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02-02-2003, 01:00 AM
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#1 |
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Workaholic
Join Date: Oct 2002
Location: Katy, TX
Posts: 1,589
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Which spark plugs?
I have a '90 TBI engine in my 79 K10--edelbrock manifold and 1406 carb. Should I buy plugs for a 1979 5.7l engine or for a 1990 5.7l????????
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1979 K-10 Silverado (work in progress) 1991 V1500 Subruban 1999 Suburban LT 4x4 2006 Suburban LTZ (daily driver) |
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02-02-2003, 01:20 AM
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#2 |
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Registered User
Join Date: Oct 2002
Location: Edmond, OK
Posts: 5,906
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i would say a 90 5.7.
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Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call |
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02-02-2003, 02:24 AM
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#3 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Since you have a HEI I would buy the 79. Are they pregapped?
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02-02-2003, 06:19 PM
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#4 |
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I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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I disagree G. I would get for the 90 since the spark plugs may be different for the different heads.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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02-03-2003, 04:09 PM
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#5 |
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Workaholic
Join Date: Oct 2002
Location: Katy, TX
Posts: 1,589
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Physically speaking, either plugs will work but I think I will go with the ones for the '79 because I think the ignition system (HEI) would be a more relevant factor than the newer heads--I don't think there's too much difference in the heads.
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1979 K-10 Silverado (work in progress) 1991 V1500 Subruban 1999 Suburban LT 4x4 2006 Suburban LTZ (daily driver) |
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