Re: Edelbrock RPM Heads and Hooker Headers Fit?
[Re: 67Satty]
#1265574
07/11/12 07:23 AM
07/11/12 07:23 AM
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Joined: Oct 2006
Posts: 248 Cranberry Twp PA (North of Pit...
rumblefish72
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enthusiast
Joined: Oct 2006
Posts: 248
Cranberry Twp PA (North of Pit...
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You don't mention your combination (B/RB/LA). I went to Performer RPM's 8 years ago on my stroker B engine. To my surprise, my Hooker Headers were tight as far as spark plug clearance. I believe that the #1 cylinder was the biggest problem. The earlier design hookers were designed for heads with straight out spark plug orientation. The RPM's have angled plugs. I had to make a little jig for my press and dimple a few of the tubes. As I mentioned, the #1 cylinder was the biggest problem because the header tube exits the exhaust port at the same angle as the spark plug end. So the spark plug insulator and plug wire tip ran parallel (underneith) with the header tube. That required a bigger dimple to create clearance for the plug wire connector end. I wasn't about to beat my nice polished ceramic coated Hooker header with a ball pean hammer so I made a tube holder out of wood (oak) and a little metal thick wall tube welded to a tube that slid over the tip of my press. I pressed a dimple into the header tube and then test fit and then pressed some more until I had enough clearance to get the plug wire onto the spark plug tip with a decent air gap. I believe that somewhere around 2004, Hooker redesigned their B/RB headers so that they would fit with angled and straight spark plug orientation.
The other issue I ran into was that the exhaust header flange hit the tops of the ARP cylinder head stud kit. I had to trim the nice allen head end of the stud down so it would clear.
I found a picture in my archive ... you can see that the plugs are in the odd numbered cylinder head and the #1 plug wire is attached. I'm pretty sure I took this picture right around the time I was trial fitting the headers to my new Eddy RPM cylinder heads.
Last edited by rumblefish72; 07/11/12 03:32 PM.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: Edelbrock RPM Heads and Hooker Headers Fit?
[Re: Jwilli500]
#1265576
07/11/12 03:46 PM
07/11/12 03:46 PM
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Joined: Oct 2007
Posts: 288 Birmingham, England
Mick70RR
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enthusiast
Joined: Oct 2007
Posts: 288
Birmingham, England
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Friend of mine runs 1 7/8" Hooker headers on his 440 with Edelbrock RPM heads and he had no clearance problems. Thing is, they don't look like the headers in the picture above. No.1 tube runs across the top of the other three tubes on that side.
1970 Road Runner
505 cid
MCH CNC ported Stealth heads
MP 528 camshaft
4 speed
GV overdrive
11.98 @ 117 on street treads
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Re: Edelbrock RPM Heads and Hooker Headers Fit?
[Re: Jwilli500]
#1265578
07/11/12 04:42 PM
07/11/12 04:42 PM
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Joined: Oct 2006
Posts: 248 Cranberry Twp PA (North of Pit...
rumblefish72
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Joined: Oct 2006
Posts: 248
Cranberry Twp PA (North of Pit...
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I was fitting a set of Super Comps ... I believe the part# is 5209. I just looked them up on the Holley Website: http://www.holley.com/5209-1HKR.aspThe picture shows the tubes running the same basic way as the tubes on my year = 2002 headers. My tubes are 2" X 32" and the collector is 3-1/2" diameter. The original post mentioned 3" collectors so we're not talking about the same part#. I seem to remember a footnote on these headers mentioning angled plugs. I looked up part# 5209 and saw footnotes #4 and #200 ... #200 talks about fit issues with B1 heads and angled spark plugs. I thought they did a redesign for angled plugs but I guess not. But ... I also saw another footnote (#205) mentioning Accel shorty plugs. I planned to run NGK plugs ... I'll have to take a look at the shorty plugs ... a short plug would be a big help with my #1 cylinder.
Last edited by rumblefish72; 07/12/12 07:04 AM.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: Edelbrock RPM Heads and Hooker Headers Fit?
[Re: 67Satty]
#1265582
07/15/12 08:07 PM
07/15/12 08:07 PM
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Joined: Feb 2004
Posts: 153 San Diego
Redsled
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member
Joined: Feb 2004
Posts: 153
San Diego
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I run a set of #5903 Hooker Comps in my 66 Coronet w/a 440 & Eddy RPMS. I dinged the underside of cyl # 2 for 90 deg plug wire clearance,and both sides to get a little room past the torsion bars. They've been on the motor for 10 years w/ no problems. I overdid it a little, it's not as bad as it looks......First time dinging a set of tubes.
Last edited by Redsled; 07/15/12 08:09 PM.
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