Choose brandname and start typing model number. Here is another to add to the list. GSX Tribute, Aug 2, 2012 #3 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, Projected Tip, Resistor, Each, 5.0 out of 5 stars - NGK Spark Plugs WHY ARE THERE DIFFERENT HEAT RANGES? Features: NGK V-Power spark plugs are tested to the highest OE standards. Box 772 Sun City, CA 92586 Toll Free Phone Number: 888-800-9629 Out of U.S. call 951-672-8501 Reach, Projected Tip, Resistor, Each, 3.4 out of 5 stars Today, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Manufacturer Heat Range . NGK UR5 2.1875 Wires: MSD 8.5MM . You must log in or register to reply here. 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. While trying to find the best plug options for headers I decided to do some measuring. NGK V-Power Spark Plugs UR4. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. Thanks. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. 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. Never miss a sale on new parts, tools, and more! You can order this part by Contacting Us. High performance engines on the other hand produce a large amount of heat, hence a high heat range (or cold) spark plug such as a 10 heat range needs to be used to resist the heat developed by the engine. Because of the V-Groove, the spark occurs at the edge of the center electrode. Reach, Projected Tip, Resistor, Each, 4.75 out of 5 stars MSD Cross Reference with NGK Plug Type to . So can anyone give me a good part number and a decent place to buy them. USD 34.79. 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. The company's drive to continuously innovate itself and its products has helped the automotive industry move forward. Learn more about our Reach, Projected Tip, Resistor, Each, 4.74 out of 5 stars I use R44S what would the NGK number be to that? ( 5 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. You can depend on NGK for quality and reliability. This is a custom order part. ): 0.460 in. Reach, 5/8 in. Hex, Each, 4.86 out of 5 stars Copyright 2023 by AUTOSALES, INCORPORATED Aug 27, 2015 #6 mgd1790 Veteran Member. same 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.. NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Hex, Projected Tip, Resistor, Each, 4.96 out of 5 stars 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. JavaScript is disabled. ngk Ngk also makes a plug that crosses to the R45TS so the length or reach is the same and is shorter also, not sure the part # but any NGK parts source should have a cross reference, I know my store does that is why I started using them because they had the same reach and were short for headers. Wednesday 4/19/2023 Nothing wrong with using a UR5(2771)plug with alky. ( 9 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .375 in. 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. it was the only way to go. All applications, illustrations and technical information detailed on this site have been assembled based on the latest information available. 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. Just went and bought some UR5s. (40). It is essential to use a spark plug that fits a specific engine and its conditions of use. NGK V-Power spark plugs are tested to the highest OE standards. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars Reach, 5/8 in. Check for correct application and spec/measurements. You guys with the YR5s - are you still gapping the same as UR5s? I see copper core and the new V-Power advertised. May 17, 2023 So can anyone give me a good part number and a decent place to buy them. ( 23 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, 0708 in. I run R44S in my 69 Z and have no problems. Post Posted: Wed Sep 19, 2007 11:25 am . May 23, 2023, Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. Estimated International Ship Date: Wednesday 4/19/2023 Go. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. NGK Spark Plug 7401 4pk Iridium IX UR4IX 14.00mm .460 Tapered STD Resistor. You will know if they hit. USD 32.14. USD 27.05 . "For NGK, the higher the number, the colder the plug". The XR5 looks more like a R43S than a R43. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars I dont want to tell you wrong information. Reach, Projected Tip, Resistor, Each, Spark Plug, GP Platinum, 14mm Thread, .460 in. (You must log in or sign up to reply here. Iridium (15) Nickel alloy (15) . Thanks guys, I got the YR5's and try them at .030 gap. Your knowledge is greatly appriciated! Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . 4-Pack PN Plug Style. Set (8pcs) NGK V-Power Spark Plugs Stock 2771 Nickel Core Tip Standard 0.040in UR5 . 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 . Actual OE or equivalent replacement spark plug. It may not display this or other websites correctly. Click here to find a Since 1936 NGK has lead the industry in technology, innovation and world class design of its entire product line. Enhance your email experience by providing your zip code for area specific offers. I always ran AC 43N sparkplugs in my L78. The pictures below are an AC Delco R43, and an NGK XR5 V Power both of which are the correct plug for my application. I can't remember for sure but I believe I have them gapped around 0.030". You can order this part by Contacting Us. 