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RE: 352/390HP heads!
By Mike McQuesten - 05/15/2001 4:55:25 PM; IP 206.193.0.122
The cam is a good one. It's a bit lopey but I had one in a 427 and it was very streetable and reved well to 6,200. But now lets talk about those COAE-D heads you're thinking about. I'm guessing here but the cc on those heads is around 57-58. They are compression ratio makers to say the least. They were stock on '60 HP 352 with flat top pistons, and stock on '61 HP 390, 375/401hp and were used with dished pistons on that '61 -'90. These HP engines were rated around 10.7:1 I think. Those heads on a 428 w/flat top pistons will be very high CR. Not functional on anything but high octane racing fuel. Maybe your machinist can dish the 428 pistons or you can have a custom set of forged made, I would run forged pistons with the C-ratio you're going to have with those heads.
I'll admit that I'm running these heads on a 427. But I'm running C3J marine/industrial forged Ford pistons. They're dished similar to the '61 390 cast pistons. My machinist worked the compression ratio with the COAE-D heads(with 1.66 CJ/LR '27 exhaust valves) to be 10.5:1. I know I'll have to run high octance good stuff for most driving. But I had to do it. My 427 is dressed as a 352HP for a genuine HP '60 car. So the HP heads are a must for me. I'd recommend using a set of C4AE-G heads which are commonly available in bone yards. Big CJ valves fit nicely in them and the combustion chamber works well with 428 pistons. Still I think you'll have over 10.00:1 with flat tops. Use forged pistons. I'll trade you a set of C4AE-Gs for those COAE-6090-Ds?
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Collapse <a href=../ForumFE/reply.aspx?ID=6376&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6376" onclick="return false;">mr.ford can you help or someone please</a>&nbsp;-- <font color=#0000ff>gerald, <i>05/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6376', contentMargin: 60, icon: $('anchor6376') }); </script>  mr.ford can you help or someone please -- gerald, 05/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6378&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6378" onclick="return false;">RE: mr.ford can you help or someone please</a>&nbsp;-- <font color=#0000ff>BOB HOPKINS, <i>05/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6378', contentMargin: 60, icon: $('anchor6378') }); </script>  RE: mr.ford can you help or someone please -- BOB HOPKINS, 05/15/2001
RE: 352/390HP heads! -- Mike McQuesten, 05/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6394&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6394" onclick="return false;">RE: mr.ford can you help or someone please</a>&nbsp;-- <font color=#0000ff>Dad, <i>05/16/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6394', contentMargin: 60, icon: $('anchor6394') }); </script>  RE: mr.ford can you help or someone please -- Dad, 05/16/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6400&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6400" onclick="return false;">RE: mr.ford can you help or someone please</a>&nbsp;-- <font color=#0000ff>gerald, <i>05/16/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6400', contentMargin: 60, icon: $('anchor6400') }); </script>  RE: mr.ford can you help or someone please -- gerald, 05/16/2001
 RE: mr.ford can you help or someone please -- BOB HOPKINS, 05/16/2001
 RE: mr.ford can you help or someone please -- Dad, 05/17/2001
 RE: mr.ford can you help or someone please -- kevin, 05/17/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6450&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6450" onclick="return false;">RE: mr.ford can you help or someone please</a>&nbsp;-- <font color=#0000ff>bear, <i>05/19/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6450', contentMargin: 60, icon: $('anchor6450') }); </script>  RE: mr.ford can you help or someone please -- bear, 05/19/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6468&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6468" onclick="return false;">RE will sale heads coae-d</a>&nbsp;-- <font color=#0000ff>gerald, <i>05/21/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6468', contentMargin: 60, icon: $('anchor6468') }); </script>  RE will sale heads coae-d -- gerald, 05/21/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6472&Reply=6376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6472" onclick="return false;">RE will sale heads coae-d</a>&nbsp;-- <font color=#0000ff>bear, <i>05/22/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6472', contentMargin: 60, icon: $('anchor6472') }); </script>  RE will sale heads coae-d -- bear, 05/22/2001
 RE will sale heads yes its me bear (nm)# -- gerald, 05/22/2001
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