Answer Save. Chevrolet recommends changing your HHR's spark plugs every 100,000 miles. This not only cuts down on parts needed, but makes for a much more efficient ignition system. The Chevy HHR uses a modern electrical distributorless ignition system, meaning that it does not utilize a distributor and spark plug wires, but instead a coil pack to deliver controlled electrical power to fire the spark plugs. Customer Satisfaction Guarantee Technician Warranty Has this feature Depends on manufacturer or part number No precious metal .4MM not OE design Double Iridium Spark Plugs Not all spark plugs are created equal. With three specialty plugs, hp dropped 1.5-2hp. The spark plug is what started it all for ACDelco. 1st question: Gap - Manual says .043". This is a discussion on AC Delco 9mm wires & AC Delco Iridium plugs within the External Engine forums, part of the LSx Technical Help Section category; I read the sticky above ... but could not find any mention of the 9mm wires from Ac Delco. • The new spark plug, P/N 12571164 with AC Delco P/N 41-985, is gapped to 1.01 mm (0.040 in) when the spark plug is made. Adjusting the distance between the two electrodes is called gapping your spark plugs. Wiki User Answered . ac delco spark plugs. In most cases, that gap is indicated on the package. Re: ac delco spark plugs. Hi, so I recently recieved my acdelco professional 41-110 spark plugs from amazon today as well as my round gapping tool. Does this mean they are pre-gapped to what it should be at [.060 inch] Also does it need a special torque rating or can u just tighten then do another 1/4 turn? 0 0. 94 replacement spark plugs for AC Delco R44LTS. so I searched through the Forums and find Gaps of .045 to … Yes they usually come pre-gapped but during shipment they can be knocked around, So I'd always check to be sure they're properly gapped with the specs. OEM LF4/LF3 spark plugs are AC Delco 41-147, 12662396, iridium, gapped between .030 and .035″. I'll be able to torque the front plugs, but not the rear due to the intake. See Answer. These Double Platinum Spark Plugs are the high quality replacements for many vehicles on the road today. Notice: The spark plug gap is set during manufacturing and should not be changed or damage to the spark plug may result. In most cases, that gap is indicated on the package. ... New Listing 6 pc Champion Iridium Spark Plugs for 2011 Saab 9-4X - Pre Gapped Ignition dp. From the old to the new and even the nonautomotive, ACDelco has spark plugs to fit just about every need. 9 Answers. Changing the plugs this weekend with OEM: AC Delco: 41-109. Son of a bitch! In short, if you want your GM car to run well - spend the literal couple of extra $ and get AC Delco plugs. Gap new as well as old spark plugs, even if the package says that the new plugs are “pre-gapped.” To avoid problems, work … If the gap is adjustable and different from the gap specified by the engine manufacturer, it needs to be adjusted. Engine spark plugs are responsible for igniting an engine's air-fuel mixture, a process that creates engine power. When it comes to replacing your spark and glow plugs, ACDelco offers a full line of Professional premium aftermarket and Specialty spark and glow plug products. 1 decade ago. Brand New. A list of some of the most common symptoms of incorrectly gapped spark plugs is laid out below. C $50.41. C $6.72. 2012 Impala LTZ - 3.6L. We stock these Spark Plugs brands for the Chevrolet P30: AC Delco, E3 Spark Plugs, NGK, DIY Solutions, Denso, Autolite, Bosch, SKP and Motorcraft. The proper AC Delco plug for 2000-2004 is #41-987, for pre-2000 it's #41-950. AC Delco 9mm wires & AC Delco Iridium plugs. ACDelco RAPIDFIRE platinum spark plugs fit engines that require conventional or platinum plugs—offering quicker throttle response, smoother idle, better corrosion protection, and greater longevity when compared to conventional plugs. Now, Iv never gapped or changed plugs before, thought id save some money and try it out myself. Find ACDelco 19307138 ACDelco RAPIDFIRE Performance Platinum Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! After reassembly, the engine fired instantly and ran much smoother at idle. Brisk Silver Racing spark plugs are a better option than Denso or NGK iridium spark plugs for those wanting a plug that’s pre-gapped and offers maximum performance. With the original plugs, now gapped at 063, hp increased to 186. I bought AC-delco's spark plugs and was wondering if the factory gaps them to specs before shipment? 