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Original Message
I'd heard about them, now I've seen one.
By Dave Shoe - 03/21/2002 9:44:34 PM; IP 63.233.226.188
I'd heard of the half-moon on early 390s, but hadn't had a chance to see one until now.

I wonder if Ford changed the drill-bit angle on later 390 cranks so the flange would no longer need the half-moon (I doubt it). Maybe it took a year or two for the engineers to realize the extra machining step to cut the moon was unnecessary on the new-for-1961 390. I'll have to look into this further.

Thanks for the link.

Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=12106&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12106" onclick="return false;">360/390 id</a>&nbsp;-- <font color=#0000ff>Elvis, <i>03/19/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12106', contentMargin: 60, icon: $('anchor12106') }); </script>  360/390 id -- Elvis, 03/19/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12108&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12108" onclick="return false;">Pull the flywheel inspectiom cover.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/19/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12108', contentMargin: 60, icon: $('anchor12108') }); </script>  Pull the flywheel inspectiom cover. -- Dave Shoe, 03/19/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12126&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12126" onclick="return false;">And the half moon slot</a>&nbsp;-- <font color=#0000ff>John M. Sutton, <i>03/20/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12126', contentMargin: 60, icon: $('anchor12126') }); </script>  And the half moon slot -- John M. Sutton, 03/20/2002
 352/360 cranks are the same casting. -- Dave Shoe, 03/20/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12169&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12169" onclick="return false;">RE: Half-moon</a>&nbsp;-- <font color=#0000ff>Barry B, <i>03/21/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12169', contentMargin: 60, icon: $('anchor12169') }); </script>  RE: Half-moon -- Barry B, 03/21/2002
I'd heard about them, now I've seen one. -- Dave Shoe, 03/21/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12109&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12109" onclick="return false;">RE: 360/390 id</a>&nbsp;-- <font color=#0000ff>Bob, <i>03/19/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12109', contentMargin: 60, icon: $('anchor12109') }); </script>  RE: 360/390 id -- Bob, 03/19/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12130&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12130" onclick="return false;">RE: 360/390 id</a>&nbsp;-- <font color=#0000ff>Elvis, <i>03/20/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12130', contentMargin: 60, icon: $('anchor12130') }); </script>  RE: 360/390 id -- Elvis, 03/20/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12133&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12133" onclick="return false;">RE: 360/390 id</a>&nbsp;-- <font color=#0000ff>Bob, <i>03/20/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12133', contentMargin: 60, icon: $('anchor12133') }); </script>  RE: 360/390 id -- Bob, 03/20/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12182&Reply=12106><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12182" onclick="return false;">352/360 crank differences...</a>&nbsp;-- <font color=#0000ff>kevin, <i>03/22/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12182', contentMargin: 60, icon: $('anchor12182') }); </script>  352/360 crank differences... -- kevin, 03/22/2002
 I believe there are two different 360 cranks. -- Dave Shoe, 03/22/2002
 RE: Long rod 390's? -- Barry B, 03/22/2002
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