C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Anyone with Hooker Headers

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Old Feb 18, 2005 | 02:47 PM
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Default Anyone with Hooker Headers

Will I have more spark plug and wire clearance with angle plug or straight plug heads, with Hooker 2151's. 1985 Corvette L98 Thanks
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Old Feb 18, 2005 | 02:59 PM
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I have hooker super comps and Canfield Alum heads , angle plug and have no problems with NGK or outolite plugs....which are a touch shorter than the A/C Delco's
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Old Feb 18, 2005 | 04:22 PM
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Definatly more clearance with angle plug heads as the plugs are angled away from the exhaust tubes.
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Old Feb 18, 2005 | 06:50 PM
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Your '85 came with straight plug heads. Hookers don't fit heads with the AFR angle.

RACE ON!!!
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Old Feb 18, 2005 | 07:21 PM
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The Hooker 2151 won't work with straight AFR's!
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Old Feb 18, 2005 | 08:05 PM
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I have the Hooker 2149's on TrickFlow 23degree heads. The heads have angled plugs and they clear the 2149's fine. Don't know if that helps any.
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Old Feb 18, 2005 | 08:14 PM
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I have the 2151-1's with AFR 210 w/L98 angle plug and they all clear OK except # 4 and # 5.

FWIW, I spoke with AFR in person in INDY in December and they say the Heddmans are the best fitting header for AFR heads.


If you really want Hookers, headers that is, do what I did, cut the #4 and #5 tubes off and heliarc weld two new tubes in with ample clearance then have them ceramic coated. They only needed to extend @ 3/4 inch farther out to clear nicely, so thats what we did.
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Old Feb 19, 2005 | 03:49 PM
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Are the angles different between L98 and regular angle plug AFR Heads? It can't be that much of a difference. So I guess my Hookers won't bolt up to a regular AFR Angle plug head? What about Brodix or Dart?
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Old Feb 19, 2005 | 04:11 PM
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The footnote in the Hooker catalog, only addresses the AFR heads.

RACE ON!!!
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Old Feb 19, 2005 | 04:52 PM
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Originally Posted by pipe
Are the angles different between L98 and regular angle plug AFR Heads? It can't be that much of a difference. So I guess my Hookers won't bolt up to a regular AFR Angle plug head? What about Brodix or Dart?
Do not get straight plug Dart's,,,been there,,, done that,,, wont work. Gotta get angle Darts.
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