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Original Message
Depends.
By Paul M - 10/18/2001 12:39:09 AM; IP 24.20.44.11
I've heard elsewhere that there are ways to guestimate (NOT a substitute for sonic checking, but a way to save money looking for a candidate block).

One is to look inside the block, behind the center freeze plug, for the #'s 428 cast or stamped in (not positive which).

Also, try putting a pencil (standard #2 type) between the middle cylinders, (after you looked for the casting #'s inside) at the widest point you can see. If the pencil fits, forget it, you *might* get .060 over, if you're lucky.

`68 was getting close to the end of production 390's for cars, so they may have been letting the
casting's quality go a bit. Not to mention it was for a Galaxie, and not a GT for a Mustang. Chances are it's not a heavy block, but you never can tell for sure, as Ford was notorious for using whatever parts they had on whatever engines they were building.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=8741&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8741" onclick="return false;">390=427?</a>&nbsp;-- <font color=#0000ff>Tom, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8741', contentMargin: 60, icon: $('anchor8741') }); </script>  390=427? -- Tom, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8746&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8746" onclick="return false;">Re: 390=427?</a>&nbsp;-- <font color=#0000ff>67_coupe, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8746', contentMargin: 60, icon: $('anchor8746') }); </script>  Re: 390=427? -- 67_coupe, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8747&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8747" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Bob, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8747', contentMargin: 60, icon: $('anchor8747') }); </script>  RE: Re: 390=427? -- Bob, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8751&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8751" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Mel Clark, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8751', contentMargin: 60, icon: $('anchor8751') }); </script>  RE: Re: 390=427? -- Mel Clark, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8768&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8768" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Tom, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8768', contentMargin: 60, icon: $('anchor8768') }); </script>  RE: Re: 390=427? -- Tom, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8769&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8769" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Flack Jack, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8769', contentMargin: 60, icon: $('anchor8769') }); </script>  RE: Re: 390=427? -- Flack Jack, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8770&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8770" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Tom, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8770', contentMargin: 60, icon: $('anchor8770') }); </script>  RE: Re: 390=427? -- Tom, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8771&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8771" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Flack Jack, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8771', contentMargin: 60, icon: $('anchor8771') }); </script>  RE: Re: 390=427? -- Flack Jack, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8773&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8773" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Bob, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8773', contentMargin: 60, icon: $('anchor8773') }); </script>  RE: Re: 390=427? -- Bob, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8774&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8774" onclick="return false;">RE: Re: 390=427?</a>&nbsp;-- <font color=#0000ff>Tom, <i>10/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8774', contentMargin: 60, icon: $('anchor8774') }); </script>  RE: Re: 390=427? -- Tom, 10/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8779&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8779" onclick="return false;">390 doesn't = 428</a>&nbsp;-- <font color=#0000ff>Paul M, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8779', contentMargin: 60, icon: $('anchor8779') }); </script>  390 doesn't = 428 -- Paul M, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8781&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8781" onclick="return false;">RE: 390 doesn't = 428</a>&nbsp;-- <font color=#0000ff>Tom, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8781', contentMargin: 60, icon: $('anchor8781') }); </script>  RE: 390 doesn't = 428 -- Tom, 10/18/2001
Collapse <b>Depends.</b>&nbsp;-- <font color=#0000ff>Paul M, <i>10/18/2001</i></font>Depends. -- Paul M, 10/18/2001
 RE: Depends. -- Tom, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8786&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8786" onclick="return false;">RE: 390 doesn't = 428</a>&nbsp;-- <font color=#0000ff>Rollie H, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8786', contentMargin: 60, icon: $('anchor8786') }); </script>  RE: 390 doesn't = 428 -- Rollie H, 10/18/2001
 RE: 390 doesn't = 428 -- Tom, 10/18/2001
 390 wont run right -- Dan Wolf, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8788&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8788" onclick="return false;">RE: Numbers don't make HP, Knowledge does</a>&nbsp;-- <font color=#0000ff>R. Shannon, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8788', contentMargin: 60, icon: $('anchor8788') }); </script>  RE: Numbers don't make HP, Knowledge does -- R. Shannon, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8790&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8790" onclick="return false;">RE: Numbers don't make HP, Knowledge does</a>&nbsp;-- <font color=#0000ff>Dan Wolf, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8790', contentMargin: 60, icon: $('anchor8790') }); </script>  RE: Numbers don't make HP, Knowledge does -- Dan Wolf, 10/18/2001
 RE: Numbers don't make HP, Knowledge does -- Old Bob, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8793&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8793" onclick="return false;">390 bogs down</a>&nbsp;-- <font color=#0000ff>Dan Wolf, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8793', contentMargin: 60, icon: $('anchor8793') }); </script>  390 bogs down -- Dan Wolf, 10/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=8799&Reply=8741><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor8799" onclick="return false;">RE: 390 bogs down</a>&nbsp;-- <font color=#0000ff>Bob, <i>10/18/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=8799', contentMargin: 60, icon: $('anchor8799') }); </script>  RE: 390 bogs down -- Bob, 10/18/2001
 RE: 390 bogs down -- Tom, 10/18/2001
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