Burnt Spark Plug Boot

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05-22-2003, 03:42 PM

DJP87Z28

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Car: 1987 Black IROC-Z (SOLD)

Burnt Spark Plug Boot

Just replaced the 90 deg boot for the second time in the last six months. Anyone else having this problem with SLP headers and the #8 Plug boot being burnt though?? Also anyone using the LT-1 metal spark plug shields
to prevent this?? And will they fit?? Appreciate any info thanks.

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05-22-2003, 03:45 PM

Auggie

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Car: 1984 Z28 Camaro

Engine: H.O. 355 NOS

Transmission: 700R4

Are you useing the shortie spark plugs?

Auggie

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05-22-2003, 03:56 PM

DJP87Z28

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No, regular A/C Delco plugs. And just this one plug location.

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05-22-2003, 04:02 PM

Auggie

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Car: 1984 Z28 Camaro

Engine: H.O. 355 NOS

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Well, I have SLP headers and had the same problems. I bought a set of NGK-UR5 plugs from Fleet Farm. They are shorter, one heat range colder and problem solved.

Auggie

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05-22-2003, 04:04 PM

DJP87Z28

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Thanks and will keep that in mind.

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05-22-2003, 04:17 PM

Marc 85Z28

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What AC plug are you using? I've got R45TS on mine and have had no problems with the boots burning through in over a year with my non-coated SLPs. I replaced plug wires with my Edelbrocks like crazy though.