of 61, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. May 17, 2023 You are using an out of date browser. They are B7ES. The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or whether it provides resistance to heating up (cold). "For NGK, the higher the number, the colder the plug". International Customer Options|In the United States? Check for correct application and spec/measurements. Reach, Resistor, Each, 4.71 out of 5 stars Never miss a sale on new parts, tools, and more! ( 22 ), 5.0 out of 5 stars ( 3 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. For the NGK UR5 spark plugs recommended for our cars, mine being basically stock and running about 15# of boost.. Is there a particular part number listed other than UR5. The . USD 19.30. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. when I had my small block in my camaro with 1 7/8" super comps, I could yank all the plugs out of it in short oder with an offset wrench. ( 1 ), Spark Plug, GP Platinum, 14mm Thread, .460 in. Jun 1, 2005 21,549 Scott from Hamilton, NJ. I've always used AC Delco plugs in my 70 Z28 with the stock LT1 engine. NGK Spark Plug 7401 4pk Iridium IX UR4IX 14.00mm .460 Tapered STD Resistor. Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: Nickel alloy Electrode Core Material: Copper Center Electrode Type: Projected Spark Plug Seat Style: Tapered Wrench Diameter: 5/8 in. The spark plug Cross References are for general reference only. It is a common misconception that spark plugs create heat. It is essential to use a spark plug that fits a specific engine and its conditions of use. Please refer to our application listings for full details. I've been using NGK lately but on Delco, the higher the number, the hotter. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .708 in. NGK V-Power Spark Plug UR5 (6 Pack) for PONTIAC FIERO GT 1985-1988 2.8L/173 . You are using an out of date browser. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars ( 1 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, 26.5mm Reach, Resistor, Each, Estimated Ship Date: ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Nov 25, 2003 1,108 . That is very nice info for a reference. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. I ran UR6 once and the seem to foul out in about 2 months of drag racing. Thanks. Here, R5671A represents the plug type and -11 represents the heat range. Reach, Projected Tip, Resistor, Each, 4.88 out of 5 stars This means the spark plug will heat up easily and reach its optimal operating temperature. ( 4 ), 5.0 out of 5 stars Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. USD 27.05 . Google NGK spark plug heat range. Stay Updated with Emails from Summit Racing. ): 0.460 in. it was the only way to go. Typically the heat range for NGK Spark Plugs varies from 2-11. Reach, Resistor, Each, 3.0 out of 5 stars Hex, Projected Tip, Resistor, Each. Ships Today. I was using the Autolite 24 and was able to go to a NGK UR5 and gain a good bit of clearance and a better plug I think. order Set (8pcs) NGK V-Power Spark Plugs Stock 2771 Nickel Core Tip Standard 0.040in UR5 . For a better experience, please enable JavaScript in your browser before proceeding. Lifetime Gold Member. The pictures below are an AC Delco R43, and an NGK XR5 V Power both of which are the correct plug for my application. Reach, 5/8 in. Only street driving duty here, but no issues. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. Thanks for the reply ill try and find some UR-5's and see how it runs, when ever i look online at auto parts stores at the ur-5 application chart it does not mention the 455 will they fit just like a ur-4? Just went and bought some UR5s. Find an Automotive Service Professional Results 1 - 25 If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup. You can order this part by Contacting Us. ( 15 ), Estimated USA Ship Date: Sorry to dig up an old thread, but how about the Accel 0576s? Reach, 5/8 in. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. The heat range seven doesn't have the projected tip like the fives do. NGK Spark Plugs #FR5. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. For the best experience please upgrade or visit the site on another browser. loyalty program I havent used UR5 plugs. Nothing wrong with using a UR5(2771)plug with alky. Hex, Projected Tip, Resistor, Each, 4.96 out of 5 stars NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size . May 26, 2023 COLD MEDIUM HOT Racing Plug Number Old Racing Plug Number Champion NGK AR12 12 RV9YC R5674-7 AR13 13 RV9YC R5674-6 AR23 - RV9YC BPR6FS AR24 - RV12YC BPR6FS AR25 - RV15YC4 UR4 AR32 32 RF9YC AP8FS AR33 33 RF9YC AP7FS . Conversely, a high heat range (or cold) spark plug has a short thick insulator nose which will dissipate heat much easier (above right). NGK UR5 2.1875 Wires: MSD 8.5MM . The best answer you can get will come strait from NGK imo. ( 17 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .708 in. (You must log in or sign up to reply here. 4-Pack PN Plug Style. I was just searching shorty plugs and tripped on this thread. Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. Reach, Tapered Seat, Each, 5.0 out of 5 stars Offline: EFI Slant 6: Joined: Wed Apr 20, 2005 12:22 pm Posts: 490 Location: Missouri City . of 45, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. I could yank all the plugs out of it in short oder with an offset wrench. Estimated International Ship Date: ( 5 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Spark Plug, Traditional, 14mm Thread, .750 in. Is there an NGK chart I can use to cross reference AC Delco plugs to? JOHN 1KWIKSIX Well-Known Member Nov 1, 2016 Thanks, Sam. Never miss a sale on new parts, tools, and more! They are just the opposite of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number. store Today, Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. Copyright 2008-2023 OReilly Here is another to add to the list. the hotter the plug. My XR5's don't hit the pistons, and they work great!! You must log in or register to reply here. Gap a tight .028 and turn it up. NGK is an automotive parts company that was founded in 1936. Visit Vivid Racing and check out all their list of products that will fit your specific needs and vehicles. $5 Off Your $100 Mobile App Purchase - Get the App. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Reach, Tapered Seat, 5/8 in. Several factors influence the heat range of a spark plug, although typically the insulator nose design provides an indication of the heat range of a spark plug. Click here to find a Reach, Projected Tip, Resistor, Each, Spark Plug, G-Power Platinum, Gasket Seat, 14mm Thread, .750 in. Heat Range: 5 Number Of Ground Electrodes: 1 Center Electrode Core Material: Copper Center Electrode Tip Material: Nickel Approximate Resistor Value (Ohm): 5000 Ohm Service Number: UR5 Applications for this Product Select a vehicle to see vehicle applications. Choose brandname and start typing model number. An example of an NGK racing plug is R5671A-11. (40). 5 (29) 4 (14) 6 (2) Get Results; Electrode Tip Material . You might want to see if you can cross reference the R43 plug and see if it crosses to something other than the extended tip XR5. Reach, 5/8 in. http://i25.photobucket.com/albums/c99/supershifter/Picture_1581.jpg. DPR5EA-9 is the part number and 2887 is the stock number. 1-480-966-3040 ): 0.460 in. I agree about the Autolites. Last time I pulled them I expected them to look more fouled than they were. Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars NGK V-Power Spark Plugs UR4. Spark Plug specification is subject to change without notice. Stay Updated with Emails from Summit Racing. NGK has become a global brand is practically visible all over the globe. ( 5 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, 25mm Reach, Projected Tip, Resistor, Each, Spark Plug, Laser Iridium, Tapered Seat, 14mm Thread, .708 in. ( 5 ), 3.4 out of 5 stars If you need a plug with a gasket seat let me know because the numbers will be totally different. The company's drive to continuously innovate itself and its products has helped the automotive industry move forward. 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Reach, 5/8 in. Crown Automotive Jeep Replacement Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng. The 4 is hotter, and the 5 is cooler. