Home » Public Forums » GMCnet » edelbrock lifted floor
| edelbrock lifted floor [message #223139] |
Thu, 19 September 2013 14:49  |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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PO installed edelbrock intake end carb top of with a offset 3x14 airfilter
Total is 3" above the floor That seems a big rise, anybody have any experience with this
I would like to level out the floor
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
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| Re: edelbrock lifted floor [message #223143 is a reply to message #223139] |
Thu, 19 September 2013 15:29  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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I think that would be the normal. only the original intake will fit the floor level.
But with that said, I seen someone build a custom intake/floor. that only had the engine hatch from the carb forward, and the width of the carb raised, and an custom built air intake with the filter in there. (used a square air filter) it sucked air from the front of the dash. almost looked factory.
that raised air intake floor part was built in a way that is functioned as a a center counsel with cup holders.
was really nicely done, and retained flat floor from the carb back, and on each side, so getting in and out of seats were done easy.
I should of taken pictures, but I met him broke down and he was changing a water pump.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: edelbrock lifted floor [message #223180 is a reply to message #223143] |
Thu, 19 September 2013 20:10 |
MikeT
Messages: 225
Registered: November 2009
Location: Marine City, Michigan
Karma: 0
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I have a new aftermarket intake on a 77 Royale 403. Fits the standard floor level engine hatch. It was installed by PO so I don't know what brand or where it came from.
Anybody know where to look to get info off manifold?
Mike Thomas
Marine City, MI
77 ex Palm Beach
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| Re: edelbrock lifted floor [message #223185 is a reply to message #223139] |
Thu, 19 September 2013 20:39 |
Don A
Messages: 895
Registered: October 2008
Location: Dallas, TX
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Appie, I have a PO installed edelbrock manifold with about a 3" rise to the hatch. But it really is not a bother to me. I usually just make a little bit of a stretch to step over it and into the seat. What else could you do if it were level.
Don Adams Dallas, TX
'76 26' Glenbrook, '90 Sidekick
rebuilt by R Archer, powered by J Bounds, Koba
[IMG]http://www.gmcmhphotos.com/photos/data/6109/G2.jpg[/IMG]
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| Re: [GMCnet] edelbrock lifted floor [message #223193 is a reply to message #223180] |
Thu, 19 September 2013 22:16 |
powerjon
Messages: 2446
Registered: January 2004
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On the 403 you can use the regular engine hatch, but the 455 block is higher and causes the interference with the cover when using a Edelbrock manifold.
JR
On Sep 19, 2013, at 9:10 PM, Thomas Mike <Mtt2961@gmail.com> wrote:
>
>
> I have a new aftermarket intake on a 77 Royale 403. Fits the standard floor level engine hatch. It was installed by PO so I don't know what brand or where it came from.
>
> Anybody know where to look to get info off manifold?
> --
> Mike Thomas
> Troy, MI
> 77 ex Palm Beach, 77 Royale (rear bath)
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: edelbrock lifted floor [message #223235 is a reply to message #223139] |
Fri, 20 September 2013 15:59 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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The PO on my TZE installed the allout edelbrock kit so I have a raised motor cover. He made it so raises about 5"X18" square in the center to come out first and put on last. It looks like a carpeted Mayan Temple. No offense intended to any Mayans reading. The biggest issue I have is the heat build up under it, in stop and go and when shut down for a few minutes, I had to put a west marine bilge blower on the left side below the horns and used good air intake hose to pull out the hot air. I tried the spectre plenum with remote air filter but it couldn't deliver enough air and I had a bad mid range blubber even with a spacer, And the cast aluminum chunk would get so hot it couldn't be touched. Helped the vapor lock right along. So it went back to the big open air cleaner with the front 3rd blocked off to keep the heat from the fan blowing in it.
