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SuperCooper
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PostPosted: Tue Oct 18, 2011 9:11 pm 
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Is it a large jnl crank stroked for small jnl rods?
Was the block originally for a lge or sml jnl crank?

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drmini in aust
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PostPosted: Tue Oct 18, 2011 9:22 pm 
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SuperCooper wrote:
Is it a large jnl crank stroked for small jnl rods?
Was the block originally for a lge or sml jnl crank?

1100S etc blocks (except Cooper S) are same dimensions, either big or small journal.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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SuperCooper
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PostPosted: Tue Oct 18, 2011 9:55 pm 
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OK , I just read he had a stroker and not sure of the block / crank types so thought that could be an issue, having experiend this my self.

Cheers.

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drmini in aust
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PostPosted: Wed Oct 19, 2011 7:16 am 
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Only issue is fitting an S crank into 1100S block or vice versa. Centre main cap width on S is 1/32" less than all the others (why, who knows...)
This means I have to surface grind the thrust washers in my [1300 auto block]1360 (as it has S crank)- but if putting 1100S crank into Cooper S you need to use +.030" thrusts then surface grind them to fit.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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