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RE: Hey Royce, here is a question
By David Thayer - 02/07/2002 1:20:54 PM; IP 158.52.254.237
Before we get causght up in the GAF (Gospel according to Ford) let me ask this question. The next time you look under the hood of a 67 or 68 (pre KR) GT500, observe the exhaust manifolds and you will make an interesting discovery.
The 67 and 68 PI 428 (what was adveretised as being in the Shelby's) heads used exhaust bolts in a verticle position, same as 427 heads. Now Ford developed an exhaust manifold for Mustangs, Fairlanes (and bro mercs) to allow the installation of 427 or PI428 in them. It was the "ball glove" exhaust manifold, a very rare piece today. The problem is that when you look under the hood of a 67 or 68 GT500 you will not find this manifold. What you will find is plain jane 390 GT exhaust manifolds with their horizontal bolt patterns bolted to the 390 GT cylinder heads with their horizontal bolt patterns. 428 heads with horizontal bolt patterns didi not appear until they debuted with the CJ and respective CJ exhaust manifolds. Now Ford certainly could have used the Ball Glove manifold and installed PI 428 in Mustangs or they could have used 390 GTmanifolds with 390' or even possibly 428 blocks with 390 gt heads and manifolds. One fact however is they did not use PI 428 in GT500 as advertised.
David
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Collapse <a href=../ForumFE/reply.aspx?ID=11169&Reply=11169><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor11169" onclick="return false;">Marine 427 info from Holman Moody</a>&nbsp;-- <font color=#0000ff>David Thayer, <i>02/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=11169', contentMargin: 60, icon: $('anchor11169') }); </script>  Marine 427 info from Holman Moody -- David Thayer, 02/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=11175&Reply=11169><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor11175" onclick="return false;">Kevin Marti question - 390's in Shelbys</a>&nbsp;-- <font color=#0000ff>Royce Peterson, <i>02/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=11175', contentMargin: 60, icon: $('anchor11175') }); </script>  Kevin Marti question - 390's in Shelbys -- Royce Peterson, 02/07/2002
 RE: engine tag stuff -- David Thayer, 02/07/2002
Collapse <b>RE: Hey Royce, here is a question</b>&nbsp;-- <font color=#0000ff>David Thayer, <i>02/07/2002</i></font>RE: Hey Royce, here is a question -- David Thayer, 02/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=11181&Reply=11169><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor11181" onclick="return false;">67 Fairlane / Comet 427 manifolds</a>&nbsp;-- <font color=#0000ff>Royce Peterson, <i>02/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=11181', contentMargin: 60, icon: $('anchor11181') }); </script>  67 Fairlane / Comet 427 manifolds -- Royce Peterson, 02/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=11188&Reply=11169><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor11188" onclick="return false;">RE: the problem is the heads</a>&nbsp;-- <font color=#0000ff>David Thayer, <i>02/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=11188', contentMargin: 60, icon: $('anchor11188') }); </script>  RE: the problem is the heads -- David Thayer, 02/07/2002
 The problem is NOT the heads -- Royce Peterson, 02/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=11190&Reply=11169><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor11190" onclick="return false;">No - PI heads were drilled both ways. Shoe's got it right...</a>&nbsp;-- <font color=#0000ff>Mr F, <i>02/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=11190', contentMargin: 60, icon: $('anchor11190') }); </script>  No - PI heads were drilled both ways. Shoe's got it right... -- Mr F, 02/07/2002
 Shoes answere explains the heads -- David Thayer, 02/07/2002
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