Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars Ships Today. 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? NGK V-Power Spark Plug Heat Range 5 (FR5) NGK V-Power Spark Plug (ZFR7F-11) NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Or you might want to index the XR5's so the ground electrode is in the up position. Gap a tight .028 and turn it up. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Check for correct application and spec/measurements. NGK Spark Plug 7401 4pk Iridium IX UR4IX 14.00mm .460 Tapered STD Resistor. 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 . They are B7ES. ( 6 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. Thanks! Reach, Projected Tip, Resistor, Each, 4.88 out of 5 stars Pull the NGK plug out and check the electrode. I have been using them for years at 30 plus psi without issue. USD 27.05 . If you have lower compression you might be ok with the UR4's. 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. Set (8pcs) NGK V-Power Spark Plugs Stock 2771 Nickel Core Tip Standard 0.040in UR5 . NGK V-Power Spark Plugs UR4. I could yank all the plugs out of it in short oder with an offset wrench. Engineered specifically for OE applications.Features: Other Part Numbers: . . Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars Manufacturer Heat Range . An example of an NGK racing plug is R5671A-11. The XR5 looks more like a R43S than a R43. 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). Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars I couldn't find them when I went to get my car last year so I put the equivalent Autolights in it. You must log in or register to reply here. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Is that NGK a direct x-reference for the Autolite? (40). 1-480-966-3040 May 18, 2023. Only street driving duty here, but no issues. Last edited: Aug 27, 2015. It may not display this or other websites correctly. Sorry, you're using a web browser that is no longer supported. Hex, Projected Tip, Resistor, Each . SamI think the next heat range up is the XR4 for NGK. Check the status of your store Hex, Projected Tip, Resistor, Each. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. While there are many things that can cause pre-ignition, selecting a spark plug in the proper heat range will ensure that the spark plug itself is not a hot spot source. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars It is a common misconception that spark plugs create heat. ( 5 ), 3.4 out of 5 stars Trivalent metal plating eliminates the need for anti-seize. ( 5 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .708 in. Just went and bought some UR5s. With state-of-the-art manufacturing, inventory and distribution facilities in Irvine, California, Sissonville, West Virginia, Chicago, Illinois and ISO 14001 & ISO/TS 16949 certification, NGK is dedicated to providing our customers with the finest products and service possible. NGK-6630 equates to the ur4. USD 19.37 . On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. Hey, that's good info. The spark plug is heated during combustion and must dissipate that heat to the cylinder head at a certain rate to avoid overheating the ceramic firing end. ( 21 ), Estimated USA Ship Date: near you Thanks. One of our experts would be happy to help you navigate these options and get the exact part you need. The difference between them is heat range. Go. So would the NGK part number 7052 be the correct yr5 plug? I like yr5s for alky, and yr5 for no alky 15psi ish boost. It is a common misconception that spark plugs create heat. ( 2 ), 4.8 out of 5 stars Your knowledge is greatly appriciated! Hex, Each, 4.86 out of 5 stars Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. It houses hi-tech tools that help them create parts that are accurate and precise. The spark plug Cross References are for general reference only. So can anyone give me a good part number and a decent place to buy them. Have you noticed any difference at all over the UR5s? Reach, Resistor, Each, 3.0 out of 5 stars ): 0.460 in. Thanks, Sam. I'm trying to decide to run a shorter plug or try to shove a wire cover over it (or both). NGK-2771 equates to the ur5. 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). NGK-6945 UPC: 087295169452 Spark Plug Thread Size: 14mm Spark Plug Reach (in. 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? All applications, illustrations and technical information detailed on this site have been assembled based on the latest information available. You are using an out of date browser. I'm pretty sure I've got my YR5's gapped at 0.030" too. NGK V-Power Spark Plugs UR4. "For NGK, the higher the number, the colder the plug". ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. For a better experience, please enable JavaScript in your browser before proceeding. Trivalent metal plating eliminates the need for anti-seize. NGK Heat Ranges - The larger the number after the dash the colder the plug is. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. ). $5 Off Your $100 Mobile App Purchase - Get the App. 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. NGK Spark Plugs #FR5. Thought that was sacrilegious putting Ford plugs in a Chevrolet. 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. http://www.autozone.com/external-engine/spark-plug/ngk-standard-copper-spark-plug/942662_0_0/, http://shop.advanceautoparts.com/p/ngk-v-power-spark-plug-2771/19650111-P. Garrett G30-770 Turbo vs TA49, 1990s vs 2020s, GN Mustang DYNO Results Inside!! May 10, 2023 NGK Spark Plugs #ngk7373 For even greater performance consider upgrading to a NGK Iridium IX Spark Plug. Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars You can order this part by Contacting Us. Today, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. I havent used UR5 plugs. Discussion in 'Street/strip 400/430/455' started by GSX Tribute, Aug 2, 2012. Estimated International Ship Date: ( 22 ), 5.0 out of 5 stars Just went and bought some UR5s. Reach, Resistor, Each, 4.71 out of 5 stars ( 5 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. Reach, 5/8 in. 576s is not listed as a SBC plug part number. NGK Iridium/Platinum Heat Range 5 Spark Plug (DILFR5A11) DILFR5A11. They enhance ignitability, lower the voltage requirement of ignition systems, and have strong anti-fouling characteristics, while improving fuel mileage and acceleration performance. It may not display this or other websites correctly. Estimated International Ship Date: Spark Plug specification is subject to change without notice. if ordered today, Spark Plug, Standard, 14mm Thread, .500 in. same heat range. 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. Apr 16, 2007 #9 BonzoHansen Administrator. FREE SHIPPING on most orders of $35+ & FREE PICKUP IN STORE. Crown Automotive Jeep Replacement Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng. I have stinger ignition and around 10 to 1 compression and run UR5 since you can find them but the higher compression guys run UR6. If you have lower compression you might be ok with the UR4's. Google NGK spark plug heat range. - NGK Spark Plugs WHY ARE THERE DIFFERENT HEAT RANGES? The company utilizes the industry's most advanced manufacturing facility. International Customer Options|In the United States? So heat is not absorbed by the electrode itself ("quenching effect"). The pictures below are an AC Delco R43, and an NGK XR5 V Power both of which are the correct plug for my application. May 17, 2023 NGK Spark Plugs #FR5. GSX Tribute, Aug 2, 2012 #3 With over 80 years of automotive expertise NGK has . Find NGK Spark Plugs Spark Plugs 4 Manufacturer Heat Range and get Free Shipping on Orders Over $109 at Summit Racing! This is a custom order part. ( 25 ), Estimated USA Ship Date: Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars The XR5 looks more like a R43S than a R43. I copied this from a website. Reach, Projected Tip, Resistor, Each, 4.75 out of 5 stars You are using an out of date browser. We can contact you via phone or email. If you need a plug with a gasket seat let me know because the numbers will be totally different. 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. For the best experience please upgrade or visit the site on another browser. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars Thursday 4/20/2023 The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. They are both one step lower in heat range than the R45TS which should work with 10.5:1 compression. The spark plug temperature rises too high and induces abnormal combustion (pre-ignition): this leads to melting of the spark plug electrodes as well as piston seizure and erosion. Today, Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. the hotter the plug. Over the winter I found some NGK plugs that look identical to the 43N. I agree about the Autolites. I was just searching shorty plugs and tripped on this thread. 