This is topic Explorer GT40 head question in forum Tech Talk at Northern California Ford Owners  .


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Posted by 87_ssp (Member # 11152) on :
 
I picked some up this weekend and was wondering what was a good valve spring upgrade ? I came across these http://www.alexsparts.com/sb-ford-gt40-drop-in-valve-springs-kit-hyd-roller-580-lift/ , seen a lot of people recommend them , was gonna go with tfs1 cam . Any input on a good direction is appreciated thanks
 

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Posted by Martinna (Member # 12493) on :
 
The Trick Flow Valve Spring kit TFS-2500100 is what you want. Take your time shimming them.
 

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