Skip Hartline
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] edelbrock lifted floor [message #223269 is a reply to message #223235] |
Fri, 20 September 2013 22:30 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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All of you with Edelbrock intake manifolds should ignore the first photo in
this album, but pay very close attention to all the others and the
captions:
http://www.gmcmhphotos.com/photos/g3057-cylinder-head-damage-from-exhaust-crossover-plugs.html
When I bought my GMC in '98 it was equipped with and Edelbrock Performer
manifold. I found it to be cracked at the center "heat riser" and
contacted the company. They sent me two cast iron plugs and instructions
to install them in the crossover ports of the cylinder heads. The last
time I checked the Summit Racing ads, there was a note that the use of such
plugs is necessary to preserve the warranty.
But, from my experience, illustrated in the album, and that of others I've
heard of, damage to the Edelbrock manifold would be trivial compared to the
engine damage those plugs can cause. I personally know one individual in
whose engine the blocks wore through into the water jacket, causing a $5000
on-the-road repair, followed very shortly by a $10,000 engine rebuild as a
result of the consequent hydraulic lock and damage. (He was admittedly an
easily victimized "Joe Blfsszk", who finally had to give up on GMC's.)
If I had an Edelbrock manifold and there was any chance at all that those
plugs were installed, I wouldn't crank the engine until I'd removed them.
And, in fact, I removed the manifold and replaced it with an OEM iron one.
To those who ask the impact on performance, my reply is, "I don't notice
it below 4000 rpm."
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL
www.gmcwipersetc.com
On Fri, Sep 20, 2013 at 4:59 PM, Skip Hartline <skiphartline@aol.com> wrote:
>
>
> The PO on my TZE installed the allout edelbrock kit so I have a raised
> motor cover. He made it so raises about 5"X18" square in the center to come
> out first and put on last. It looks like a carpeted Mayan Temple. No
> offense intended to any Mayans reading. The biggest issue I have is the
> heat build up under it, in stop and go and when shut down for a few
> minutes, I had to put a west marine bilge blower on the left side below the
> horns and used good air intake hose to pull out the hot air. I tried the
> spectre plenum with remote air filter but it couldn't deliver enough air
> and I had a bad mid range blubber even with a spacer, And the cast aluminum
> chunk would get so hot it couldn't be touched. Helped the vapor lock right
> along. So it went back to the big open air cleaner with the front 3rd
> blocked off to keep the heat from the fan blowing in it.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] edelbrock lifted floor [message #223276 is a reply to message #223269] |
Sat, 21 September 2013 00:43 |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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Senior Member |
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Scary story, Ken
I guess there is no way of knowing what is inside without taking it apart ?
And I thought Edelbrocks were installed to avoid cracks
Darn thing is any parts send to Europe end up at least double the price
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
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| Re: [GMCnet] edelbrock lifted floor [message #223279 is a reply to message #223269] |
Sat, 21 September 2013 03:08 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Ken,
IIRC the last time this subject came up wasn't there some discussion about missing instructions from Edelbrock requiring drilling
1/4" holes through the cast iron plugs?
Regards,
Rob M.
-----Original Message-----
From: Ken Henderson
All of you with Edelbrock intake manifolds should ignore the first photo in
this album, but pay very close attention to all the others and the
captions:
http://www.gmcmhphotos.com/photos/g3057-cylinder-head-damage-from-exhaust-crossover-plugs.html
When I bought my GMC in '98 it was equipped with and Edelbrock Performer
manifold. I found it to be cracked at the center "heat riser" and
contacted the company. They sent me two cast iron plugs and instructions
to install them in the crossover ports of the cylinder heads. The last
time I checked the Summit Racing ads, there was a note that the use of such
plugs is necessary to preserve the warranty.
But, from my experience, illustrated in the album, and that of others I've
heard of, damage to the Edelbrock manifold would be trivial compared to the
engine damage those plugs can cause. I personally know one individual in
whose engine the blocks wore through into the water jacket, causing a $5000
on-the-road repair, followed very shortly by a $10,000 engine rebuild as a
result of the consequent hydraulic lock and damage. (He was admittedly an
easily victimized "Joe Blfsszk", who finally had to give up on GMC's.)