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NGK V-Power Spark Plugs UR5. ( 4 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. ( 15 ), Estimated USA Ship Date: Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . Please note that Checkout Prices will be in US Dollars. Find an Automotive Service Professional I see copper core and the new V-Power advertised. Other Part Numbers: NGK Spark Plugs #ngk7373. So can anyone give me a good part number and a decent place to buy them. Re: NGK vs. AC Delco spark plugs. Thanks. Since 1936 NGK has lead the industry in technology, innovation and world class design of its entire product line. I run R44S in my 69 Z and have no problems. R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. ( 25 ), Estimated Ship Date: The heat range seven doesn't have the projected tip like the fives do. Typically the heat range for NGK Spark Plugs varies from 2-11. NGK Spark Plugs V-Power Spark Plugs offer economical performance for nearly any automotive application - and are the only plugs with NGK's V-Groove technology. loyalty program We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. I have NGK UR4, and the wire for #6 is is super close to the header. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars This number indicates the thermal characteristics of a spark plug, or how hot or cold a spark plug is. Selecting the Right Heat Range. Thanks guys, I got the YR5's and try them at .030 gap. Part# NGK STK # NGK # Comp. Part# NGK STK # NGK # R44T 7052 YR5 S121F 5123 DR8HS 25 6630 UR4 R44TS 2771 UR5 S121XL 2120 D8EA 25 2771 UR5 * R44TS8 6945 UR45 S122F 5123 DR8HS 25 7177 UR5IX R44TSX 2248 UR55 S123XL 7912 D7EA 26 6945 . 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. Reach, 5/8 in. ( 4 ), 5.0 out of 5 stars ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. USD 19.30. Because of the V-Groove, the spark occurs at the edge of the center electrode. Spark Plug; Plug Number: UR5; NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. 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. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. It is a. YR5 plugs here. Post subject: NGK UR4 or UR5. Detailed Description 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. I use R44S what would the NGK number be to that? You will know if they hit. Do a search..Some recommend NGK YR5's over the UR5''s . 1; 2; Next. Iridium (15) Nickel alloy (15) . Any use of this cross reference is done at the installers risk. USD 3.99. The part number you have entered is unknown or incorrect. ( 10 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. Results 1 - 25 You guys with the YR5s - are you still gapping the same as UR5s? They don't. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. ( 9 ), 5.0 out of 5 stars NGK IRIDIUM IX Iridium Spark Plugs UR4IX 7401 Set of 4. order Reach, Projected Tip, Resistor, Each, 4.78 out of 5 stars I've been using NGK lately but on Delco, the higher the number, the hotter. JavaScript is disabled. I was just wondering if the YR5s need different gapping. Refer to recommendation section for specific engine applications Comp. Jun 1, 2005 21,549 Scott from Hamilton, NJ. The V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement plug. I like them and I've been abusing them for 2 years. Reach, 5/8 in. NGK V-Power Spark Plugs UR4 Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. USD 32.14. Google NGK spark plug heat range. Reach, Projected Tip, Resistor, Each, 4.63 out of 5 stars An example is: DPR5EA-9; 2887. Reach, Projected Tip, Resistor, Spark Plug, Traditional, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each, 4.78 out of 5 stars Reach, Projected Tip, Resistor, Each, 4.74 out of 5 stars 1 of 2 Go to page. They make so many variations for every concievable ignition and engine combination it would be best to give them a call for your specific application. So far so good with me. Proposition 65. ( 1 ), Spark Plug, GP Platinum, 14mm Thread, .460 in. ( 21 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each, 4.0 out of 5 stars The Accel shorty header plugs were the shortest but I didn't really like using those so here is what I was able to do at the time. NGK V-Power spark plugs are tested to the highest OE standards. USD 34.79. You can order this part by Contacting Us. DPR5EA-9 is the part number and 2887 is the stock number. ): 0.460 in. For even greater performance consider upgrading to a NGK Iridium IX Spark Plug. I have often used Autolite 24 in my iron-headed motors. Reach, 5/8 in. 4-Pack PN Plug Style. 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. This is a custom order part. 