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NHRA Tech Department makes updates to the engine blueprint specifications

March 31, 2021

 

The NHRA Technical Department recently made changes to the blueprint specifications.

                       

 

 

                    Chev 14-15 427/450 piston flat with notches

 

                    Ford 1976 140/92 added alt cylinder head D7EE-CB

 

                    Ford 91-92 140/100 corrected upper intake casting





RM
 

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