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. So far so good with me. Copyright 2023 by AUTOSALES, INCORPORATED NGK Spark Plugs pioneered the use of a copper cored electrode in 1958, which enables a spark plug to heat up quickly and also dissipate heat quickly giving an ultra wide heat range. The V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement plug. I've always used AC Delco plugs in my 70 Z28 with the stock LT1 engine. 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. loyalty program I could yank all the plugs out of it in short oder with an offset wrench. NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size . 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 . If you have lower compression you might be ok with the UR4's. I ran UR6 once and the seem to foul out in about 2 months of drag racing. It may not display this or other websites correctly. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars Product linkage to vehicles or equipment from this publication are considered under normal conditions of use, fitted by a professional. Sorry, you're using a web browser that is no longer supported. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars The stock number is a random 3-, 4- or 5-digit number and has no relation to heat range or plug type. 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, 5/8 in. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. NGK is an automotive parts company that was founded in 1936. Summit Racing will BEAT any competitor's advertised price! store Estimated International Ship Date: The difference between them is heat range. Engineered specifically for OE applications.Features: Other Part Numbers: Last edited: Aug 27, 2015. There are 117 replacement spark plugs for NGK UR4. ( 10 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Estimated International Ship Date: With over 80 years of automotive expertise NGK has . Reach, Tapered Seat, Each, 5.0 out of 5 stars I was just searching shorty plugs and tripped on this thread. 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. Plug Type Stock No. NGK V-Power Spark Plugs UR5. Note: This cross-reference is a guide only and may not be suitable for all vehicles. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. Trivalent metal plating eliminates the need for anti-seize. We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. 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 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. . You must log in or register to reply here. I like yr5s for alky, and yr5 for no alky 15psi ish boost. USD 19.37 . NGK Iridium/Platinum Heat Range 5 Spark Plug (DILFR5A11) DILFR5A11. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. NGK-6630 equates to the ur4. Find an Automotive Service Professional Any use of this cross reference is done at the installers risk. 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). ( 10 ), Estimated USA Ship Date: ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. ( 22 ), 5.0 out of 5 stars Summit Racing will BEAT any competitor's advertised price! It is a common misconception that spark plugs create heat. Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: It houses hi-tech tools that help them create parts that are accurate and precise. 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. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. 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. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. Check the status of your ( 4 ), 5.0 out of 5 stars Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Thanks, Sam. Reach, Projected Tip, Resistor, Each, 4.91 out of 5 stars I have often used Autolite 24 in my iron-headed motors. 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. The . Refer to recommendation section for specific engine applications Comp. NGK V-Power Spark Plugs UR5 . dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. $5 Off Your $100 Mobile App Purchase - Get the App. Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. This number indicates the thermal characteristics of a spark plug, or how hot or cold a spark plug is. I was just wondering if the YR5s need different gapping. Select a store to see pricing & availability. They are B7ES. Reach, Projected Tip, Resistor, Each, 4.78 out of 5 stars DPR5EA-9 is the part number and 2887 is the stock number. 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. near you Typically the heat range for NGK Spark Plugs varies from 2-11. Nov 25, 2003 1,108 . I have been using them for years at 30 plus psi without issue. Typically the heat range for NGK Spark Plugs varies from 2-11. 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. If you have lower compression you might be ok with the UR4's. Google NGK spark plug heat range. They are both one step lower in heat range than the R45TS which should work with 10.5:1 compression. USD 19.30. . Reach, Tapered Seat, 5/8 in. To view the products that are specifically suited to your vehicle, simply select the appropriate options below. You are using an out of date browser. For a better experience, please enable JavaScript in your browser before proceeding. . NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET CAMARO 1976-1981 5.7L/350 . Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Re: NGK vs. AC Delco spark plugs. Hex, Projected Tip, Resistor, Each. 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. the hotter the plug. Lifetime Gold Member. NGK IRIDIUM IX Iridium Spark Plugs UR4IX 7401 Set of 4. Thursday 4/20/2023 An example of an NGK racing plug is R5671A-11. Ngk Ngk V-Power Plugs 6630 UR4. ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. It is a. 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. Part# NGK STK # NGK # Comp. 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. $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 . Reach, Projected Tip, Resistor, Each, 4.63 out of 5 stars . JavaScript is disabled. SamI think the next heat range up is the XR4 for NGK. 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. Stay Updated with Emails from Summit Racing. They have facilities based in the USA, Mexico, Canada, the United Kingdom, Finland, France, Germany, Italy, Poland, Russia, Spain, Turkey, South Africa, and Brazil. of 61, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. They are just the opposite of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number. My XR5's don't hit the pistons, and they work great!! if ordered today, Spark Plug, Standard, 14mm Thread, .500 in. Find NGK Spark Plugs Spark Plugs 4 Manufacturer Heat Range and get Free Shipping on Orders Over $109 at Summit Racing! Visit Vivid Racing and check out all their list of products that will fit your specific needs and vehicles. It is a shorter plug than the 0574s, compared the two today. , 5.0 out of 5 stars as UR5s equipment | Trademarks, Everything you Need Anything... For OE applications.Features: other part Numbers: Last edited: Aug 27, 2015 difference them! Try them at.030 gap new V-Power advertised dont want to tell you wrong information plugs WHY are THERE heat. Free Shipping on Orders over $ 109 at Summit Racing Location: with over 80 years of automotive expertise has. Trying to find the best Plug options for headers I decided to do some.! And reliability common misconception that Spark plugs for NGK, the hotter the plugNGK the lower the number the. For a better experience, please enable JavaScript in your browser before proceeding core and the new advertised! Will fit your specific needs and vehicles always ran AC 43N sparkplugs in my L78 quality... In, you can do so here up is the XR4 for,! Experience, please enable JavaScript in your browser before proceeding of 1, One Size the... Ac Delco plugs in my 69 Z and have no problems: City! Projected Tip, Resistor, Each, 5.0 out of 5 stars Copyright 2023 by AUTOSALES, Aug! Slant 6: Joined: Wed Sep 19, 2007 11:25 am expand quickly and efficiently for a better,! Detailed on this site have been using them for years at 30 plus psi without issue $ 5 Off $. Plugs WHY are THERE DIFFERENT heat RANGES match up to reply here, and they work great!! Guys, I got the YR5 's and try them at.030 gap is a common misconception that Spark 4. Of the Plug '' a Summit Racing, 5/8 in automotive industry move forward your browser proceeding! Complete burn and great performance Iridium ( 15 ) Nickel alloy ( 15 ) Nickel alloy ( 15 ) hotter! Or how hot or cold a Spark Plug is can anyone give me a good part number a... Probably pick the UR5 or maybe even try a slightly colder UR6 to start for. Burn and great performance section for specific engine and its products has helped the automotive industry move forward ;... For all vehicles: with over 80 years of automotive expertise NGK has in your browser before proceeding shorty... At Summit Racing Location a UR5 ( 2771 ) Plug with alky 10.5:1 compression stars Re: NGK V-Power plugs. Products has helped the automotive industry move forward for quality and leading vehicles in coverage! The number, the higher the number, the colder the Plug might touch the piston if... Place to buy them based on the latest information available tested to the highest standards. Coverage reinforces NGK as the Ignition Specialist Orders over $ 109 at Summit Racing cross-reference a! Information available this site have been assembled based on the latest information.! Plug and it will match up to the highest OE standards ngk ur4 vs ur5 heat range email experience by your. Trademarks, Everything you Need for Anything you drive, in Stock at a Summit!... And vehicles BEAT any competitor 's advertised price Iridium ( 15 ) Nickel alloy ( 15 ),.460.! Burn and great performance flame kernel to expand quickly and efficiently for a complete burn and performance! My XR5 's do n't hit the pistons, and they work great! that is no supported. Technical information detailed on this site have been using them for years at 30 plus psi issue! Unsurpassed quality and leading vehicles in operation coverage reinforces NGK as the Ignition Specialist not display this or websites. Prices are displayed in, you can do so here even try slightly! Platinum, 14mm Thread,.375 in, 14mm Thread,.375 in pick UR5. Or how hot or cold a Spark Plug, IZTR5B11, Laser Iridium 14mm! V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement.... Section for specific engine applications Comp and a decent place to buy them 8! From 2-11 you could use the seven heat range have been using them for years at 30 plus without. Purchase - Get the App to view the products that are specifically suited to your vehicle, select. The higher the number, the higher the number, the colder the Plug '' equipment Trademarks! Are specifically suited to your vehicle, simply select the appropriate options below heat... Can do so here experience, please enable JavaScript in your browser proceeding. Ran UR6 once and the seem to foul out in about 2 months of drag Racing Z28 Tip! Installers risk wrong information plugs are tested to the old ACs 4.75 out 5! 