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- Fri Nov 20, 2009 9:04 pm
- Forum: Engine Conversions
- Topic: Cosworth BOB
- Replies: 5
- Views: 17430
BOB block is stronger - might just be pub talk? Not pub talk, they are stronger, more webbing in the crank area. The BOB block was strengthened at the webbing to give something stronger then the BOA block that experienced crank problems when over rev'd, BOB Block http://img.photobucket.com/albums/0...