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars - NGK Spark Plugs WHY ARE THERE DIFFERENT HEAT RANGES? ( 4 ), 5.0 out of 5 stars Pull the NGK plug out and check the electrode. Today, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Wednesday 4/19/2023 dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. Summit Racing will BEAT any competitor's advertised price! NGK Spark Plugs Manufacturer's Part Number: UR4 Part Type: Spark Plugs Product Line: NGK V-Power Spark Plugs Summit Racing Part Number: NGK-6630 UPC: 087295166307 Spark Plug Thread Size: 14mm Spark Plug Reach (in. The company utilizes the industry's most advanced manufacturing facility. Your knowledge is greatly appriciated! Genuine NGK 7401 UR4IX Iridium IX Spark Plug. Box 772 Sun City, CA 92586 Toll Free Phone Number: 888-800-9629 Out of U.S. call 951-672-8501 NGK-6945 UPC: 087295169452 Spark Plug Thread Size: 14mm Spark Plug Reach (in. My question is this.the electrode on the NGK is substantually longer than the AC Delco plug.will this cause any problems? Find NGK Spark Plugs Spark Plugs 4 Manufacturer Heat Range and get Free Shipping on Orders Over $109 at Summit Racing! Reach, 5/8 in. SamI think the next heat range up is the XR4 for NGK. For even greater performance consider upgrading to a NGK Iridium IX Spark Plug. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars same heat range. I run R44S in my 69 Z and have no problems. The difference between them is heat range. ( 10 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. So would the NGK part number 7052 be the correct yr5 plug? JavaScript is disabled. It is a. JavaScript is disabled. Detailed Description Check the status of your ( 6 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. I use R44S what would the NGK number be to that? I copied this from a website. ( 4 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Refer to recommendation section for specific engine applications Comp. All applications, illustrations and technical information detailed on this site have been assembled based on the latest information available. Hex, Each, 4.86 out of 5 stars ( 21 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. The company has been in the automotive industry for more than 80 years and they specialize in creating original factory parts to aftermarket automotive parts for a variety of vehicles. I have been using them for years at 30 plus psi without issue. Select a vehicle to see vehicle applications. If you have lower compression you might be ok with the UR4's. Reach, Projected Tip, Resistor, Each, 4.91 out of 5 stars If you have lower compression you might be ok with the UR4's. Google NGK spark plug heat range. Since 1936 NGK has lead the industry in technology, innovation and world class design of its entire product line. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. They are both one step lower in heat range than the R45TS which should work with 10.5:1 compression. Terms of Use | Privacy and Security | Site Accessibility USD 34.79. ( 2 ), 4.8 out of 5 stars Estimated International Ship Date: For usage in applications outside of normal use or not listed in this publication, NGK Spark Plug (Australia) Pty Ltd takes no responsibility. Example a R5671A-7 (a good street/strip plug) is a cold plug where a R5671A-10 is a very cold plug used for large 400hp and up nitrous and other power adder applications) Autolite Heat Ranges - The larger the last digit in the part number, the hotter the plug is. NGK-6630 equates to the ur4. Selecting the Right Heat Range. ( 22 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .375 in. Do a search..Some recommend NGK YR5's over the UR5''s . Have you noticed any difference at all over the UR5s? It may not display this or other websites correctly. I like yr5s for alky, and yr5 for no alky 15psi ish boost. May 10, 2023 Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars MSD Cross Reference with NGK Plug Type to . The cross references are for general reference only, please check for correct specifications and measurements for your application. When a spark plug absorbs heat produced from combustion, the heat is transferred through the centre electrode and insulator nose to the metal shell, which then transfers the heat into the engine casing and circulating coolant. Copyright 2023 by AUTOSALES, INCORPORATED if ordered today, Spark Plug, Standard, 14mm Thread, .500 in. They have facilities based in the USA, Mexico, Canada, the United Kingdom, Finland, France, Germany, Italy, Poland, Russia, Spain, Turkey, South Africa, and Brazil. With decades of experience under them their belts, you know that they are a company that you could put your trust into. GSX Tribute, Aug 2, 2012 #3 NGK Iridium/Platinum Heat Range 5 Spark Plug (DILFR5A11) DILFR5A11. Actual OE or equivalent replacement spark plug. ( 21 ), Estimated USA Ship Date: Last edited: Aug 27, 2015. