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| [GMCnet] 455 / roller cam [message #187249] |
Sun, 14 October 2012 17:21  |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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I can't seem to find where I read that a roller cam won't work with the stock intake.
So, does it?
I pulled the intake off the parts coach today, and the roller lifters were, ah, interesting. Looked like the PO made em work with a bench grinder.
Dolph Santorine
Dolph@DolphSantorine.com
Excuse me for not being my usual wordy and sporadically verbose self. This message is sent from my iPhone.
No trees were killed in the sending of this message and few long dead dinosaurs were involved. A large number of electrons were terribly inconvenienced.
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| Re: [GMCnet] 455 / roller cam [message #187269 is a reply to message #187249] |
Sun, 14 October 2012 20:39  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Dolph,
The link below will take you to JimB's website where he talks about custom motors. If you scroll down you will come to a picture of
an engine with a roller cam. The lifters had to be modified like this to clear the bottom of the OEM manifold:
http://www.gmccoop.com/koba_built_motors.htm
I have Caddy 500 in Sydney that is going to be run on LPG. I did not use a roller cam in it. I did buy a nitrided cam..
Regards,
Rob M.
-----Original Message-----
From: Dolph Santorine
I can't seem to find where I read that a roller cam won't work with the stock intake.
So, does it?
I pulled the intake off the parts coach today, and the roller lifters were, ah, interesting. Looked like the PO made em work with a
bench grinder.
Dolph
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] 455 / roller cam [message #187271 is a reply to message #187269] |
Sun, 14 October 2012 20:50 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Senior Member |
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Thanks, Rob:
That's it, exactly. Based on how clean the internals are, I think I may have a short rebuild in order as opposed to something more extreme.
It's unfortunate that the previous builder did such a sloppy job of the modification on the engine in my parts coach.
Dolph
On Oct 14, 2012, at 9:39 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> Dolph,
>
> The link below will take you to JimB's website where he talks about custom motors. If you scroll down you will come to a picture of
> an engine with a roller cam. The lifters had to be modified like this to clear the bottom of the OEM manifold:
>
> http://www.gmccoop.com/koba_built_motors.htm
>
> I have Caddy 500 in Sydney that is going to be run on LPG. I did not use a roller cam in it. I did buy a nitrided cam..
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Dolph Santorine
>
> I can't seem to find where I read that a roller cam won't work with the stock intake.
>
> So, does it?
>
> I pulled the intake off the parts coach today, and the roller lifters were, ah, interesting. Looked like the PO made em work with a
> bench grinder.
>
> Dolph
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] 455 / roller cam [message #187290 is a reply to message #187271] |
Mon, 15 October 2012 01:22 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Dolph,
Lifter is only a minor problem compared to the distributor gear.
We finally have a roller cam that allows the use of stock dist. gear.
Bronze and phenolic gears are only for short runs.
I know this by past experience as the bronze particles ate up the 3 engines
we built up.
On Sun, Oct 14, 2012 at 6:50 PM, Dolph Santorine
<dolph@dolphsantorine.com>wrote:
> Thanks, Rob:
>
> That's it, exactly. Based on how clean the internals are, I think I may
> have a short rebuild in order as opposed to something more extreme.
>
> It's unfortunate that the previous builder did such a sloppy job of the
> modification on the engine in my parts coach.
>
>
> Dolph
>
>
>
>
> On Oct 14, 2012, at 9:39 PM, "Rob Mueller" <robmueller@iinet.net.au>
> wrote:
>
> > Dolph,
> >
> > The link below will take you to JimB's website where he talks about
> custom motors. If you scroll down you will come to a picture of
> > an engine with a roller cam. The lifters had to be modified like this to
> clear the bottom of the OEM manifold:
> >
> > http://www.gmccoop.com/koba_built_motors.htm
> >
> > I have Caddy 500 in Sydney that is going to be run on LPG. I did not use
> a roller cam in it. I did buy a nitrided cam..
> > Regards,
> > Rob M.
> >
> > -----Original Message-----
> > From: Dolph Santorine
> >
> > I can't seem to find where I read that a roller cam won't work with the
> stock intake.
> >
> > So, does it?
> >
> > I pulled the intake off the parts coach today, and the roller lifters
> were, ah, interesting. Looked like the PO made em work with a
> > bench grinder.