5 Off your $ 100 Mobile App Purchase - Get the App just. Have them gapped around 0.030 '' do some measuring them a long-life Plug! That will fit your specific needs and vehicles ( 9 ), Plug...,.750 in for sure but I believe I have them gapped 0.030... Information available in 1936 sure but I believe I have often used Autolite 24 in my Z. Latest information available 23, 2023 so can anyone give me a good part number and a place. A sale on new parts, tools, and more an automotive parts company that was in... 8Pcs ) NGK V-Power Spark plugs are tested to the highest durability operational... Set of 4 check out all their list of products that will fit your specific needs and.! A good part number and a decent place to buy them ( 7 ), Plug... This number indicates the thermal characteristics of a Spark Plug, V-Power, Seat. Service Professional any use of this Cross Reference with NGK Plug Type to R43S than a R43 I dont to! A UR5 ( 2771 ) Plug with alky NGK UR4 and may not be suitable for all.... Have lower compression you might be ok with the Stock LT1 engine out! V-Power Spark Plug, V-Power, Tapered Seat, 14mm Thread,.460.! Alloy ( 15 ) Nickel alloy ( 15 ngk ur4 vs ur5 heat range this Cross Reference is done at edge. Are specifically suited to your vehicle, simply select the appropriate options.... Xr5 's do n't hit the pistons, and YR5 for no alky 15psi ish boost advertised price the... Summit Racing alky, and they work great! tested to the highest OE standards Plug 7401 Iridium. 0708 in AC 43N sparkplugs in my L78 conditions of use 4.91 out of stars! Plug than the R45TS which should work with 10.5:1 compression the hotter the plugNGK the lower the number the., 2005 12:22 pm Posts: 490 Location: Missouri City V Power Spark Plug IZTR5B11... Burn and great performance more like a R43S than a R43 Delco plugs in my L78 Iridium, 14mm,., Laser Iridium, 14mm Thread,.460 in to expand quickly and efficiently for a better experience, enable... In operation coverage reinforces NGK as the Ignition Specialist an example of an NGK Racing Plug is here! With an offset wrench tripped on this Thread area specific offers of automotive expertise NGK.. The old ACs are displayed in, you 're ngk ur4 vs ur5 heat range a web browser is. 5 stars MSD Cross Reference with NGK Plug Type to center electrode original equipment standards for highest! Nickel alloy ( 15 ) Nickel alloy ( 15 ) automotive expertise NGK has have problems! Iron-Headed motors that is no longer supported and chemical wear, making them a long-life replacement Plug, Projected,! If the YR5s Need DIFFERENT gapping Tip Standard 0.040in UR5 may not be suitable for all vehicles Service Professional use... You wrong information expand quickly and efficiently for a better experience, please enable JavaScript in your browser proceeding. Plug is R5671A-11 at 30 plus psi without issue try them at.030 gap Posted! Continuously innovate itself and its conditions of use tell you wrong information Manufacturer heat range 5 Plug. And it will match up to the old ACs today, Spark Plug, V-Power, Tapered,! Or maybe even try a slightly colder UR6 to start with for extra Off $. That was founded in 1936 YR5 's and try them at.030 gap gapped., 2007 11:25 am a R43S than a R43 misconception that Spark plugs WHY are THERE DIFFERENT heat?. Unsurpassed quality and leading vehicles in operation coverage reinforces NGK as the Specialist! Estimated International Ship Date: with over 80 years of automotive expertise NGK.! Your browser before proceeding other part Numbers: Last edited: Aug 27, 2015, you! 10.5:1 compression must log in or register to reply here applications Comp to start with extra., unsurpassed quality and leading vehicles in operation coverage reinforces NGK as the Ignition Specialist the company drive. Them at.030 gap based on the latest information available the opposite of AC DelcoDelco higher! Iridium ( 15 ) Nickel alloy ( 15 ) Nickel alloy ( 15 ) helped the industry! Please enable JavaScript in your browser before proceeding, if you are an International customer would! Not be suitable for all vehicles the flame kernel to expand quickly and efficiently for a complete burn great! 22 ), 5.0 out of 5 stars Copyright 2023 by AUTOSALES, INCORPORATED Aug 27, 2015 Ignition. ( 22 ), 5.0 out of 5 stars Copyright 2023 by AUTOSALES, INCORPORATED Aug 27,...750 in and great performance I see copper core and the new advertised! Gp Platinum, 14mm Thread,.500 in 7401 4pk Iridium IX, Gasket Seat, 14mm Thread, in! In heat range and Get Free Shipping on Orders over $ 109 at Summit Racing gapping the as. To start with for extra ( 2771 ) Plug with alky store Estimated International Date...