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Original Message
It's a 390 block, not a 427. I don't get it.
By Dave Shoe - 01/07/2002 5:42:24 PM; IP 12.2.11.131
Lots of 360/390 blocks came with ribs on the sides back in the early-mid '70s. These weren't performance blocks and didn't have thick cylinders. Also, I believe Fred Jones is a big truck motor rebuilder, not a NASCAR shop.

How do you get 427 out of your engine? I'm unaware that Ford ever used 427 blocks as 390s. 396's yes, but not 390s. Casting genuine 427 water jackets is an expensive PITA. Ford would likely only do it if they were getting paid a proper fee, especially since 360/390 blocks were being popped out cheap back then.

I understand that some magazine articles speak about boring 390 blocks out to 427 specs, but that doesn't make it a good idea. And stock 427 blocks can't be shrunken to fit 360/390 pistons - the raw cylinder castings are too big (which means there were approximately zero 360/390 engines made using them).

If you go selling it on ebay as a 427, someones gonna start a thread in it in these forums. Keep in mind that the last seller who got attention in these forums because of a squirrely ebay auction on ebay DID still sell his thin-walled 360 block for $850.00, just because it had a 427 marking on it and he misworded his entire auction description around the marking.

I emailed the buyer after auction and he was confident the used block in the photo was a NOS(!) 427 block because the seller told him it was. He sounded a lot like you do right now (except he was buying), and was eager to pay his $850.00+shipping, and he was also quick to tell me how wrong I was.

What am I missing?

Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=10489&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10489" onclick="return false;">427 crate motor</a>&nbsp;-- <font color=#0000ff>John M. Sutton, <i>01/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10489', contentMargin: 60, icon: $('anchor10489') }); </script>  427 crate motor -- John M. Sutton, 01/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10490&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10490" onclick="return false;">RE: 427 crate motor</a>&nbsp;-- <font color=#0000ff>Ed Foral, <i>01/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10490', contentMargin: 60, icon: $('anchor10490') }); </script>  RE: 427 crate motor -- Ed Foral, 01/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10491&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10491" onclick="return false;">RE: 427 crate motor</a>&nbsp;-- <font color=#0000ff>John M. Sutton, <i>01/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10491', contentMargin: 60, icon: $('anchor10491') }); </script>  RE: 427 crate motor -- John M. Sutton, 01/07/2002
Collapse <b>It's a 390 block, not a 427. I don't get it.</b>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>01/07/2002</i></font>It's a 390 block, not a 427. I don't get it. -- Dave Shoe, 01/07/2002
 Your missing the stroke of 3.98 -- Bob, 01/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10528&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10528" onclick="return false;">RE: It's a 390 block, not a 427. I don't get it.</a>&nbsp;-- <font color=#0000ff>John M. Sutton, <i>01/08/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10528', contentMargin: 60, icon: $('anchor10528') }); </script>  RE: It's a 390 block, not a 427. I don't get it. -- John M. Sutton, 01/08/2002
 The best thing to do is gap the cylinder jacket. -- Dave Shoe, 01/09/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10505&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10505" onclick="return false;">For John Sutton....</a>&nbsp;-- <font color=#0000ff>kevin, <i>01/07/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10505', contentMargin: 60, icon: $('anchor10505') }); </script>  For John Sutton.... -- kevin, 01/07/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10530&Reply=10489><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10530" onclick="return false;">From John Sutton....</a>&nbsp;-- <font color=#0000ff>John M. Sutton, <i>01/08/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10530', contentMargin: 60, icon: $('anchor10530') }); </script>  From John Sutton.... -- John M. Sutton, 01/08/2002
 Get yourself a...... -- kevin, 01/08/2002
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