X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 17 Nov 2011 08:00:53 -0500 Message-ID: X-Original-Return-Path: Received: from vms173009pub.verizon.net ([206.46.173.9] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with ESMTP id 5202791 for lml@lancaironline.net; Wed, 16 Nov 2011 15:09:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.9; envelope-from=danny.miller@verizon.net Received: from DannyLaptop ([unknown] [71.114.0.254]) by vms173009.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0LUR00BRJRYRIZV0@vms173009.mailsrvcs.net> for lml@lancaironline.net; Wed, 16 Nov 2011 14:08:52 -0600 (CST) From: "Danny Miller" X-Original-To: "'David Brien'" , References: In-reply-to: Subject: RE: Piston upgrade to 10:1 X-Original-Date: Wed, 16 Nov 2011 15:08:46 -0500 X-Original-Message-id: <006301cca49b$8d098800$a71c9800$@miller@verizon.net> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Thread-index: AcyjwK96mm6u1wJeSve9IavCRNDDEwA2lNWg Content-language: en-us It depends on what you're looking for. Different cam lobes can control torque and power, depending on height, location and duration of the = lobe. But, the engine will run fine without a change and produce more power = with nothing but the higher compression pistons. Danny Miller N 38=B0 43' 25.7" W 77=B0 30' 38.6" -----Original Message----- From: David Brien [mailto:BrienAttorney@aol.com]=20 Sent: Tuesday, November 15, 2011 1:02 PM To: lml@lancaironline.net Subject: Piston upgrade to 10:1 Is it required to change or modify the cam when upgrading from 8:1 to = 10:1 pistons on an IO360 engine? I spoke to an engine shop and they said the = cam should be changed. David R. Brien=20