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JJ DIKKE

New Ford Xflow Bloxk

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Hello all,

Help required please, does anyone know for definite the maximum size that the new 711M Ford American block, could safely be bored out too?   I would appreciate assistance from anyone that has accurate information, guess I do not want to ruin my £1,500 block.

Thank you.

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Sorry this is a bit late but these blocks should be treated as original 711m blocks - max bore @ 83.5mm, and if boring to bigger size than that you should be having bore-wall thickness-testing done. 

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