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RE: 390 or 428?
By RC Moser - 08/22/2000 4:04:58 AM; IP 152.163.207.199
Mike, To know for sure look on the drivers side of the block by the forward water jacket. Their should be a block I.D. Number. Usually just forward of the motor mounts. If it's a high preformance engine it should have the HP stamped below ID number. You really can't go by the heads due to somebody might of changed them. To me the only way to know for sure is to find these numbers. Another way is to look at the flex plate or Flywheel. 428's are externally balanced and will have a thicker flex plate with a weight welded on it. A 390 takes a 352 flex plate and is internally balanced so the flex plate will be thiner and have no balance weight. That's how I remember it, maybe someone will correct me it I'm wrong. RC
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Collapse <a href=../ForumFE/reply.aspx?ID=2464&Reply=2464><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor2464" onclick="return false;">390 or 428?</a>&nbsp;-- <font color=#0000ff>Mike, <i>08/18/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=2464', contentMargin: 60, icon: $('anchor2464') }); </script>  390 or 428? -- Mike, 08/18/2000
 RE: 390 or 428? -- Barry B., 08/18/2000
Collapse <a href=../ForumFE/reply.aspx?ID=2478&Reply=2464><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor2478" onclick="return false;">RE: 390 or 428?</a>&nbsp;-- <font color=#0000ff>Ed Foral, <i>08/19/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=2478', contentMargin: 60, icon: $('anchor2478') }); </script>  RE: 390 or 428? -- Ed Foral, 08/19/2000
Collapse <a href=../ForumFE/reply.aspx?ID=2481&Reply=2464><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor2481" onclick="return false;">RE: 390 or 428?</a>&nbsp;-- <font color=#0000ff>Mike, <i>08/19/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=2481', contentMargin: 60, icon: $('anchor2481') }); </script>  RE: 390 or 428? -- Mike, 08/19/2000
 RE: 390 or 428? -- Ed Foral, 08/21/2000
Collapse <b>RE: 390 or 428?</b>&nbsp;-- <font color=#0000ff>RC Moser, <i>08/22/2000</i></font>RE: 390 or 428? -- RC Moser, 08/22/2000
 RE: 390 or 428? -- robert, 08/26/2000
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