<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">I installed the Summit CCA-31-216-2 in my stock 260 which has slightly greater lift (0.447 vs. 0.433) and duration than the -215 cam. There was no interference risk in the valve to piston clearances.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Common knowledge is to maximize the lift the engine / valve operation will tolerate (valve springs and clearances limited) for improved performance and select duration to the rpm range of use. The greater the duration, the higher the rpm range. <u>As a precaution, I'd strongly recommend replacing the press in rocker studs with screw in studs.</u></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jan 25, 2019 at 9:18 PM Joe Brown via Tigers <<a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">Hi,<div>My poor Tiger's engine was rode hard and put away wet by the original owner. I am in the process of rebuilding it and now I am having trouble with the cam. The machine shop put in new cam bearings and I was having a hard time sliding in my old cam. I finally went back to the machine shop and they determined that my old cam is warped. They were able to slide in a cam from a 289 with no trouble. They said they might could make my old cam work but I don't like the sound of that. So I am looking for a new cam that is as close a match to the old one as possible. </div><div><br></div><div>The original cam is Ford part number C3OZ-6250-B and several vendors say they have replacements for it. But their specs don't completely match up to the original part. Most of them seem to have higher lift numbers. I don't want to have to change anything in the valve train. Does anybody have a recommendation for something that will work well in a basically stock engine? I'm looking at the Melling MTF1, the Summit SUM-3600 and the CompCams 31-215-2. </div><div><br></div><div>Any help is greatly appreciated.</div><div><br></div><div>Thanks,</div><div>Joe Brown</div></div></div>
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