> >
> > Dolph
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
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jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] 455 / roller cam [message #187298 is a reply to message #187290] |
Mon, 15 October 2012 06:06 |
Jim Bounds
Messages: 842
Registered: January 2004
Karma: 0
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Senior Member |
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Jim and others,
Yes, the billit roller cam cannot use the original soft, untreated steel dist gear. There are a couple of ways to fix this issue, one is using a nitrite hardened dist gear another is to use a 2 pieces cam that has a soft steel gear to mate up with the soft steel original dist gear. Jim K. is right in that bronze or phenolic gears are for short term race application. Using those you would have to have a glove box full of them to get cross country. This is something we have dealt with on our motors from the beginning.
Jim Bounds
------------------
________________________________
From: Jim Kanomata <jimkanomata@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, October 15, 2012 2:22 AM
Subject: Re: [GMCnet] 455 / roller cam
Dolph,
Lifter is only a minor problem compared to the distributor gear.
We finally have a roller cam that allows the use of stock dist. gear.
Bronze and phenolic gears are only for short runs.
I know this by past experience as the bronze particles ate up the 3 engines
we built up.
On Sun, Oct 14, 2012 at 6:50 PM, Dolph Santorine
<dolph@dolphsantorine.com>wrote:
> Thanks, Rob:
>
> That's it, exactly. Based on how clean the internals are, I think I may
> have a short rebuild in order as opposed to something more extreme.
>
> It's unfortunate that the previous builder did such a sloppy job of the
> modification on the engine in my parts coach.
>
>
> Dolph
>
>
>
>
> On Oct 14, 2012, at 9:39 PM, "Rob Mueller" <robmueller@iinet.net.au>
> wrote:
>
> > Dolph,
> >
> > The link below will take you to JimB's website where he talks about
> custom motors. If you scroll down you will come to a picture of
> > an engine with a roller cam. The lifters had to be modified like this to
> clear the bottom of the OEM manifold:
> >
> > http://www.gmccoop.com/koba_built_motors.htm
> >
> > I have Caddy 500 in Sydney that is going to be run on LPG. I did not use
> a roller cam in it. I did buy a nitrided cam..
> > Regards,
> > Rob M.
> >
> > -----Original Message-----
> > From: Dolph Santorine
> >
> > I can't seem to find where I read that a roller cam won't work with the
> stock intake.
> >
> > So, does it?
> >
> > I pulled the intake off the parts coach today, and the roller lifters
> were, ah, interesting. Looked like the PO made em work with a
> > bench grinder.
> >
> > Dolph
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] 455 / roller cam [message #187302 is a reply to message #187271] |
Mon, 15 October 2012 06:17 |
Jim Bounds
Messages: 842
Registered: January 2004
Karma: 0
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Senior Member |
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Dolph,
There are no mods needed on a 455 if you use the correct parts. You will need to grind the intake a little to clear the valve train on the 403 motor but it will work if properly modified.
Jim Bounds
--------------------------
________________________________
From: Dolph Santorine <dolph@dolphsantorine.com>
To: gmclist@temp.gmcnet.org
Sent: Sunday, October 14, 2012 9:50 PM
Subject: Re: [GMCnet] 455 / roller cam
Thanks, Rob:
That's it, exactly. Based on how clean the internals are, I think I may have a short rebuild in order as opposed to something more extreme.
It's unfortunate that the previous builder did such a sloppy job of the modification on the engine in my parts coach.
Dolph
On Oct 14, 2012, at 9:39 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> Dolph,
>
> The link below will take you to JimB's website where he talks about custom motors. If you scroll down you will come to a picture of
> an engine with a roller cam. The lifters had to be modified like this to clear the bottom of the OEM manifold:
>
> http://www.gmccoop.com/koba_built_motors.htm
>
> I have Caddy 500 in Sydney that is going to be run on LPG. I did not use a roller cam in it. I did buy a nitrided cam..
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Dolph Santorine
>
> I can't seem to find where I read that a roller cam won't work with the stock intake.
>
> So, does it?
>
> I pulled the intake off the parts coach today, and the roller lifters were, ah, interesting. Looked like the PO made em work with a
> bench grinder.
>
> Dolph
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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