| Intake manifold search [message #329941] |
Tue, 13 March 2018 16:50  |
Jack Ramsey
Messages: 82
Registered: December 2012
Location: Tulare, CA
Karma: 1
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Member |
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Getting close to driving it: My 75 Palm Beach was rebuilt by the PO in 1997 and then sat for most of the last 20 years (dry Calif Valley). It has a Edlebrock "High rise" aluminum manifold on it and the dog house raised up at least 6 inches. Not my idea of optimal space usage in a small aluminum and fiberglass tube. Looks like an old performer type and while the PO was impressed with the performance, I will put TBI on it and most certainly change out the manifold to create an open space in the front of the coach.
I know the Mondello is the way to go. Has anyone machined down the huge "high rise" part of one of these edlebrock's or do I just bite the $1K bullet and go the Mondello?
Does anything fit under the GMC floor beside the stock intake or the Mondello?
Thanks,
jack
Jack Ramsey
Tulare, CA
TZE165V101526
1975 Palm Beach
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| Re: [GMCnet] Intake manifold search [message #329946 is a reply to message #329943] |
Tue, 13 March 2018 17:21  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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Jack,
You have several options to remove the elevated floor. You can use a stock CI manifold that has been checked for cracks and installed with the exhaust crossovers blocked. Or you can get the new aluminum unit.
http://www.appliedgmc.com/prod.itml/icOid/568
There are a number of the CI manifolds available and I have one in the shop that would have to be check for cracks. You would just have to install the crossover block off plates.
http://www.appliedgmc.com/prod.itml/icOid/569
http://www.appliedgmc.com/prod.itml/icOid/827
The next step is what kind of fuel system as there are very good carbs available along with very good TBI units and a few MPFI units also.
J.R. Wright
GMC GreatLakerTech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan
> On Mar 13, 2018, at 3:15 PM, Emery Stora wrote:
>
> Check the manifolds shown at appliedgmc.com .
> You can also call Jim Kanomata at Applied GMC as he may have others that are not listed on his site.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Mar 13, 2018, at 3:50 PM, Jack Ramsey wrote:
>>
>> Getting close to driving it: My 75 Palm Beach was rebuilt by the PO in 1997 and then sat for most of the last 20 years (dry Calif Valley). It has a
>> Edelbrock "High rise" aluminum manifold on it and the dog house raised up at least 6 inches. Not my idea of optimal space usage in a small aluminum
>> and fiberglass tube. Looks like an old performer type and while the PO was impressed with the performance, I will put TBI on it and most certainly
>> change out the manifold to create an open space in the front of the coach.
>>
>> I know the Mondello is the way to go. Has anyone machined down the huge "high rise" part of one of these edelbrock's or do I just bite the $1K bullet
>> and go the Mondello?
>>
>> Does anything fit under the GMC floor beside the stock intake or the Mondello?
>>
>> Thanks,
>>
>> jack
>> --
>> Jack Ramsey
>> Tulare, CA
>> TZE165V101526
>> 1975 Palm Beach
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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> _______________________________________________
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| Re: [GMCnet] Intake manifold search [message #329949 is a reply to message #329946] |
Tue, 13 March 2018 18:29 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Our AL. Intake has the A/C bracket hole redone to allow the bracket to fit
properly.
Otherwise you'll need to redo it on your own.
On Tue, Mar 13, 2018 at 3:21 PM, John Wright wrote:
> Jack,
> You have several options to remove the elevated floor. You can use a
> stock CI manifold that has been checked for cracks and installed with the
> exhaust crossovers blocked. Or you can get the new aluminum unit.
>
> http://www.appliedgmc.com/prod.itml/icOid/568
>
> There are a number of the CI manifolds available and I have one in the
> shop that would have to be check for cracks. You would just have to
> install the crossover block off plates.
>
> http://www.appliedgmc.com/prod.itml/icOid/569
>
> http://www.appliedgmc.com/prod.itml/icOid/827
>
> The next step is what kind of fuel system as there are very good carbs
> available along with very good TBI units and a few MPFI units also.
