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0312mm Wynne 12 Z

To beef up the bottom end a Wynnespeed steel mains girdle was used. This ties in the main bearing caps and generally produces a 750hp capability from an otherwise good stock 351 block.
The 411 on a 408

 To beef up the bottom end a Wynnespeed steel mains girdle was used. This ties in the main bearing caps and generally produces a 750hp capability from an otherwise good stock 351 block.  View Related Article

 

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