If I had an Edelbrock manifold and there was any chance at all that those
plugs were installed, I wouldn't crank the engine until I'd removed them.
And, in fact, I removed the manifold and replaced it with an OEM iron one.
To those who ask the impact on performance, my reply is, "I don't notice
it below 4000 rpm."
Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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] edelbrock lifted floor [message #223284 is a reply to message #223235] |
Sat, 21 September 2013 07:15 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Skip,
RE; Your mid range blubber. What are you using for an air cleaner or air
duct to a remote filter? If you are using an air duct, how much clearance
between the topside of the air duct and the top of the carb?
Steve F.
On Fri, Sep 20, 2013 at 1:59 PM, Skip Hartline <skiphartline@aol.com> wrote:
>
>
> The PO on my TZE installed the allout edelbrock kit so I have a raised
> motor cover. He made it so raises about 5"X18" square in the center to come
> out first and put on last. It looks like a carpeted Mayan Temple. No
> offense intended to any Mayans reading. The biggest issue I have is the
> heat build up under it, in stop and go and when shut down for a few
> minutes, I had to put a west marine bilge blower on the left side below the
> horns and used good air intake hose to pull out the hot air. I tried the
> spectre plenum with remote air filter but it couldn't deliver enough air
> and I had a bad mid range blubber even with a spacer, And the cast aluminum
> chunk would get so hot it couldn't be touched. Helped the vapor lock right
> along. So it went back to the big open air cleaner with the front 3rd
> blocked off to keep the heat from the fan blowing in it.
> Skip Hartline
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: edelbrock lifted floor [message #223301 is a reply to message #223139] |
Sat, 21 September 2013 11:08 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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I used the spectre air plenum on top of the carb with 1" spacer And used the 4" hose they sell and the large dual cone filter they sell and put the filter below the horns where I have the bilge blower now. I just got the jest of the midrange blubber comment someone thought was getting personal.
Skip
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] edelbrock lifted floor [message #223306 is a reply to message #223279] |
Sat, 21 September 2013 12:36 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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| Robert Mueller wrote on Sat, 21 September 2013 01:08 |
Ken,
IIRC the last time this subject came up wasn't there some discussion about missing instructions from Edelbrock requiring drilling
1/4" holes through the cast iron plugs?
Regards,
Rob M.
-----Original Message-----
From: Ken Henderson
All of you with Edelbrock intake manifolds should ignore the first photo in
this album, but pay very close attention to all the others and the
captions:
http://www.gmcmhphotos.com/photos/g3057-cylinder-head-damage-from-exhaust-crossover-plugs.html
When I bought my GMC in '98 it was equipped with and Edelbrock Performer
manifold. I found it to be cracked at the center "heat riser" and
contacted the company. They sent me two cast iron plugs and instructions
to install them in the crossover ports of the cylinder heads. The last
time I checked the Summit Racing ads, there was a note that the use of such
plugs is necessary to preserve the warranty.
But, from my experience, illustrated in the album, and that of others I've
heard of, damage to the Edelbrock manifold would be trivial compared to the
engine damage those plugs can cause. I personally know one individual in
whose engine the blocks wore through into the water jacket, causing a $5000
on-the-road repair, followed very shortly by a $10,000 engine rebuild as a
result of the consequent hydraulic lock and damage. (He was admittedly an
easily victimized "Joe Blfsszk", who finally had to give up on GMC's.)
If I had an Edelbrock manifold and there was any chance at all that those
plugs were installed, I wouldn't crank the engine until I'd removed them.
And, in fact, I removed the manifold and replaced it with an OEM iron one.
To those who ask the impact on performance, my reply is, "I don't notice
it below 4000 rpm."
Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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When an Oldsmobile speed shop convinced me I needed those plugs they didn't have instructions for drilling any holes. They looked just like Emery's when I removed them.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: edelbrock lifted floor [message #223307 is a reply to message #223139] |
Sat, 21 September 2013 12:40 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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Forgot to mention I have eldelbrock heads, no crossover
Skip
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] edelbrock lifted floor [message #223320 is a reply to message #223279] |
Sat, 21 September 2013 19:37 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Rob,
I, too, have heard recommendations for 1/4"-5/16" holes in the plugs. I
got no such instructions, nor have I ever seen them from a reliable source.
If they're needed, I'd have expected Edelbrock to drill them before
requiring the plugs to support their warranty.
Don't install them under any circumstances is my only suggestion.
Ken H.
On Sat, Sep 21, 2013 at 4:08 AM, Rob Mueller <robmueller@iinet.net.au>wrote:
> Ken,
>
> IIRC the last time this subject came up wasn't there some discussion about
> missing instructions from Edelbrock requiring drilling
> 1/4" holes through the cast iron plugs?
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Ken Henderson
>
> All of you with Edelbrock intake manifolds should ignore the first photo
> in
> this album, but pay very close attention to all the others and the
> captions:
>
>
> http://www.gmcmhphotos.com/photos/g3057-cylinder-head-damage-from-exhaust-crossover-plugs.html
>
> When I bought my GMC in '98 it was equipped with and Edelbrock Performer
> manifold. I found it to be cracked at the center "heat riser" and
> contacted the company. They sent me two cast iron plugs and instructions
> to install them in the crossover ports of the cylinder heads. The last
> time I checked the Summit Racing ads, there was a note that the use of
> such
> plugs is necessary to preserve the warranty.
>
> But, from my experience, illustrated in the album, and that of others I've
> heard of, damage to the Edelbrock manifold would be trivial compared to
> the
> engine damage those plugs can cause. I personally know one individual in
> whose engine the blocks wore through into the water jacket, causing a
> $5000
> on-the-road repair, followed very shortly by a $10,000 engine rebuild as a
> result of the consequent hydraulic lock and damage. (He was admittedly an
> easily victimized "Joe Blfsszk", who finally had to give up on GMC's.)
>
> If I had an Edelbrock manifold and there was any chance at all that those
> plugs were installed, I wouldn't crank the engine until I'd removed them.
> And, in fact, I removed the manifold and replaced it with an OEM iron one.
> To those who ask the impact on performance, my reply is, "I don't notice
> it below 4000 rpm."
>
> Ken H.
>
> _______________________________________________
> 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:
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] edelbrock lifted floor [message #223358 is a reply to message #223320] |
Sun, 22 September 2013 07:31 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken,
I am in full agreement with you and wouldn't install them under any circumstances either!
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Saturday, September 21, 2013 7:37 PM
To: gmclist
Subject: Re: [GMCnet] edelbrock lifted floor
Rob,
I, too, have heard recommendations for 1/4"-5/16" holes in the plugs. I
got no such instructions, nor have I ever seen them from a reliable source.
If they're needed, I'd have expected Edelbrock to drill them before
requiring the plugs to support their warranty.
Don't install them under any circumstances is my only suggestion.
Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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] edelbrock lifted floor [message #223432 is a reply to message #223320] |
Mon, 23 September 2013 10:59 |
GMC Cruse
Messages: 606
Registered: June 2009
Location: SE Michigan
Karma: 3
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Senior Member |
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| Ken Henderson wrote on Sat, 21 September 2013 20:37 |
Rob,
I, too, have heard recommendations for 1/4"-5/16" holes in the plugs. I
got no such instructions, nor have I ever seen them from a reliable source.
If they're needed, I'd have expected Edelbrock to drill them before
requiring the plugs to support their warranty.
Don't install them under any circumstances is my only suggestion.
Ken H.
|
Here's a reliable source:
http://www.edelbrock.com/automotive_new/misc/tech_center/install/2000/2151.pdf
"For Heavy Vehicles (RVs, etc.) - Use the Special Exhaust Plugs supplied. However, drill a 1/4"-5/16" hole through each plug before installation.
This step is highly recommended for all applications!"
Mike K.
'75 PB
Southeast Michigan
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