>
> J.R. Wright
> GMC GreatLakerTech Editor
> 78 Buskirk 30' Stretch
> 75 Avion Under Reconstruction
> Michigan
>
>> On Mar 13, 2018, at 3:15 PM, Emery Stora wrote:
>>
>> Check the manifolds shown at appliedgmc.com .
>> You can also call Jim Kanomata at Applied GMC as he may have others that
> are not listed on his site.
>>
>> Emery Stora
>> 77 Kingsley
>> Frederick, CO
>>
>>> On Mar 13, 2018, at 3:50 PM, Jack Ramsey wrote:
>>>
>>> Getting close to driving it: My 75 Palm Beach was rebuilt by the PO in
> 1997 and then sat for most of the last 20 years (dry Calif Valley). It has a
>>> Edelbrock "High rise" aluminum manifold on it and the dog house raised
> up at least 6 inches. Not my idea of optimal space usage in a small aluminum
>>> and fiberglass tube. Looks like an old performer type and while the PO
> was impressed with the performance, I will put TBI on it and most certainly
>>> change out the manifold to create an open space in the front of the
> coach.
>>>
>>> I know the Mondello is the way to go. Has anyone machined down the huge
> "high rise" part of one of these edelbrock's or do I just bite the $1K
> bullet
>>> and go the Mondello?
>>>
>>> Does anything fit under the GMC floor beside the stock intake or the
> Mondello?
>>>
>>> Thanks,
>>>
>>> jack
>>> --
>>> Jack Ramsey
>>> Tulare, CA
>>> TZE165V101526
>>> 1975 Palm Beach
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: Intake manifold search [message #330010 is a reply to message #329941] |
Thu, 15 March 2018 08:28 |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
Karma: 7
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Senior Member |
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I know the Mondello is the way to go. Has anyone machined down the huge "high rise" part of one of these edlebrock's or do I just bite the $1K bullet and go the Mondello?
I picked a performer up at a swap meet a while back and ended up not using it
Ttalked to Edelbrock about milling it and they said maximum of 1/2" inch as I recall which wouldnt gain much or be worth the removal. The runners are much higher, it isn just the plenum or mounting flange
Discussing the appplication they saidthey had no data below 2500 rpm but didnt feel it would lose anylow end torque under 3500 and would be about 10-12 better at 4500.
I wouldnt ming the hump myself as I use an f150 console there anyway but it didnt seem worth the effort to change it out.
76 Glenbrook
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| Re: [GMCnet] Intake manifold search [message #330014 is a reply to message #330010] |
Thu, 15 March 2018 10:09 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Anyone even remotely considering using the Edelbrock Performer manifold on
a 455 should be aware of a BIG potential problem: To preserve the
warranty, Edelbrock requires the use of the provided cast iron plugs in the
exhaust ports on the heads (like these:
https://www.summitracing.com/int/parts/edl-2733/overview/?retaillocation=int
).
They WILL damage cylinder heads. I got lucky and removed them before they
wore into the water jacket; others have not been so lucky:
http://www.gmcmhphotos.com/photos/g3057-cylinder-head-damage-from-exhaust-crossover-plugs.html
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, Troy-Bilt APU, etc., etc., etc.
www.gmcwipersetc.com
On Thu, Mar 15, 2018 at 9:28 AM, Chris Tyler
wrote:
>
>
> I know the Mondello is the way to go. Has anyone machined down the huge
> "high rise" part of one of these edlebrock's or do I just bite the $1K
> bullet
> and go the Mondello?
>
>
> I picked a performer up at a swap meet a while back and ended up not using
> it
>
> Ttalked to Edelbrock about milling it and they said maximum of 1/2" inch
> as I recall which wouldnt gain much or be worth the removal. The runners are
> much higher, it isn just the plenum or mounting flange
>
> Discussing the appplication they saidthey had no data below 2500 rpm but
> didnt feel it would lose anylow end torque under 3500 and would be about
> 10-12 better at 4500.
>
> I wouldnt ming the hump myself as I use an f150 console there anyway but
> it didnt seem worth the effort to change it out.
> --
> 76 Glenbrook
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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