Should already be pre-gapped, but check them anyway.
Hemi Plug Gap .043thds

 

Hounddog, glad to hear you're running the Iridium Autolites without issue, CEL, etc. How was the factory gap out of the box? Plan on following in your footsteps.

 

Adjusted a few a little bit. The plugs that cause issues are a 'pulse duration' plug what ever that is. Like those E3 whatever and a few other brands. GM has a tech bulletin out on such. Besides running issues they cause charge system issues on GMs. Been some Corvette owners replacing battery's and alternators and not fixing issues over spark plugs. Has to do with voltage bleed. The factory 5.7 Hemi Hy bred plug is a 100,000 mile NGK double platinum. You can still only get it over a Chrysler parts counter. NGK keeps saying it will be available aftermarket soon. They been saying that way over a year. But the fact is unless a Hy bred or a 6.1 Hemi they put the cheap plug in them. I was fixing to order the 5.7 double platinum and did some calling to the plug manufactures tech assistance. After some investigations I went with Autolite Iridium. Quality and price.Final cost to me on them was in the $4.00 each range. Autolite rebate coupon is good through end of the year.

 

Just for future reference you should be able to look under the hood to see what proper gapping is. There should be a sticker that has that information on it.

 

found some news on the spark plugs - wonder which ones they are? The ones that the SRT8's already use?
http://www.autoblog.com/2011/11/08/r...-five-o-a-5-7/

Ram Truck Brand Offers Special Services Police Truck for Extreme Duty Cycles

• New Ram 1500 Crew Cab 4x4 Special Service package offers special equipment to support police and other emergency services
• Additional door support allows for installation of ballistic material inside front doors
• Added Power Distribution Center (PDC) and 220-amp alternator supports high-amp drawing systems and accessories
• Package includes 5.7-liter HEMI® V-8 with 390 horsepower/407 lb.-ft. torque, 3.92 axle ratio and four-wheel-drive
• 5 year/100,000-mile powertrain warranty

Starting this month, Ram Truck will be offering a new Ram 1500 Crew Cab 4x4 Special Service package for law enforcement and other emergency agencies through Chrysler Group Fleet sales. The newest Ram model features a selection of severe-duty-adapted equipment available on the 2012 Ram 1500 and several unique features.

Made for extreme-duty cycles, emergency and municipal service trucks are sometimes left idling for extended periods of time. The Ram 1500 includes 100,000-mile sparkplugs and a larger oil cooler to protect the engine during the unforgiving stop-and-go operations associated with first responders.

 

More then likely the NGK Double Platinums that are used in the 5.7 HyBred and the 6.1 Hemi

 

Replaced my OEM plugs at 50k and they looked fine. Prob could go another 50k with them.