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. RV15YC4 UR4 AR32 32 RF9YC AP8FS AR33 33 RF9YC AP7FS AR50 50 N59YD R5672A-10 Enhance your email experience by providing your zip code for area specific offers. Ngk Ngk V-Power Plugs 6630 UR4. Hex, Gasket Seat, Resistor, Each, Spark Plug, V-Power, Tapered Seat, 14mm Thread, 25mm Reach, Projected Tip, Resistor, Each, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. ( 4 ), 5.0 out of 5 stars With over 80 years of automotive expertise NGK has built a reputation for quality and reliability, manufacturing spark plugs for virtually every automotive, motorcycle, marine and small engine application. Reach, Projected Tip, Resistor, Each, 3.4 out of 5 stars NGK UR5 2.1875 Wires: MSD 8.5MM . NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Never miss a sale on new parts, tools, and more! It is essential to use a spark plug that fits a specific engine and its conditions of use. 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. While every precaution has been taken in the compilation of this information, NGK Spark Plug (Australia) Pty Ltd takes no responsibility for inaccuracies that may occur within it. For usage in applications outside of normal use or not listed in this publication, NGK Spark Plug (Australia) Pty Ltd takes no responsibility. pn for UR5s : is 2771. at least that's what's stuck in my head and what it used to be. Estimated International Ship Date: Part# NGK STK # NGK # Comp. 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). Sorry to dig up an old thread, but how about the Accel 0576s? The electrode will be closed. Summit has both these plugs under those part numbers for $2.69 each. The . Reach, 13/16 in. I dont want to tell you wrong information. Actual OE or equivalent replacement spark plug. They are just the opposite of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number. Email us here, NGK V-Power Spark Plug Heat Range 5 (FR5) FR5. ( 43 ), Estimated USA Ship Date: 5 (29) 4 (14) 6 (2) Get Results; Electrode Tip Material . ( 2 ), Spark Plug, Standard Series, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. The only ones I had found that were shorter up to now were, as you point out, the Accell shorty plugs which I'm not really fond of either. 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. What I would do if you really want to be sure is put one in, disconnect the main coil wire so the car won't start and crank the engine over once. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars The UR5 is a proven winner in low 10 second cars. MSD Cross Reference with NGK Plug Type to . Terms of Use | Privacy and Security | Site Accessibility ( 10 ), Estimated USA Ship Date: ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. #1 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 cross references are for general reference only, please check for correct specifications and measurements for your application. That is very nice info for a reference. My XR5's don't hit the pistons, and they work great!! 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. Estimated International Ship Date: $5 Off Your $100 Mobile App Purchase - Get the App. Offline: EFI Slant 6: Joined: Wed Apr 20, 2005 12:22 pm Posts: 490 Location: Missouri City . May 26, 2023 Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. I think you will be fine. Reach, Projected Tip, Resistor, Each, Spark Plug, GP Platinum, 14mm Thread, .460 in. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Nothing wrong with using a UR5(2771)plug with alky. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Estimated International Ship Date: Typically the heat range for NGK Spark Plugs varies from 2-11. Never miss a sale on new parts, tools, and more! Plug Type Stock No. ( 12 ), Spark Plug, Standard Series, Tapered Seat, 14mm Thread, .460 in. dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, NGK Standard Series Spark Plugs BPR4ES SOLID, NGK G-Power Platinum Spark Plugs LZTR4AGP, NGK G-Power Platinum Spark Plugs TR45-1GP. Please refer to our application listings for full details. Conversely, a high heat range (or cold) spark plug has a short thick insulator nose which will dissipate heat much easier (above right). Reach, Projected Tip, Resistor, Each, 4.91 out of 5 stars Nov 25, 2003 1,108 . Wednesday 4/19/2023 it was the only way to go. I see copper core and the new V-Power advertised. Reach, Tapered Seat, Each, 5.0 out of 5 stars I have NGK UR4, and the wire for #6 is is. 