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Valve spring help
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<table border="0" cellpadding="1" cellspacing="1" width="99%" align="center"> <tr bgcolor="#000000"><td> <table border="0" width="100%" cellpadding="3" cellspacing="0"> <tr bgcolor="#000099"> <td colspan="2" align="left"> <font size="2" color="#ffffff" face="Verdana, Arial"> <b>T O P I C R E V I E W</b> </font></td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>jaybquick</b> <br /><small>Member # 4286</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,1,8,18,19,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I am getting a custom cam ground for my 347. It will have .600 lift and the cam builder said I should have a spring with 380 to 400lb when fully open and about 130 to 150lb on the seat. I will be running Comp Cams stock type roller lifters and 1.6 rockers. Right now I have AFR 185s with the 1.43" OD springs and a 1.8" installed height. I will be installing titanium retainers.<br /><br />My question is, what spring should I run to keep valve float away at least until 6500rpm. I am looking at Comp 987-16s go <a href="http://www.compcams.com/Technical/CurrentCatalog/HTML/340-349.asp" target="_blank">HERE</a>(2nd row 2nd column) or Crower 68382-16 go <a href="http://www.crower.com/pdf/105-146.pdf" target="_blank">HERE</a> (page 33 of 42)<br /><br />Any other recomendations will be greatly appreciated. Thanks <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>AJBlackGT</b> <br /><small>Member # 3936</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,1,8,18,47,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Thats a healthy cam <img border="0" title="" alt="[Eek!]" src="eek.gif" /> But i have no idea about the springs, the cam grinder probably knows best, so anything within his specs would probably work fine <img border="0" title="" alt="[Confused]" src="confused.gif" /> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>93PONY</b> <br /><small>Member # 60</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,1,8,21,39,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> The comp springs will NOT cut it.<br />The best springs I've used have come from Ed Curtis. 425lbs on the nose w/145 seat, XE lobes w/.600+ lift & over 7000rpm without valvefloat.<br /><a href="http://www.flowtechinduction.com" target="_blank">www.flowtechinduction.com</a><br /><br />Ask for the Pure Street springs. Those things rev to 8K in race cars with stock lifters. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>jaybquick</b> <br /><small>Member # 4286</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,1,16,23,3,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> thanks 93 pony, anyone else got ideas. I am just double checking on my cam grinder. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>AaronC</b> <br /><small>Member # 86</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,1,17,18,44,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Another vote for the PS style springs. Ed is a valvetrain genius. <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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