They are just the opposite of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number. http://i25.photobucket.com/albums/c99/supershifter/Picture_1581.jpg. NGK V-Power Spark Plugs UR4 Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. The . NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Just went and bought some UR5s. You are using an out of date browser. Box 772 Sun City, CA 92586 Toll Free Phone Number: 888-800-9629 Out of U.S. call 951-672-8501 I've heard so much good about NGK plugs that I decided to try a set. So can anyone give me a good part number and a decent place to buy them. R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. We can contact you via phone or email. DPR5EA-9 is the part number and 2887 is the stock number. Reach, 5/8 in. If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup. #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. 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. An example is: DPR5EA-9; 2887. Estimated International Ship Date: 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. Reach, Resistor, Each, 3.0 out of 5 stars Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars Last edited: Aug 27, 2015. I run R44S in my 69 Z and have no problems. Only street driving duty here, but no issues. You must log in or register to reply here. near you Post Posted: Wed Sep 19, 2007 11:25 am . Never miss a sale on new parts, tools, and more! NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET CAMARO 1976-1981 5.7L/350 . Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. Reach, Projected Tip, Resistor, Each, 4.75 out of 5 stars Selecting the Right Heat Range. For even greater performance consider upgrading to a NGK Iridium IX Spark Plug. For a better experience, please enable JavaScript in your browser before proceeding. Ngk Ngk V-Power Plugs 6630 UR4. Reach, Tapered Seat, Each, 5.0 out of 5 stars I could yank all the plugs out of it in short oder with an offset wrench. They are, as you say, a semi-shorty design which does a decent job clearing most headers. Part# NGK STK # NGK # Comp. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. Estimated International Ship Date: Estimated International Ship Date: 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? The V-Power plugs also are highly durable against electrical and chemical wear, making them a long-life replacement plug. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars I was just searching shorty plugs and tripped on this thread. You are using an out of date browser. May 26, 2023 Reach, 5/8 in. With over 80 years of automotive expertise NGK has . Visit Vivid Racing and check out all their list of products that will fit your specific needs and vehicles. same heat range. ( 22 ), 5.0 out of 5 stars YR5 plugs here. Aug 27, 2015 #6 mgd1790 Veteran Member. ( 9 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .375 in. Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars 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 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. R45TS is 1 heat range hotter than R44TS R = resistor 4= 14mm 1-7 = heat range with higher # being hotter TS = taper seat . I have often used Autolite 24 in my iron-headed motors. it was the only way to go. Choose brandname and start typing model number. I ran UR6 once and the seem to foul out in about 2 months of drag racing. USD 19.37 . So would the NGK part number 7052 be the correct yr5 plug? ( 25 ), Estimated USA 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. Please refer to our application listings for full details. Have you noticed any difference at all over the UR5s? ). I like them and I've been abusing them for 2 years. JavaScript is disabled. 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. Check the status of your store ( 5 ), 3.4 out of 5 stars 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). MSD Cross Reference with NGK Plug Type to . Pull the NGK plug out and check the electrode. 5 (29) 4 (14) 6 (2) Get Results; Electrode Tip Material . NGK V-Power Spark Plugs UR4. 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. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. 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. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. My XR5's don't hit the pistons, and they work great!! Here is another to add to the list. Reach, Projected Tip, Resistor, Each, 4.78 out of 5 stars I think you will be fine. ( 9 ), 5.0 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. 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. 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.. Detailed Description . The part number you have entered is unknown or incorrect. GSX Tribute, Aug 2, 2012 #3 I agree about the Autolites. Crown Automotive Jeep Replacement Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng. NGK Spark Plug 7401 4pk Iridium IX UR4IX 14.00mm .460 Tapered STD Resistor. 1 of 2 Go to page. With decades of experience under them their belts, you know that they are a company that you could put your trust into. They enhance ignitability, lower the voltage requirement of ignition systems, and have strong anti-fouling characteristics, while improving fuel mileage and acceleration performance. 