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Notching?
By Royce Peterson - 05/02/2003 7:52:26 AM; IP 67.74.11.235
The stroke is only .100 difference in each direction(up, down) and no machine work is necessary to the block. Since most 390 pistons are .040" in the hole you can easily cut the required amount off the tops of the piston in a lathe to avoid buying custom forged 410 pistons. I recommend against use of cast pistons in any performance engine because it is easy to make a little mistake when assembling an engine and forged pistons will let you have a mistake without costing the loss of the entire motor.

Things to watch out for in a crank swap are piston to valve clearance and the need to rebalance the entire assembly. Since factory 410 pistons are not available it is mandatory to do a static and dynamic balance job. The additional stroke will put the piston higher in the bore quicker in relation to valve events.

Royce
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Collapse <a href=../ForumFE/reply.aspx?ID=12892&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12892" onclick="return false;">fe build up</a>&nbsp;-- <font color=#0000ff>jeff, <i>05/06/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12892', contentMargin: 60, icon: $('anchor12892') }); </script>  fe build up -- jeff, 05/06/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12898&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12898" onclick="return false;">RE: fe build up</a>&nbsp;-- <font color=#0000ff>Mike McQuesten, <i>05/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12898', contentMargin: 60, icon: $('anchor12898') }); </script>  RE: fe build up -- Mike McQuesten, 05/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12926&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12926" onclick="return false;">Dog gone it Mike....I wanted to tell him about ...</a>&nbsp;-- <font color=#0000ff>Nitro, <i>05/11/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12926', contentMargin: 60, icon: $('anchor12926') }); </script>  Dog gone it Mike....I wanted to tell him about ... -- Nitro, 05/11/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12927&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12927" onclick="return false;">dunno bout that pertronix</a>&nbsp;-- <font color=#0000ff>Rob, <i>05/11/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12927', contentMargin: 60, icon: $('anchor12927') }); </script>  dunno bout that pertronix -- Rob, 05/11/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12928&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12928" onclick="return false;">Pertronix</a>&nbsp;-- <font color=#0000ff>RobMcQ, <i>05/11/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12928', contentMargin: 60, icon: $('anchor12928') }); </script>  Pertronix -- RobMcQ, 05/11/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12929&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12929" onclick="return false;">RE: Pertronix</a>&nbsp;-- <font color=#0000ff>Rob, <i>05/11/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12929', contentMargin: 60, icon: $('anchor12929') }); </script>  RE: Pertronix -- Rob, 05/11/2002
 RE: Pertronix -- Bob, 05/11/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12945&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12945" onclick="return false;">RE: fe build up</a>&nbsp;-- <font color=#0000ff>William, <i>05/12/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12945', contentMargin: 60, icon: $('anchor12945') }); </script>  RE: fe build up -- William, 05/12/2002
Collapse <a href=../ForumFE/reply.aspx?ID=12947&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor12947" onclick="return false;">RE: fe build up</a>&nbsp;-- <font color=#0000ff>Bob, <i>05/12/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=12947', contentMargin: 60, icon: $('anchor12947') }); </script>  RE: fe build up -- Bob, 05/12/2002
Collapse <a href=../ForumFE/reply.aspx?ID=17073&Reply=12892><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17073" onclick="return false;">RE: fe build up</a>&nbsp;-- <font color=#0000ff>carlos, <i>05/02/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17073', contentMargin: 60, icon: $('anchor17073') }); </script>  RE: fe build up -- carlos, 05/02/2003
Notching? -- Royce Peterson, 05/02/2003
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