Ford 144-250 inline 6 high performance building

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To use the 302 intake valve springs, start with 12 stock 302 intake outer retainers.  Then take 12 stock 144-250ci 5/16" inner retainers and place them in the 302 outer retainers. Finally, you use the 144-250ci valve locks on the valve stem.  Now you have a 5/16" retainer to mate the 144-250ci valves to the 302 intake springs.
 
To use the 302 intake valve springs, start with 12 stock 302 intake outer retainers.  Then take 12 stock 144-250ci 5/16" inner retainers and place them in the 302 outer retainers. Finally, you use the 144-250ci valve locks on the valve stem.  Now you have a 5/16" retainer to mate the 144-250ci valves to the 302 intake springs.
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Thanks to vintage inlines there is also another option which is dual valve springs which report Specs: closed 110 lbs, open 260 lbs, inst hgt 1.68, duration up to 280. All other specs are user verified.
  
 
==Induction==
 
==Induction==

Revision as of 14:42, 9 May 2018

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