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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.
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. *As a precaution, I'd strongly recommend replacing
the press in rocker studs with screw in studs.*
On Fri, Jan 25, 2019 at 9:18 PM Joe Brown via Tigers <tigers@autox.team.net>
wrote:
> Hi,
> 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.
>
> 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.
>
> Any help is greatly appreciated.
>
> Thanks,
> Joe Brown
> _______________________________________________
>
> tigers@autox.team.net
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"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 th=
e -215 cam.=C2=A0 There was no interference risk in the valve to piston cle=
arances.</div><div class=3D"gmail_default" style=3D"font-family:verdana,san=
s-serif;font-size:small">Common knowledge is to maximize the lift the engin=
e / valve operation will tolerate (valve springs and clearances limited) fo=
r improved performance and select duration to the rpm range of use.=C2=A0 T=
he greater the duration, the higher the rpm range.=C2=A0 <u>As a precaution=
, I'd strongly recommend replacing the press in rocker studs with screw=
in studs.</u></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" c=
lass=3D"gmail_attr">On Fri, Jan 25, 2019 at 9:18 PM Joe Brown via Tigers &l=
t;<a href=3D"mailto:tigers@autox.team.net";>tigers@autox.team.net</a>> wr=
ote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px=
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D=
"ltr"><div dir=3D"ltr">Hi,<div>My poor Tiger's engine was rode hard and=
put away wet by the original owner.=C2=A0 I am in the process of rebuildin=
g it and now I am having trouble with the cam.=C2=A0 The machine shop put i=
n new cam bearings and I was having a hard time sliding in my old cam.=C2=
=A0 I finally went back to the machine shop and they determined that my old=
cam is warped.=C2=A0 They were able to slide in a cam from a 289 with no t=
rouble.=C2=A0 They said they might could make my old cam work but I don'=
;t like the sound of that.=C2=A0 So I am looking for a new cam that is as c=
lose a match to the old one as possible.=C2=A0</div><div><br></div><div>The=
original cam is Ford part number C3OZ-6250-B and several vendors say they =
have replacements for it.=C2=A0 But their specs don't completely match =
up to the original part. Most of them seem to have higher lift numbers.=C2=
=A0 =C2=A0I don't want to have to change anything in the valve train.=
=C2=A0 Does anybody have a recommendation for something that will work well=
in a basically stock engine?=C2=A0 I'm looking at the Melling MTF1, th=
e Summit SUM-3600 and the CompCams=C2=A031-215-2.=C2=A0=C2=A0</div><div><br=
></div><div>Any help is greatly appreciated.</div><div><br></div><div>Thank=
s,</div><div>Joe Brown</div></div></div>
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</blockquote></div>
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