyone know what they are good up to?
 

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Posted by JohnB (Member # 969) on :
 
.480-.485...on a good day.
 

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Posted by AJBlackGT (Member # 3936) on :
 
They're trash and will float the valves with a stock cam...
 

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