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Original Message
It's a bit early for it to be original.
By Dave Shoe - 03/28/2004 6:30:45 PM; IP 216.243.176.34
Three months is a more common date code limit for a casting in a vehicle.

A lot of folk don't understand the casting numbers on the sides of FEs from 1964-on have minimal correlation to what sand cores were stuffed into the mold. They've erroneously read the C6ME or C6ME-A always indicates a 428 block, and think they can bore it out. Unfortunately, the books are ignorant that C6ME or C6ME-A was used on all FEs and FTs thet year, though 427s did often get the more unusual C6AE-A casting mark, since the sideoiler did get different exterior detailing.

There is a small minority of 360/390/410 blocks that got 361/391/428 cylinder jackets, but since too many 390s have been overbored, it's possible you have an oinker with thin cylinders. If, however, the engine has 428 identifiers on it, or if the "drill bit test" suggests it's a 428 block, then you only need to sonic map the cylinders to be sure core shift looks good and you've got healthy cylinders.

Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=20849&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20849" onclick="return false;">Big Block ID for C6ME-A</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/27/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20849', contentMargin: 60, icon: $('anchor20849') }); </script>  Big Block ID for C6ME-A -- olddustyrelics, 03/27/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20851&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20851" onclick="return false;">RE: Big Block ID for C6ME-A</a>&nbsp;-- <font color=#0000ff>Paul Thompson, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20851', contentMargin: 60, icon: $('anchor20851') }); </script>  RE: Big Block ID for C6ME-A -- Paul Thompson, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20852&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20852" onclick="return false;">RE: Big Block ID for C6ME-A</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20852', contentMargin: 60, icon: $('anchor20852') }); </script>  RE: Big Block ID for C6ME-A -- olddustyrelics, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20855&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20855" onclick="return false;">Sounds like the carb needs attention.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20855', contentMargin: 60, icon: $('anchor20855') }); </script>  Sounds like the carb needs attention. -- Dave Shoe, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20856&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20856" onclick="return false;">RE: Sounds like the carb needs attention.</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20856', contentMargin: 60, icon: $('anchor20856') }); </script>  RE: Sounds like the carb needs attention. -- olddustyrelics, 03/28/2004
 It's running too rich. -- Dave Shoe, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20853&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20853" onclick="return false;">12-1-66 date is midyear 1967 production</a>&nbsp;-- <font color=#0000ff>Royce, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20853', contentMargin: 60, icon: $('anchor20853') }); </script>  12-1-66 date is midyear 1967 production -- Royce, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20857&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20857" onclick="return false;">RE: 12-1-66 date is midyear 1967 production</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20857', contentMargin: 60, icon: $('anchor20857') }); </script>  RE: 12-1-66 date is midyear 1967 production -- olddustyrelics, 03/28/2004
Collapse <b>It's a bit early for it to be original.</b>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/28/2004</i></font>It's a bit early for it to be original. -- Dave Shoe, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20863&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20863" onclick="return false;">Bad timing gears</a>&nbsp;-- <font color=#0000ff>Dano, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20863', contentMargin: 60, icon: $('anchor20863') }); </script>  Bad timing gears -- Dano, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20864&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20864" onclick="return false;">That, too.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>03/28/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20864', contentMargin: 60, icon: $('anchor20864') }); </script>  That, too. -- Dave Shoe, 03/28/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20875&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20875" onclick="return false;">RE: That, too.</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/29/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20875', contentMargin: 60, icon: $('anchor20875') }); </script>  RE: That, too. -- olddustyrelics, 03/29/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20876&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20876" onclick="return false;">RE: That, too.</a>&nbsp;-- <font color=#0000ff>Chad Zeilenga, <i>03/30/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20876', contentMargin: 60, icon: $('anchor20876') }); </script>  RE: That, too. -- Chad Zeilenga, 03/30/2004
 RE: That, too. -- olddustyrelics, 03/30/2004
 RE: That, too. -- Paul Thompson, 03/31/2004
Collapse <a href=../ForumFE/reply.aspx?ID=20874&Reply=20849><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor20874" onclick="return false;">RE: It's a bit early for it to be original.</a>&nbsp;-- <font color=#0000ff>olddustyrelics, <i>03/29/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=20874', contentMargin: 60, icon: $('anchor20874') }); </script>  RE: It's a bit early for it to be original. -- olddustyrelics, 03/29/2004
 The drill bit test is a bit controversial. -- Dave Shoe, 04/01/2004
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