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Re: Building a HP 440 with Factory Manifolds
[Re: bobby66]
#2440498
01/25/18 11:40 AM
01/25/18 11:40 AM
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Joined: Jan 2005
Posts: 4,564
Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,564
Michigan
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How do you guys get around the plug clearance problem with Edlebrock heads and HP manifolds? Don't the angled plugs get really close to the heat? You don't. I kept frying the #7 plug boot. It was my own stupid fault for buying Edelbrock heads. I knew there was better heads on the market with straight plugs. In the end this was my solution:   Shorty headers as I didn't want the headache of long tubes. Decided to have them made out of stainless while I was at it.
1987 Fifth Avenue - 512/518/D60
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Re: Building a HP 440 with Factory Manifolds
[Re: Mr D21]
#2440507
01/25/18 12:02 PM
01/25/18 12:02 PM
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Joined: Jan 2003
Posts: 14,545
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,545
So. Burlington, Vt.
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Edelbrock E Street 84cc heads have straight plugs.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Building a HP 440 with Factory Manifolds
[Re: bobby66]
#2440544
01/25/18 01:05 PM
01/25/18 01:05 PM
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Joined: Jan 2003
Posts: 31,274
Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,274
Oregon
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How do you guys get around the plug clearance problem with Edlebrock heads and HP manifolds? Don't the angled plugs get really close to the heat? I used the Mopar 452 heads (straight plug version of the Edelbrocks). There is a lot more clearance with the straight plug heads. Previously I had run the angle plug heads and had problems burning up one or two of the spark plug leads so I switched heads. What you really want from a clearance standpoint is an angle plug head on the driver side and a straight plug head on the pass side. That would work the best for the spark plug wires.
Last edited by AndyF; 01/25/18 01:07 PM.
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Re: Building a HP 440 with Factory Manifolds
[Re: AndyF]
#2440557
01/25/18 01:34 PM
01/25/18 01:34 PM
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Joined: Jul 2004
Posts: 3,859
Arlington, Texas
bobby66
master
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master
Joined: Jul 2004
Posts: 3,859
Arlington, Texas
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How do you guys get around the plug clearance problem with Edlebrock heads and HP manifolds? Don't the angled plugs get really close to the heat? I used the Mopar 452 heads (straight plug version of the Edelbrocks). There is a lot more clearance with the straight plug heads. Previously I had run the angle plug heads and had problems burning up one or two of the spark plug leads so I switched heads. What you really want from a clearance standpoint is an angle plug head on the driver side and a straight plug head on the pass side. That would work the best for the spark plug wires. Interesting. Maybe I'll snag one 452 head for the passenger side.
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Re: Building a HP 440 with Factory Manifolds
[Re: Von]
#2440565
01/25/18 01:53 PM
01/25/18 01:53 PM
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Joined: Feb 2005
Posts: 4,336
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,336
Prospect, PA
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Bsb...
I've always felt your combo is one of the most impressive combos on this board.👍👍
Thanks
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Re: Building a HP 440 with Factory Manifolds
[Re: Mr D21]
#2440734
01/25/18 08:47 PM
01/25/18 08:47 PM
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Joined: Oct 2007
Posts: 4,219
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,219
New York
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dogdays on point, as usual.
Shorties for street = excellent. Equal length highly over-rated for a engine with limited RPM and "warm" cam with moderate OL and wide LSA.
More trouble, more $$$, less efficient than shorties (but better than manifolds and very tight for clearance): fabrication from "weld ells".
Boffin Emeritus
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Re: Building a HP 440 with Factory Manifolds
[Re: fast68plymouth]
#2443190
01/30/18 12:51 AM
01/30/18 12:51 AM
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Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
Clair_Davis
master
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master
Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
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Edelbrock E Street 84cc heads have straight plugs. Are the 75cc heads angle-plug? The Edelbrock website shows angle plugs on the E-Street page, and I can't find any other pics of these heads on their website. Subscribed, as I'm building a HP manifold engine myself... Clair
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Re: Building a HP 440 with Factory Manifolds
[Re: AndyF]
#2443289
01/30/18 08:56 AM
01/30/18 08:56 AM
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Joined: Nov 2011
Posts: 292
PA
Harry's Taxi 2
enthusiast
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enthusiast
Joined: Nov 2011
Posts: 292
PA
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How do you guys get around the plug clearance problem with Edlebrock heads and HP manifolds? Don't the angled plugs get really close to the heat? I used the Mopar 452 heads (straight plug version of the Edelbrocks). There is a lot more clearance with the straight plug heads. Previously I had run the angle plug heads and had problems burning up one or two of the spark plug leads so I switched heads. What you really want from a clearance standpoint is an angle plug head on the driver side and a straight plug head on the pass side. That would work the best for the spark plug wires. Andy, a little off the topic, but where did you get those exhaust gaskets?