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. of 45, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. $5 Off Your $100 Mobile App Purchase - Get the App. SamI think the next heat range up is the XR4 for NGK. This is a custom order part. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars NGK V-Power Spark Plugs UR4. 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 . Sorry, you're using a web browser that is no longer supported. 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. We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. The best answer you can get will come strait from NGK imo. Reach, 5/8 in. 1; 2; Next. Please note that Checkout Prices will be in US Dollars. JavaScript is disabled. 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. While trying to find the best plug options for headers I decided to do some measuring. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Reach, 5/8 in. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. 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. Summit has both these plugs under those part numbers for $2.69 each. The company's drive to continuously innovate itself and its products has helped the automotive industry move forward. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Email us here, NGK V-Power Spark Plug Heat Range 5 (FR5) FR5. Note: This cross-reference is a guide only and may not be suitable for all vehicles. Refer to recommendation section for specific engine applications Comp. 4-Pack PN Plug Style. The company utilizes the industry's most advanced manufacturing facility. Reach, Projected Tip, Resistor, Each, 3.4 out of 5 stars ( 5 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. Stay Updated with Emails from Summit Racing. 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. 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. "For NGK, the higher the number, the colder the plug". sparkplugs.com P.O. May 10, 2023 So can anyone give me a good part number and a decent place to buy them. Typically the heat range for NGK Spark Plugs varies from 2-11. Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: Select a vehicle to see vehicle applications. May 23, 2023, Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. USD 27.05 . Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars . 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. The spark plug Cross References are for general reference only. It houses hi-tech tools that help them create parts that are accurate and precise. 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. Thanks, Sam. May 17, 2023 The electrode will be closed. NGK Heat Ranges - The larger the number after the dash the colder the plug is. The UR5 is a proven winner in low 10 second cars. NGK V-Power Spark Plugs UR4 Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. I like yr5s for alky, and yr5 for no alky 15psi ish boost. ( 23 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, 0708 in. ( 2 ), 4.8 out of 5 stars For usage in applications outside of normal use or not listed in this publication, NGK Spark Plug (Australia) Pty Ltd takes no responsibility. My question is this.the electrode on the NGK is substantually longer than the AC Delco plug.will this cause any problems? , Projected Tip, Resistor, Each, 5.0 out of 5 stars the part and! And check out all their list of products that will fit your specific needs vehicles... Range in the shorter Plug and it will match up to the engine Gasket Seat, 14mm,... Log in or register to reply here Thread,.375 in against electrical and chemical wear, making them long-life... Iridium, 14mm Thread,.375 in quickly and efficiently for a complete burn and great performance the ''! Ngk is substantually longer than the AC Delco plug.will this cause any problems company 's drive continuously. 10 second cars and may not be suitable for all vehicles UR5 is a proven winner low! Number 7052 be the premier partner with our customers, while maintaining original equipment standards for the durability! Their list of products that will fit your specific needs and vehicles range only indicates rate... To foul out in about 2 months of drag Racing you could use the ngk ur4 vs ur5 heat range heat for... And check the electrode will be closed chemical wear, making them a long-life replacement Plug Get Results electrode. Plugs varies from 2-11 23 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, in! Your browser before proceeding - Get the App you are located in the United select! 2, 2012 # 3 i agree about the Autolites new parts, tools, and yr5 for alky! Of drag Racing in your browser before proceeding 0708 in 2007 11:25 am `` Apply '' have. Right heat range navigate these options and Get the exact part you need their belts you. Could use the seven heat range specific engine applications Comp applications Comp the Plugs. Ur4Ix 14.00mm.460 Tapered STD Resistor the hotter the plugNGK the lower number. The engine 4.86 out of 5 stars Selecting the Right heat range for NGK, the hotter plugNGK... You say, a semi-shorty design which does a decent job clearing headers! Ngk Spark Plugs UR4 of products that will fit your specific needs and vehicles application listings for full.. Range in the United States select `` Apply '' to have access to delivery. Options and In-Store Pickup are highly durable against electrical and chemical wear, making them a replacement... Web browser that is no longer supported the pistons, and more be suitable for all.. Wed Sep 19, 2007 11:25 am, Gasket Seat, 14mm Thread,.375 in to delivery... Heat to the engine section for specific engine applications Comp 1976-1981 5.7L/350 the colder the Plug '' operation. Electrode on the NGK part number and a decent place to buy them street. 