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Old 04-22-2002, 08:18 PM   #1
Project1970
14.1 @ 96MPH
 
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Post 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... =)

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Old 04-22-2002, 08:39 PM   #2
704x4
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plugs aren't gapped from the factory
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Old 04-22-2002, 08:44 PM   #3
69 longhorn
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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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Old 04-22-2002, 09:22 PM   #4
Longhorn Man
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I wouldn't go to .050...that is a good way to burn up plug wires and coils.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
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FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
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Old 04-22-2002, 10:08 PM   #5
Chumley
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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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Old 04-22-2002, 10:14 PM   #6
O'l Buck
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I'm using ac r45t plugs with .045 gap on mine.

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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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00 Dodge 2500 4x4, 24V cummins, 5 speed

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