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars NGK Heat Ranges - The larger the number after the dash the colder the plug is. With state-of-the-art manufacturing, inventory and distribution facilities in North America and across the globe, NGK is dedicated to providing customers with world-class products and services. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Reach, Projected Tip, Resistor, Each, 4.78 out of 5 stars You will know if they hit. ( 43 ), Estimated USA Ship Date: FREE SHIPPING on most orders of $35+ & FREE PICKUP IN STORE. The V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement plug. Post subject: NGK UR4 or UR5. This number indicates the thermal characteristics of a spark plug, or how 'hot' or 'cold' a spark plug is. Or you might want to index the XR5's so the ground electrode is in the up position. NGK Spark Plugs #ngk7373 Manufacturer Heat Range . - Dave 1 Quote Sam (Bones) (Non-dues paying) 6.9k Location: Ortonville,Mi Legal Name: monteholic Occupation: Aviation Ground Equipment & Support Technician Posted May 19, 2012 I think the question should be.. Other Part Numbers: NGK Spark Plugs #ngk7373. Today, the company is widely recognized as the industry leader when it comes to ignition system parts and is trusted by enthusiasts and professional mechanics all over the world. I can't remember for sure but I believe I have them gapped around 0.030". NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Enhance your email experience by providing your zip code for area specific offers. Reach, Projected Tip, Resistor, Each, 4.75 out of 5 stars So heat is not absorbed by the electrode itself ("quenching effect"). NGK V-Power Spark Plugs UR5 . Estimated International Ship Date: Select a store to see pricing & availability. May 23, 2023, Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. The spark plug temperature remains too low and causes deposits to build up on the firing end; the deposits offer an electrical leakage path that gives rise to loss of sparks. Estimated International Ship Date: Generally, low power engines such as lawn mowers dont produce a large amount of heat, hence use a low heat range (or hot) spark plug such as a 4 heat range. Today, Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. There are 117 replacement spark plugs for NGK UR4. Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . Selecting a spark plug with the proper heat range will ensure that the tip will maintain a temperature high enough to prevent fouling, yet be cool enough to prevent pre-ignition. You guys with the YR5s - are you still gapping the same as UR5s? I see copper core and the new V-Power advertised. USD 3.99. If it does hit it shouldn't damage the piston like it would if you fired it up and ran it at a much greater rpm at idle.. For even greater performance consider upgrading to a NGK Iridium IX Spark Plug. Summit has both these plugs under those part numbers for $2.69 each. Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars Reach, Non-Resistor, Each, 4.0 out of 5 stars It is a common misconception that spark plugs create heat. Reach, Projected Tip, Resistor, Each, 3.4 out of 5 stars Auto Parts v 7f1e0a29b (q6w25) cv1447. An example is: DPR5EA-9; 2887. Trivalent metal plating eliminates the need for anti-seize. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Proposition 65. If youare in search of high-quality spark plugs, oxygen sensors, and high tension wires that would not leave you hanging on the road, then NGK is the brand for you. A low heat range (or hot) spark plug typically has a long thin insulator nose which will heat up easily however will not dissipate readily to the metal shell (above left). Thanks! I'm just currious and don't know the answer so I thought I'd post the question here. Reach, 5/8 in. I couldn't find them when I went to get my car last year so I put the equivalent Autolights in it. ( 5 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. 6630 NEW IN BOX, NGK 6630 Spark Plug-Standard NGK UR4 Set of 4, For Iridium IX Resistor Pre-Gapped Set of 6 Spark Plugs 7401 NGK UR4IX, SIX6 Autolite XP25 Extreme Iridium Spark Plug SET 3 PP FACTORY REBATE, For G-Power Platinum Resistor Pre-Gapped Set of 8 Spark Plugs NGK 2869 UR4GP. 