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

AFR heads?

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Old May 22, 2002 | 02:45 PM
  #1  
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Default AFR heads?

Is it better to use a straight lug or angle lug with these heads ? I have heard that with angle lugs certain headers won't fit is this true?
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Old May 22, 2002 | 03:52 PM
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Default Re: AFR heads? (daddydahlin)

Is the "p" not working on your keyboard? The sparkplug orientation is what's being refered to when straight or angled is mentioned. Some heads have the plug in at an angle and others have the plug coming straight out. It depends on the application. Go with what is currently on your car. If they are straight, then get straight.


[Modified by fiddleplayer, 1:55 PM 5/22/2002]
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Old May 22, 2002 | 06:29 PM
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Default Re: AFR heads? (fiddleplayer)

AFR makes 3 different types. Straight plug, angle plug, and L98 angle plug. You need the L98 angle plug.

The header problems you are referring to are from the regular angle plug heads not the L98 angle plug version.
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Old May 22, 2002 | 11:21 PM
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Default Re: AFR heads? (LPDesRoche)

YOU NEED THE L98 PLUGS FOR SURE!

That was typed in caps for a reason. Too many people have been getting the wrong ones then having problems.

I would also recommend searching for a few of my archieved posts on my project. Many other issues need to be answered before ordering.

Do a search and if you need any clarification let me know.

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Old May 23, 2002 | 12:39 AM
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Default Re: AFR heads? (ski_dwn_it)

I HAVE THE REGULAR ANGLE PLUGS AND WAS FINE WITH EITHER FACTORY HEADERS OR AFTERMARKET HEADERS :D
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Old May 23, 2002 | 03:48 PM
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Default Re: AFR heads? (CORKVETTE1)

What's the diff between 'L98 Angle' and 'Angle'???? :confused:
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Old May 24, 2002 | 12:23 PM
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Default Re: AFR heads? (GRX)

The L98 angle almost looks straight but it isn't, slight angle. The angle plug heads are more severe angles. I have L98 angles on my 383 and the hookers bolted up fine on the engine stand.
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Old May 24, 2002 | 04:48 PM
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Default Re: AFR heads? (Fastguy)

Why the L98 angle? To clear L98 header manifolds? :confused:
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