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Original Message
427 tunnel port NASCAR heads
By kk5ye - 12/17/2001 5:18:23 PM; IP 157.165.41.125
Made only a couple of years for NASCAR. It was the last head design for the 427 until the BOSS 429 was ready.

The push rod goes right through the intake port, strickly high RPM ( about 7000 for NASCAR).

Ford made a 302 version in 68, but the power band was too high for Trans-Am racing and were replaced by the BOSS 302 in 69.

The exhaust port mods greatly reduces their value.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=10082&Reply=10082><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10082" onclick="return false;">CJ heads are JUNK compared to these...</a>&nbsp;-- <font color=#0000ff>Jim, <i>12/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10082', contentMargin: 60, icon: $('anchor10082') }); </script>  CJ heads are JUNK compared to these... -- Jim, 12/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=10083&Reply=10082><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10083" onclick="return false;">What are those blue things? n/m</a>&nbsp;-- <font color=#0000ff>Jim, <i>12/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10083', contentMargin: 60, icon: $('anchor10083') }); </script>  What are those blue things? n/m -- Jim, 12/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=10085&Reply=10082><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10085" onclick="return false;">Looks like a metal plate used...</a>&nbsp;-- <font color=#0000ff>Dan Davis, <i>12/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10085', contentMargin: 60, icon: $('anchor10085') }); </script>  Looks like a metal plate used... -- Dan Davis, 12/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=10089&Reply=10082><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10089" onclick="return false;">RE: Looks like a metal plate used...</a>&nbsp;-- <font color=#0000ff>Travis Miller, <i>12/17/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10089', contentMargin: 60, icon: $('anchor10089') }); </script>  RE: Looks like a metal plate used... -- Travis Miller, 12/17/2001
 RE: 8000 to 10000 rpms?! -- Jim, 12/17/2001
427 tunnel port NASCAR heads -- kk5ye, 12/17/2001
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