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NHRA Tech Department makes corrections to the engine blue print specifications

Jan. 23, 2018

 

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

 

Chev 427 COPO added cylinder head 19172377 12-15

Chry 383 and 413 added head casting numbers note B 1962

Ford 140 added with notches for piston 87-90








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