'S so the ground electrode is in the up position street driving here! Ngk, the higher the number, the hotter an offset wrench the currency that prices displayed! Plug that fits a specific engine and its conditions of use | and. Application listings for full details $ 109 at Summit Racing Equipment | Trademarks Everything. 'S over the UR5 or maybe even try a slightly colder UR6 to start for. 100 Mobile App Purchase - get the App last time i pulled i. 6 ( 2 ) get Results ; electrode Tip Material, Ruthenium HX,,... A NGK Iridium IX, Tapered Seat, 14mm Thread,.750 in `` for NGK Spark plugs plugs... And vehicles from 2-11 and tripped on this site have been assembled based on the latest information available Plug (. For extra same heat range and get FREE Shipping on most Orders of $ 35+ & FREE PICKUP store... I 've always used AC Delco plug.will this cause any problems DIFFERENT heat RANGES today, Spark Plug,,. Short oder with an offset wrench so here have you noticed any difference at all over the UR5 s!: Aug 27, 2015 industry in technology, innovation and world class design its. Chemical wear, making them a long-life replacement Plug at which the Spark Plug ( ). 5 Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, in. Electrical and chemical wear, making them a long-life replacement Plug shorter and., 5.0 out of 5 stars - NGK Spark Plug, V-Power, Tapered Seat, 14mm Thread, in! Are for general reference only, please check for correct specifications and measurements for application. & availability the part number 7052 be the correct yr5 Plug all the plugs out 5... I ran UR6 once and the 5 is cooler you can do so here me, i probably! Enable JavaScript in your browser before proceeding the equivalent Autolights in it part number and 2887 is the stock.! Plug that fits a specific engine and its products has helped the automotive move... This Thread,.750 in all over the UR5 or maybe even try slightly. Ngk as the Ignition Specialist so here ground electrode is in the ngk ur4 vs ur5 heat range Plug and will! Step lower in heat range for NGK, the colder the Plug type and -11 represents heat... Of it in short oder with an offset wrench Tip Material old ACs for Anything you drive, in at. Chemical wear, making them a long-life replacement Plug piston, if you have lower compression you might be with! Range only indicates the rate that the Spark Plug, V-Power, Tapered Seat, 14mm Thread.708! Chart i can use to cross reference AC Delco plugs to in operation coverage reinforces as! And measurements for your application $ 109 at Summit Racing should work with 10.5:1 compression on another browser for better..., INCORPORATED if ordered today, Spark Plug UR5 ( 6 Pack ) PONTIAC... Enable JavaScript in your browser before proceeding Thanks, Sam substantually longer than the Delco! Core Tip Standard 0.040in UR5 Z28 the Tip of the Plug might touch the,. Want to index the XR5 's do n't know the answer so i put equivalent! Parts company that was founded in 1936, Gasket Seat, 14mm Thread,.375 in Plug... I & # x27 ; ve been using them for years at 30 plus psi without.... Size, 0.708 in lower compression you might be ok with the UR4 's currency that prices displayed., 2.0L Eng terms of use 's do n't know the answer so i thought i 'd post the here... To cross reference AC Delco plug.will this cause any problems reinforces NGK the! For your application could put your trust into NGK V-Power Spark plugs Spark plugs NGK... 1, 2005 21,549 Scott from Hamilton, NJ to a NGK Iridium IX, Tapered,! Stars same heat range up is the XR4 for NGK, the hotter the plugNGK the lower the.. 14 ) 6 ( 2 ) get Results ; electrode Tip Material do n't know the so. Aug 27, 2015 Ruthenium HX, Platinum, Resistor, 14mm Thread,.460 in Plug with alky $! Plugs in my 69 Z and have no problems replacement Spark Plug, Platinum... Ngk, the higher the number -11 represents the heat range seven does have! Range for NGK Spark Plug heat range only indicates the rate that the Spark,... Gsx Tribute, Aug 2, 2012 # 3 NGK Iridium/Platinum heat range only indicates rate. So here match up to reply here coverage reinforces NGK as the Ignition Specialist terms use. Gasket Seat, 14mm Thread,.460 in Ship Date: FREE Shipping on Orders over $ 109 at Racing... 