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1. 

   Joined: Mar 11, 2005
   Posts: 11,214

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   BJR

   Member

   from St Paul Minnesota

   Will the first series 303 Olds rocket valve covers fit a 371? Thanks, Brian

    

   BJR, Oct 22, 2025

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2. 

   Joined: Nov 22, 2005
   Posts: 9,020

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   HEATHEN

   Member

   from SIDNEY, NY

   I believe that the ends of the rocker shafts will not clear the valve covers without modification.

    

   HEATHEN, Oct 22, 2025

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   BJR and saltracer219 like this.
3. 

   Joined: Aug 29, 2002
   Posts: 16,945

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   Paul

   Editor

   from Lahar Valley, WA

   interference is with the longer shafts needed to work with added end shaft stands on the '57-'58 engines.
   shouldn't be an issue if the 324 style rocker****emblies are used.
   
   

    

   Paul, Oct 22, 2025

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