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04-22-2002, 08:18 PM
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#1 |
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14.1 @ 96MPH
Join Date: Jul 2001
Location: Mesa, AZ
Posts: 2,811
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Plugs for an HEI setup?
I figure if I'm going to pull the plugs on my engine, I'll go ahead and replace them, they're cheap enough. It's just a more-or-less stock 1970 350, original in the truck...I believe the standard plugs with .035 gap are ACDelco R43's? Do they make that plug with a .050 gap instead? (because I'm just lazy like that and if the cost is no different, why not... =)
------------------ Project 1970 - soon to be seen at http://milhouse.treylis.org:81/
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Project1970 - LS1 Swap Complete! 
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04-22-2002, 08:39 PM
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#2 |
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Registered User
Join Date: Feb 2002
Location: Greene, Iowa
Posts: 150
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plugs aren't gapped from the factory
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70 3/4 ton 4x4 FOR SALE Greene, IA |
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04-22-2002, 08:44 PM
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#3 |
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Registered User
Join Date: Aug 2001
Location: rock island,il,usa
Posts: 5,382
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If you are running the washer seat plugs,I think it was a 45 that I used(its been a while). At any rate, use the plug that the truck calls for,& open the gap to .045 & you should be ok........69
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http://community.webshots.com/user/hotrodhorn |
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04-22-2002, 09:22 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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I wouldn't go to .050...that is a good way to burn up plug wires and coils.
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
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04-22-2002, 10:08 PM
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#5 |
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Registered User
Join Date: Apr 2002
Posts: 1
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The AC Delco plugs with the "X" after the number refers to extra wide gap. FYI, "T" designates tapered, and "S" extended tip. Hope this helps you, Chumley
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04-22-2002, 10:14 PM
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#6 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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I'm using ac r45t plugs with .045 gap on mine.
------------------ Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s Angel girl: 67 Cutlass convertible 330, 3spd stick Greener: 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE no name yet: 72 442 under serious construction
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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