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[ 10 posts ] |
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socofn
Official CCB Member
Joined: Sat Apr 02, 2011 11:52 am
Posts: 204
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Location: Pueblo County
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 Plug size In amongst my other issues i found that I have two different size spark plugs, larger on the drivers side. I will post pictures of the plugs side by side when the wife brings the camera home. Not sure why the PO did this. JP 
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74, MONEY EATER
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| Wed Apr 27, 2011 6:24 pm |
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airbur
Official CCB Member
Joined: Wed Sep 29, 2010 8:39 am
Posts: 1721
Images: 0
Location: Castle Pines, CO
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Re: Plug size Are you sure they are different sizes or maybe just different brands/types? All be threads should be he same on the block.
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Sold: 1970 w/427W Injected Stroker
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| Wed Apr 27, 2011 7:49 pm |
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Moab Mike
Official CCB Member
Joined: Mon Jan 03, 2011 2:59 pm
Posts: 1940
Location: Witness Protection Program
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Re: Plug size
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| Wed Apr 27, 2011 8:29 pm |
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cobshane
Official CCB Member
Joined: Sat Nov 13, 2010 12:31 am
Posts: 516
Images: 1
Location: littleton
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Re: Plug size
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| Wed Apr 27, 2011 8:46 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: Plug size Weren't there different size plugs required for some different years of heads? If so, wonder if this motor is running two separate years/styles of heads.
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Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Wed Apr 27, 2011 8:51 pm |
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socofn
Official CCB Member
Joined: Sat Apr 02, 2011 11:52 am
Posts: 204
Images: 0
Location: Pueblo County
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Re: Plug size Different size (diameter) bigger around. Yes they were on the left/drivers side. The guy I bought it from had it for 6yrs and never did anything with it as he has a Moab special. I replaced the ones on the right side and re-gapped the other ones. I will buy replacements when I get a chance. No way it is running as both fuel tanks are lying on the garage floor. JP
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74, MONEY EATER
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| Wed Apr 27, 2011 9:24 pm |
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Shawns Fords
Official CCB Member
Joined: Sat Oct 02, 2010 7:36 pm
Posts: 779
Images: 0
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Re: Plug size My 68 302 4V head had larger plugs 13/16" than later models 5/8" I used to know this all by heart but have lost memory from many various brands of wobbly pops. more than likely someone changed a head out when another one was broken somewhere down the road.
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| Wed Apr 27, 2011 9:26 pm |
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socofn
Official CCB Member
Joined: Sat Apr 02, 2011 11:52 am
Posts: 204
Images: 0
Location: Pueblo County
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Re: Plug size That is what I kinda figured, someone along the line replaced a head. I will make it work till I can get the funds together to replaced the engine. JP
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74, MONEY EATER
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| Wed Apr 27, 2011 9:30 pm |
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Viperwolf1
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Re: Plug size Yep, someone swapped a head. Early plugs were 18mm thread and later plugs were 14mm. The change was sometime mid-70's.
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| Wed Apr 27, 2011 9:58 pm |
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Moab Mike
Official CCB Member
Joined: Mon Jan 03, 2011 2:59 pm
Posts: 1940
Location: Witness Protection Program
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Re: Plug size
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| Wed Apr 27, 2011 10:19 pm |
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