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08-28-2019, 05:47 PM
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#1 |
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Registered User
 Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Spark plug indexing
How many of u fellas index your plugs.
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I BELIEVE IN JOHN 3:16 |
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08-28-2019, 06:02 PM
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#2 |
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Senior Member
Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Spark plug indexing
https://www.enginelabs.com/news/gett...-indexing-101/
https://www.summitracing.com/parts/m...RoCl6cQAvD_BwE
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 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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08-28-2019, 06:09 PM
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#3 |
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Senior Member
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,227
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Re: Spark plug indexing
I did it religiously back in my hot-rod days....
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1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. 
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08-28-2019, 06:11 PM
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#4 |
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Registered User
Join Date: Apr 2015
Location: Weatherford Oklahoma
Posts: 53
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Re: Spark plug indexing
I did it for race engines, not so much anymore.
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08-28-2019, 06:55 PM
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#5 |
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Registered User
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: Spark plug indexing
Yep, gap to int. Valve.
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I BELIEVE IN JOHN 3:16 |
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08-28-2019, 07:15 PM
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#6 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 977
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Re: Spark plug indexing
How many sets of plugs do you have to buy to get them properly located?
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08-28-2019, 07:56 PM
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#7 | ||
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Registered User
Join Date: Mar 2016
Location: Long Island NY
Posts: 598
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Re: Spark plug indexing
Quote:
Quote:
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1967 C10 LWB 250 6cyl 3ott Panaramic cab “Layla” 1967 Camaro 327 ‘glide cruiser “Bailey” |
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08-28-2019, 07:59 PM
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#8 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 977
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Re: Spark plug indexing
Oops, I didn't click the links! I did not know they made washers for a tapered seat.
Thanks for the clarification. |
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08-28-2019, 08:17 PM
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#9 |
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Registered User
 Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: Spark plug indexing
You only need to index your plugs in a high horse power, high compression engine.
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08-28-2019, 08:19 PM
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#10 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,178
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Re: Spark plug indexing
Only on the race cars we had.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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08-28-2019, 08:25 PM
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#11 |
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Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,915
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Re: Spark plug indexing
Before hei yes not really a benefit anymore.
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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08-28-2019, 08:27 PM
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#12 | |
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Registered User
Join Date: May 2011
Location: mich
Posts: 656
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Re: Spark plug indexing
Quote:
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08-28-2019, 08:58 PM
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#13 |
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Registered User
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: Spark plug indexing
It helps any engine, some more than others plus its dirt cheap
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