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: Building a HP 440 with Factory Manifolds
[Re: Clair_Davis]
#2443560
01/30/18 05:10 PM
01/30/18 05:10 PM
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Joined: Feb 2003
Posts: 2,822
Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,822
Sobieski Wi
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Edelbrock E Street 84cc heads have straight plugs. Are the 75cc heads angle-plug? The Edelbrock website shows angle plugs on the E-Street page, and I can't find any other pics of these heads on their website. Subscribed, as I'm building a HP manifold engine myself... Clair Yes
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
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Re: Building a HP 440 with Factory Manifolds
[Re: Mr D21]
#2443585
01/30/18 05:54 PM
01/30/18 05:54 PM
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Joined: Feb 2003
Posts: 2,822
Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,822
Sobieski Wi
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Fel Pro MS90425 Exhaust Manifold Gaskets With Heat Shields
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
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Re: Building a HP 440 with Factory Manifolds
[Re: bee1971]
#2443595
01/30/18 06:06 PM
01/30/18 06:06 PM
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Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
Clair_Davis
master
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master
Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
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Edelbrock E Street 84cc heads have straight plugs. Are the 75cc heads angle-plug? The Edelbrock website shows angle plugs on the E-Street page, and I can't find any other pics of these heads on their website. Subscribed, as I'm building a HP manifold engine myself... Clair Yes Ok, I didn’t ask that well- it looks like all the e-sreets are angle plug on the EB website, but some are clearly straight. Is the EB website wrong, and are the 84cc heads actually straight? Angle plugs don’t work with c-body hp’s and I need to go with straight plugs. Thanks, Clair
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Re: Building a HP 440 with Factory Manifolds
[Re: Mr D21]
#2443608
01/30/18 06:35 PM
01/30/18 06:35 PM
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Joined: Jan 2003
Posts: 14,545
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,545
So. Burlington, Vt.
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I don't know if the 84cc E Street heads were always straight plug, but they are now...... And there is a foot note in the catalog saying so.
The 75cc version are still angled plugs.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Building a HP 440 with Factory Manifolds
[Re: fast68plymouth]
#2443716
01/30/18 10:13 PM
01/30/18 10:13 PM
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Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
Clair_Davis
master
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master
Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
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I don't know if the 84cc E Street heads were always straight plug, but they are now...... And there is a foot note in the catalog saying so.
The 75cc version are still angled plugs.
Perfect, thank you! Too bad EB doesn't have that note on their e-street page - kind of important, and was going to cost them a sale. I've been banking on using the Source Stealth heads on my stock-appearing build because they were about the only straight-plug option. The USA-made E-streets also flow a little better OOTB, too. Thanks again! Clair
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Re: Building a HP 440 with Factory Manifolds
[Re: Harry's Taxi 2]
#2445093
02/02/18 08:23 AM
02/02/18 08:23 AM
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Joined: Jul 2003
Posts: 5,188
upstate western ny
sogtx
master
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master
Joined: Jul 2003
Posts: 5,188
upstate western ny
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How do you guys get around the plug clearance problem with Edlebrock heads and HP manifolds? Don't the angled plugs get really close to the heat? I used the Mopar 452 heads (straight plug version of the Edelbrocks). There is a lot more clearance with the straight plug heads. Previously I had run the angle plug heads and had problems burning up one or two of the spark plug leads so I switched heads. What you really want from a clearance standpoint is an angle plug head on the driver side and a straight plug head on the pass side. That would work the best for the spark plug wires. Andy, a little off the topic, but where did you get those exhaust gaskets? i know that ehrenberg sells those gaskets Is there another source ?
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