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Spark plugs

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Old Mar 26, 2023 | 01:57 PM
  #1  
65panhed's Avatar
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From: OKC Oklahoma
Car: 1984 Z28
Engine: L69 305 HO
Transmission: 5 speed manual
Axle/Gears: Auburn pro yukon 3.73 gears and axl
Spark plugs

What would a correct sprk plug be for 1984 Z with 113 heads 305 HO w/ XE 256-10 cam? I'm running plugs for 90 vette, AC FR5LS. 6210-3 double pumper, Full MSD ignition.
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Old Mar 26, 2023 | 02:30 PM
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From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Spark plugs

AC Delco R45...
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Old Mar 26, 2023 | 02:45 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Spark plugs

FR5LS would be correct for 88-91 Vette 113 head
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Old Mar 26, 2023 | 05:38 PM
  #4  
65panhed's Avatar
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From: OKC Oklahoma
Car: 1984 Z28
Engine: L69 305 HO
Transmission: 5 speed manual
Axle/Gears: Auburn pro yukon 3.73 gears and axl
Re: Spark plugs

@TL no I would have really screwed up plug threads.
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Old Mar 26, 2023 | 06:56 PM
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T.L.'s Avatar
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Joined: Sep 1999
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From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Re: Spark plugs

Originally Posted by 65panhed
@TL no I would have really screwed up plug threads.
Sorry, was thinking of 305 heads...
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Old Mar 26, 2023 | 07:30 PM
  #6  
65panhed's Avatar
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From: OKC Oklahoma
Car: 1984 Z28
Engine: L69 305 HO
Transmission: 5 speed manual
Axle/Gears: Auburn pro yukon 3.73 gears and axl
Re: Spark plugs

No prob! I was wonderin how the plug works on a 305? They seem to run great, and look ok!
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