350 vortec engines use a 41-993 ac-delco plug pre-gapped at 0.060. They burn clean and last a long time. 0 1 2. Set Of 6 Spark Plugs Pre-Gapped .060 AcDelco For Buick Chevy Pontiac GMC V6 APPLICATIONS Cadillac Allante 4.5 V8 GAS FI -cc, 8, -, , Original Equipment GAP .060 1989 - 1990 Then Jacobs installed one of his ign systems. When you buy your AC-Delco recommended spark plugs, the person who identified the spark plugs for you at the parts shop can find the gap on the computer he used to identify, and gap them for you. 2013-01-08 11:30:17. Unfollow ac delco 41-985 spark plugs to … Mar 22 2013, 10:13pm. I installed the new AC Delco plugs and they threaded in MUCH easier. Customer Satisfaction Guarantee Technician Warranty Has this feature Depends on manufacturer or part number Double Platinum Spark Plugs Not all spark plugs are created equal. Spark Plug Gap on AC Delco 41 110 Irradium Plugs. Split Fire plugs achieved 184 hp but required 067 gaps. No, right here right now. NGK iridiums for my truck are the exact same plug as the AC Delco plugs. 1 product rating - AC Delco Spark Plugs R44LTS set of 2. Relevance. AC delco are a supplier for chevy that happen to make spark plugs denso are a japanese company that also make spark plugs NGK... make spark plugs there could be any number of differences between your 2 plugs, but without the part numbers that go with them, could be anyones guess. ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. If the gap is adjustable and different from the gap specified by the engine manufacturer, it needs to be adjusted. The original plugs in most 2000 - 2002 Northstars were DENSO and the owner's manuals give that plug number. :mad: Are ngk 3403 g-power spark plugs pre gapped(crown Victoria 1999 - Cars & Trucks question Any new spark plug found to not be properly gapped should not be used. Spark Plugs and Wires. Now, with over 100 years of innovation behind each spark plug, you know you’re covered. Welcome to CF !!! The AC Delco plats can be gapped if not properly gapped from the package. Asked by Wiki User. There’s a common misconception that the best choice for replacement spark plugs … Platinum pugs peaked at just under 185 hp with an optimum 066 gap. Pre-Gapped Laser Welded Ground Electrode High Content Iridium Center Electrode 7 Yr. For ... AC R43NTS8 or Motorcraft AWSF42C) to facilitate Moderator edit: Good info, also posted for years in here (Post #13), Deville, and Northstar. Report abuse. Are Ac Delco Spark Plugs pre gaped? Linda. Incorrectly gapped spark plugs can negatively impact engine performance. Set Of 8 Spark Plugs Pre-Gapped .060 AcDelco For Caddy GMC K3500 Chevy C1500 V8 GMC C3500 5.7 V8 CNG FI -cc, Gap .060 1997 - 1999 GMC C3500 7.4 V8 GAS FI -cc, Gap .060 1996 - 2000 The irridium plugs come pre-gapped. That figures,now I am going to have to change them.I have noticed that it hesitates a bit.I didn't think it was the plugs (Bosch platium +4s)though,they are brand new. Top Rated Seller. ! I have a 99 Chevy Tahoe and I just pulled a new set of AC Delco 41-993's spark plugs out of the box and they appear to be gapped at .040 vs the .060 that … Not sure if thats changed in newer models. Favourite answer. Mar 22 2013, 8:53pm. › Change Vehicle Review Fitment Notes to Ensure Proper Fit Unless you are modding the ignition. It says that these are supposed to come pre gapped but i checked all of them and not one of them were at .040 and they were all at random gaps. Spark Plugs Technical Information ... Bosch Spark Plugs are pre-gapped at the factory. Motorcraft spark plugs come pre gapped. If not do not use anything else but a stock delco or a … You need a feeler gauge to gap your spark plugs properly. This is a discussion on Spark Plug Gap on AC Delco 41 110 Irradium Plugs. See cross reference chart for AC Delco R44LTS and more than 80.000 other spark plugs. 7 results for ac delco 41-985 spark plugs Save ac delco 41-985 spark plugs to get e-mail alerts and updates on your eBay Feed. Go with these and FYI Ac Delco plugs come in a four pack or singles I suppose. It should be noted that you should ALWAYS check the gap prior to installation to verify that it is within specifications. With same stock plugs, same 045 gap, hp increased to 180.5. Images in this review 6 people found this helpful. Hi All, I've searched and searched but haven't found concrete info. The #1 Seller of Genuine Champion Plugs on eBay. within the General Help forums, part of the LSx Technical Help Section category; O.K. For ... AC R43NTS8 or Motorcraft AWSF42C) to facilitate Spark Plugs Technical Information ... Bosch Spark Plugs are pre-gapped at the factory. I cleared the misfire codes and they have not returned. Top Answer. Pre-Gapped Laser Welded Ground Electrode 5 Yr. AC Delco is all I will use in my GM vehicles. Plugs save AC Delco 41-985 spark plugs Delco 41-147, 12662396, Iridium gapped... Be properly gapped should not be changed or damage to the intake same 045 gap hp... My GM vehicles old to the new and even the nonautomotive, ACDelco spark... Torque the front plugs, now gapped at 063, hp increased to 186 the AC spark. Torque the front plugs, same 045 gap, hp increased to 180.5 question: -. Ground Electrode high Content Iridium Center Electrode 7 Yr called gapping your spark plugs pre-gapped... 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