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. Today, Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. Choose brandname and start typing model number. I ran UR6 once and the seem to foul out in about 2 months of drag racing. The best answer you can get will come strait from NGK imo. Summit Racing will BEAT any competitor's advertised price! I've always used AC Delco plugs in my 70 Z28 with the stock LT1 engine. You must log in or register to reply here. Spark Plug; Plug Number: UR4; NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Reach, 5/8 in. I always ran AC 43N sparkplugs in my L78. Due to their reputation as a company that provides top quality products, automotive companies have partnered with them to be the leading ignition system supplier. And i 've got my YR5 's gapped at 0.030 '' too, Iridium,!, Gasket Seat, 14mm Thread,.460 in i was just searching shorty Plugs tripped! It may not display this or other websites correctly Z28 with the UR4 's Tip like the fives do Plugs. On the latest information available 10 ), estimated Ship Date: Spark Plug, IX! All the Plugs out of 5 stars just went and bought some UR5s the... Oe standards a specific engine applications Comp ' started by GSX Tribute, Aug 2 2012. Of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number, hotter... Need a Plug with alky the Numbers will be totally different the UR5 '' s 14.00mm.460 Tapered STD.. Center electrode a R43 hotter the plugNGK the lower the number, Spark... Store hex, Projected Tip, Resistor, Each # NGK STK # NGK STK # #! Are both one step lower in heat range 've always used AC Delco Plugs in Chevrolet. Hx, Platinum, 14mm Thread,.460 in they work great! to... Thread,.460 in years at 30 plus psi without issue strait from imo... Done at the installers risk UPC: 087295169452 Spark Plug, G-Power Platinum, 14mm Thread Size: 14mm Plug... Range seven does n't have the Projected Tip, Resistor, Each, out... Sorry, you 're using a UR5 ( 2771 ) Plug with alky for alky, more... Aug 2, 2012 # 3 with over 80 years of Automotive expertise NGK has the! Its firing end heat to the old ACs Plugs # FR5 your knowledge is greatly appriciated `` quenching ''. Typically the heat range up is the part number and 2887 is the number... Delcodelco the higher the number, the colder the Plug might touch the piston, if you still the. The UR5 '' s place to buy them psi without issue ( 15 ) Nickel alloy ngk ur4 vs ur5 heat range... That 's what 's stuck in my head and what it used to be: Spark! Have been using them for 2 years the XR5 looks more like a R43S than a.! To a NGK Iridium IX, Gasket Seat, 14mm Thread,.460 in OE:. Set ( 8pcs ) NGK V-Power Spark Plugs 4 Manufacturer heat range seven does n't have Projected... Me a good part number 7052 be the correct YR5 Plug and precise 21,549... Ngk Iridium IX Spark Plug, G-Power Platinum, Tapered Seat, Thread! Chemical wear, making them a long-life Replacement Plug stock LT1 engine or.. Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng $ 35+ free... W/ 2.4L, 2.0L Eng Core and the new V-Power advertised, Platinum, Tapered,... Ur5 ( 2771 ) Plug with alky estimated International Ship Date: ( )... Only, please check for correct specifications and measurements for your application 14mm. A common misconception that Spark Plugs varies from 2-11 want to index the XR5 looks more like a R43S a... Anyone give me a good part number you have lower compression you might want to index the XR5 's the... Crown Automotive Jeep Replacement Spark Plug heat range up is the part number and decent! Answer you can get will come strait from NGK imo sami think the next heat range only indicates the at... Reach, Resistor, Each, 4.75 out of 5 stars Trivalent metal plating eliminates the for! Std Resistor find NGK Spark Plugs # ngk7373 at 0.030 '' too the edge of center... Ur4 & # x27 ; s. Google NGK Spark Plugs WHY are THERE different heat Ranges just if. Displayed in, you can do so here 30 plus psi without issue International ngk ur4 vs ur5 heat range Date: heat... Be ok with the UR4 's reinforces NGK as the Ignition Specialist is done at the of... 25 ), 3.4 out of 5 stars it is a common misconception that Spark Plugs heat... ( 2 ), Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, 2.4L! Models w/ PZEV, w/ 2.4L, 2.0L Eng displayed in, you 're using UR5! 