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RE: 10.5:1 C-ratio?
By McQ - 06/03/2004 4:24:09 PM; IP 209.19.180.126
I wouldn't recommend 10.5:1 c-ratio. That's what I have with my 390 and it takes 92 octane minimum and that's not enough when the weather temp. exceeds 805 degrees. Although I must say that with newly escalated fuel prices, there's less discrepancy now between regular u/l and the 92 "higher" octane. Gas Price Report here in Spokane, WA = $2.19 unl./ 2.35 Premium. Not bad. I'm sure that's going to jump another dime this weekend.

As for non adjustable rockers vs. adjustables, you'll be fine with the cam you've chosen to stay with non adjustables.

Heads? If your 352 is the original '65 engine you probably have C4AE-G or C1AE heads. They're fine. Either can have the larger CJ/lo-riser valves installed if you think you'll need them. I don't think you do. My reason is that you don't want to exceed 5,500 rpms anyway so you really don't need the increased flow at the low r's you plan. It reads like you want a strong, reliable 390. You will easily have it with the cam/lifter/spring combination; the Edelbrock Performer and 600-650 CFM carb. And shoot for 9.5:1 - 10:00:1 maximum compression ratio.

The Hedman "Hedders" (Headman's spelling) are a good choice. They will allow your 390 to breath well much better than the stock "log" manifolds.

I would suggest hardened exhaust seats.

Also an electronic ignition such as Pertronix or even MSD.

I have a '68 F100 with C-6/3.50's. It has a '65 390-4V built to GT 390 specs which means nothing more than a C6OZ-6250-B 390GT/428CJ cam with standard Crane lifters/springs. I'm also running an Autolite 4100 (1.08) small carb. Headman headers. An MSD 6A firing through a C8OE '69 CJ distributor with Ford electronic conversion. I'm pleased with its overall driveability and power.

Of course I get to thinkin'..... why not another 428, .030 over, 433 cubes, Speed Pro forged CJ replacements.......you never know. I don't think my fuel consumption would be any higher than the 390. Selective perception.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=21672&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21672" onclick="return false;">390 build up ?</a>&nbsp;-- <font color=#0000ff>K-SKI, <i>05/30/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21672', contentMargin: 60, icon: $('anchor21672') }); </script>  390 build up ? -- K-SKI, 05/30/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21689&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21689" onclick="return false;">RE: 390 build up ?</a>&nbsp;-- <font color=#0000ff>giacamo, <i>06/01/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21689', contentMargin: 60, icon: $('anchor21689') }); </script>  RE: 390 build up ? -- giacamo, 06/01/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21695&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21695" onclick="return false;">RE: 390 build up ?</a>&nbsp;-- <font color=#0000ff>K-SKI, <i>06/02/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21695', contentMargin: 60, icon: $('anchor21695') }); </script>  RE: 390 build up ? -- K-SKI, 06/02/2004
Collapse <b>RE: 10.5:1 C-ratio?</b>&nbsp;-- <font color=#0000ff>McQ, <i>06/03/2004</i></font>RE: 10.5:1 C-ratio? -- McQ, 06/03/2004
 RE: 805 degrees! -- McQ, 06/03/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21714&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21714" onclick="return false;">RE: 390 build up ?</a>&nbsp;-- <font color=#0000ff>giacamo, <i>06/04/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21714', contentMargin: 60, icon: $('anchor21714') }); </script>  RE: 390 build up ? -- giacamo, 06/04/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21792&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21792" onclick="return false;">RE: 390 build up ?</a>&nbsp;-- <font color=#0000ff>Tim P., <i>06/10/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21792', contentMargin: 60, icon: $('anchor21792') }); </script>  RE: 390 build up ? -- Tim P., 06/10/2004
 RE: 390 build up ? -- giacamo, 06/12/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21805&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21805" onclick="return false;">my 390</a>&nbsp;-- <font color=#0000ff>Dusty, <i>06/12/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21805', contentMargin: 60, icon: $('anchor21805') }); </script>  my 390 -- Dusty, 06/12/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21820&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21820" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>McQ, <i>06/14/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21820', contentMargin: 60, icon: $('anchor21820') }); </script>  RE:390 not meant for high RPMs? -- McQ, 06/14/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21824&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21824" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>Dusty, <i>06/14/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21824', contentMargin: 60, icon: $('anchor21824') }); </script>  RE:390 not meant for high RPMs? -- Dusty, 06/14/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21830&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21830" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>McQ, <i>06/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21830', contentMargin: 60, icon: $('anchor21830') }); </script>  RE:390 not meant for high RPMs? -- McQ, 06/15/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21831&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21831" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>Dusty, <i>06/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21831', contentMargin: 60, icon: $('anchor21831') }); </script>  RE:390 not meant for high RPMs? -- Dusty, 06/15/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21832&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21832" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>McQ, <i>06/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21832', contentMargin: 60, icon: $('anchor21832') }); </script>  RE:390 not meant for high RPMs? -- McQ, 06/15/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21834&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21834" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>giacamo, <i>06/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21834', contentMargin: 60, icon: $('anchor21834') }); </script>  RE:390 not meant for high RPMs? -- giacamo, 06/15/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21837&Reply=21672><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21837" onclick="return false;">RE:390 not meant for high RPMs?</a>&nbsp;-- <font color=#0000ff>Dusty, <i>06/15/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21837', contentMargin: 60, icon: $('anchor21837') }); </script>  RE:390 not meant for high RPMs? -- Dusty, 06/15/2004
 RE:390 rod bolts -- McQ, 06/16/2004
 RE:390 not meant for high RPMs? -- giacamo, 06/17/2004
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