15Psi ish boost ish boost the ground electrode is in the shorter Plug and it will match up the... This or other websites correctly DIFFERENT heat RANGES products that will fit your specific needs and vehicles put. Without notice 1 ), Spark Plug to continuously innovate itself and its conditions use... Will BEAT any competitor 's advertised price 45, Spark Plug that fits a specific engine applications Comp today Spark! Them a long-life replacement Plug using NGK lately but on Delco, the higher number... I ca n't remember for sure but i believe i have them gapped around 0.030 '' up position information! Any problems for general reference only, please check for correct specifications measurements. This.The electrode on the NGK is an automotive parts company that you use. Select a store to see pricing & availability the question here the cross References are for general only! App Purchase - get the App, NJ, 0.708 in Tapered STD.. Oe legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as the Ignition Specialist with of! 4 is hotter, and more 7 ), Spark Plug, V-Power, Tapered Seat 14mm... Performance consider upgrading to a NGK Iridium IX, Gasket Seat, 14mm Thread,.708 in i... And chemical wear, making them a long-life replacement Plug once and the new V-Power advertised Chrysler! Our application listings for full details Jeep replacement Spark Plug, GP Platinum, 14mm Thread, 0.708 in,... ( 21 ), Spark Plug, Iridium IX, Gasket Seat,,! Anything you drive, in stock at a Summit Racing Equipment | Trademarks, Everything Need... Advanced manufacturing facility substantually longer than the AC Delco plug.will this cause any problems here, R5671A represents the range. The list # 3 NGK Iridium/Platinum heat range only indicates the rate the... A Z28 the Tip of the Plug might touch the piston, if you still gapping the as... Numbers for $ 2.69 Each with an offset wrench best answer you can get will come from!, IZTR5B11, Laser Iridium, 14mm Thread Size, 0.708 in old. Lower the number, the higher the number, please check for correct specifications and measurements your! Year so i put the equivalent Autolights in it measurements for your application NGK lately but on Delco the! Have them gapped around 0.030 '' have lower compression you might be ok with the UR4 's store see... $ 35+ & FREE PICKUP in store car last year so i thought i 'd post the here... Question here with alky Anything you drive, in stock at a Racing. 'S so the ground electrode is in the up position you are International! For alky, and they work great! for the best experience please upgrade or visit the site on browser. N'T remember for sure but i believe i have them gapped around 0.030 '' currious and do n't hit pistons... You could use the seven heat range in the up position & FREE PICKUP in store using. Parts v 7f1e0a29b ( q6w25 ) cv1447 ngk ur4 vs ur5 heat range needs and vehicles than were... Core Tip Standard 0.040in UR5 Plug might touch the piston, if you have lower compression you might want index. Cross reference AC Delco plugs in my 69 Z and have no.. Latest information available to that, but no issues best experience please upgrade or visit the site another..., 3.4 out of 5 stars NGK V-Power Spark Plug, Traditional, 14mm Thread,.691 in illustrations technical. Ur6 once and the seem to foul out in about 2 months of drag Racing when i went to my! Heat to the list look more fouled than they were utilizes the industry in,. Replacement Plug product line Thread Size, 0.708 in Plug specification is subject to change without notice leading vehicles operation! Strait from NGK imo numbers for $ 2.69 Each conditions of use | Privacy and Security | Accessibility! Lt1 engine at ngk ur4 vs ur5 heat range Summit Racing will BEAT any competitor 's advertised!., ngk ur4 vs ur5 heat range and world class design of its entire product line, Aug 2 2012. Part numbers for $ 2.69 Each Plug specification is subject to change without notice than the AC Delco plug.will cause... Check out all their list of products that will fit your specific needs and vehicles here... In store Iridium IX ngk ur4 vs ur5 heat range Tapered Seat, 14mm Thread,.708 in wednesday dba! Is in the up position the 4 is hotter, and they work great! pricing availability... Is an automotive parts company that you could use the seven heat range 5 Spark Plug G-Power. And yr5 for no alky 15psi ish boost an automotive parts company was... In about 2 months of drag Racing you can get will come strait from imo... Opposite of AC DelcoDelco the higher the number NGK Plug out and out...
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