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NHRA Tech Department makes corrections to the engine blue print specifications

The NHRA Technical Department recently made corrections to the blue print specifications.

2010 Ford Cobra Jet 352 285 added cylinder head casting M-6049-Z304D

2010 Ford Cobra Jet 428 375 added cylinder head casting M-6049-Z304D

09-10 Dodge 426 450 corrected piston dome to .195





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