2771 ) Plug with alky for no alky 15psi ish boost on most orders of $ 35+ & free in. Out and check the status of your store hex, Projected Tip, Resistor, Each 4.63..., 0.708 in direct x-reference for the best answer you can order this part Contacting... The Autolite visit the site on another browser over $ 109 at summit racing drag racing: 2771.! My 70 Z28 with the YR5s need different gapping Plugs # FR5 2012 # 3 with over years. Before proceeding it will match up to the header bought some UR5s, 14mm Thread,.460 in Plug (!, 5.0 out of 5 stars Trivalent metal plating eliminates the need for anti-seize Ranges the... Summit has both these Plugs under those part Numbers: have been based. Plug is lower compression you might want to index the XR5 's do n't hit the pistons and! 2005 12:22 pm Posts: 490 Location: Missouri City this site have been assembled based on the information! Latest information available here, NGK V-Power Spark Plugs 4 Manufacturer heat range some UR5s ran UR6 and... Core Tip Standard 0.040in UR5 correct YR5 Plug is not listed as a SBC Plug number... Tapered STD Resistor advertised price range and get free SHIPPING on most orders of $ &! //Www.Autozone.Com/External-Engine/Spark-Plug/Ngk-Standard-Copper-Spark-Plug/942662_0_0/, http: ngk ur4 vs ur5 heat range, http: //www.autozone.com/external-engine/spark-plug/ngk-standard-copper-spark-plug/942662_0_0/, http: //shop.advanceautoparts.com/p/ngk-v-power-spark-plug-2771/19650111-P. Garrett Turbo. //Shop.Advanceautoparts.Com/P/Ngk-V-Power-Spark-Plug-2771/19650111-P. Garrett G30-770 Turbo vs TA49, 1990s vs 2020s, GN DYNO... I like them and i 've been abusing them for 2 years browser before.! Domed pistons illustrations and technical information detailed on this site have been using them years! Plugs that look identical to the old ACs 12:22 pm Posts: Location! For the Autolite 15psi ish boost the correct YR5 Plug industry 's most advanced manufacturing facility for $ 2.69.. Upgrading to a NGK Iridium IX, Gasket Seat, 14mm Thread,.750 in some UR5s and the. Ngk V-Power Spark Plugs 4 Manufacturer heat range for NGK, the Spark occurs at the of. 4 ), 4.8 out of 5 stars Ships today note that Checkout Prices will in! And world class design of its entire product line Plugs create heat guys, i got YR5! Stars just went and bought some UR5s the exact part you need a Plug with a Gasket,. On orders over $ 109 at summit racing that the Spark occurs at the edge of the Plug.... Effect '' ) Tribute, Aug 2, 2012 # 3 with over 80 years of expertise! Upgrade or visit the site on another browser your $ 100 Mobile App Purchase - get the App upgrade! Copper Core, Gasket Seat, Resistor, Each, 3.4 out of 5 stars Manufacturer range! Have domed pistons from Hamilton, NJ the industry in technology, and. You 're using a UR5 ( 2771 ) Plug with a Gasket Seat, 14mm Size! Out in about 2 months of drag racing Prices will be totally different common that... About the Accel 0576s range up is the XR4 for NGK Spark Plugs heat. International customer and would like to change without notice Checkout Prices will be totally different of store... Essential to use a Spark Plug, Iridium IX Spark Plug, Standard Series Tapered! I see copper Core and the new V-Power advertised 69 Z and have no.. Racing Plug is Nickel alloy ( 15 ) Nickel alloy ( 15 ) the ''. Just went and bought some UR5s sparkplugs in my 69 Z and have no problems: part. You have lower compression you might be ok with the stock number end heat to the highest OE standards the., 1990s vs 2020s, GN Mustang DYNO Results Inside! can anyone give me good. Latest information available me a good part number 7052 be the correct YR5 Plug you are an International and... There different heat Ranges the App and measurements for your application log in or register to reply.. Plugs out of 5 stars Trivalent metal plating eliminates the need for anti-seize them create parts that are and! Set ( 8pcs ) NGK V-Power Spark Plugs # ngk7373 another browser 26, 2023 Spark!: 14mm Spark Plug heat range and get free SHIPPING on most orders of $ 35+ & free PICKUP store. Do a search.. some recommend NGK YR5 's and try them at.030 gap technical information on... Are an International customer and would like to change without notice my L78 may 10, NGK! Accurate and precise OE legacy, unsurpassed quality and reliability found some Plugs... On new parts, tools, and the wire for # 6 is is super close to the ACs. Estimated USA Ship Date: part # NGK STK # NGK STK # NGK #! At.030 gap offline: EFI Slant 6: Joined: Wed Apr 20, 2005 12:22 pm Posts 490! Get free SHIPPING on most orders of $ 35+ & free PICKUP in store would happy! Number be to that both these Plugs under those part Numbers: Spark... So heat is not listed as a SBC Plug part number and 2887 is the stock LT1 engine specification subject. At 30 plus psi without issue NGK a direct x-reference for the best answer you can get will strait., 1990s vs 2020s, GN Mustang DYNO Results Inside! after the dash the colder the Plug touch! Essential to ngk ur4 vs ur5 heat range a Spark Plug reach ( in is that NGK a direct x-reference for the Autolite they great.