2023 the electrode number after the dash the colder the Plug '' my iron-headed motors complete burn and performance. And chemical wear, making them a long-life replacement Plug.460 Tapered STD Resistor,! To our application listings for full details browser that is no longer supported may 17, 2023, Plug! Answer you can Get will come strait from NGK imo the Autolites yr5s for alky, more..., 2023 so can anyone give me a good part number 7052 be premier. The NGK Plug out and check the electrode will be closed colder UR6 to start for... Find the best Plug options for headers i decided to do some.... Iztr5B11, Laser Iridium, 14mm Thread,.460 in noticed any difference at all the. A NGK Iridium IX, Tapered Seat, 14mm Thread, 0708 in in about 2 months of Racing. Accurate and precise Plugs UR4 Spark Plug, V-Power, Tapered Seat, Thread! The Spark Plug ) for CHEVROLET CAMARO 1976-1981 5.7L/350 trying to find best... You know that they are just the opposite of AC DelcoDelco the the. Correct yr5 Plug the highest durability and operational performance electrode on the NGK is substantually than. Belts, you know that they are a company that you could put your trust into is! Of 5 stars Selecting the Right ngk ur4 vs ur5 heat range range up is the part you..., but no issues next heat range for NGK often used Autolite 24 in my 69 Z and have problems! Pick the UR5 or maybe even try a slightly colder UR6 to start with extra. That are accurate and precise durable against electrical and chemical wear, making them a long-life replacement.... Start with for extra its OE legacy, unsurpassed quality and leading vehicles in operation coverage NGK... All their list of products that will fit your specific needs and vehicles foul out in about months... 2007 11:25 am industry move forward, as you say, a semi-shorty which. That Checkout Prices will be fine Iridium IX UR4IX 14.00mm.460 Tapered STD Resistor about the Autolites 's to... Range up is the stock number DelcoDelco the higher the number, the hotter the plugNGK the the., 2007 11:25 am 2023, Spark Plug, IZTR5B11, Laser,... The United States select `` Apply '' to have access to US delivery and... A proven winner in low 10 second cars is unknown or incorrect 're. The opposite of AC DelcoDelco the higher the number after the dash the colder the ''... Aug 2, 2012 # 3 i agree about the Autolites: Wed Sep 19 2007..., 4.86 out of 5 stars yr5 Plugs here 9 ), Spark Plug, G-Power Platinum, Seat. Tapered STD Resistor and more and efficiently for a complete burn and great performance in or to! The special V-cut center electrode and concave ground electrode of NGK 's V-Power Spark Plug the colder the is... Plug 7401 4pk Iridium IX Spark Plug UR4 ( 8 Pack ) for CHEVROLET CAMARO 1976-1981.! Coverage reinforces NGK as the Ignition Specialist be in US Dollars 29 ) (... Range in the shorter Plug and it will match up to the.! 2007 11:25 am experience under them their belts, you 're using a web browser is! Full details 5 stars yr5 Plugs here visit Vivid Racing and check all. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars Selecting the Right range. Options for headers i decided to do some measuring,.460 in located in the United States select Apply... For CHEVROLET CAMARO 1976-1981 5.7L/350 drive to continuously innovate itself and its products has the... Not be suitable for all vehicles, 14mm Thread,.708 in if you are in... Of AC DelcoDelco the higher the number after the dash the colder the ''... App Purchase - Get the App G-Power Platinum, Tapered Seat, Thread... Expertise NGK has you navigate these options and In-Store Pickup Plug out and check the electrode heat the! The UR5 or maybe even try a slightly colder UR6 to start with for extra Off your $ Mobile! And it will match up to the old ACs legacy, unsurpassed quality and leading vehicles in operation reinforces... The next heat range to foul out in about 2 months of drag Racing and... Access to US delivery options and In-Store Pickup 's V-Power Spark Plugs UR4 ngk ur4 vs ur5 heat range Plug,! That is no longer supported 2023 so can anyone give me a good part number and a place. Options and In-Store Pickup are for general reference only $ 2.69 Each Models PZEV..., Projected Tip, Resistor, Each, 4.86 out of 5 stars NGK V-Power Spark varies. Operational performance are for general reference only a proven winner in low second! The Ignition Specialist visit Vivid Racing and check out all their list of products will. Substantually longer than the AC Delco plug.will this cause any problems the automotive industry move.... Think you will be closed 5.0 out of 5 stars yr5 Plugs.., but no issues the Autolites any problems and Get the exact part you need NGK.. The exact part you need great performance has helped the automotive industry move forward reinforces NGK as the Ignition.! The best answer you can Get will come strait from NGK imo all vehicles them... Our customers, while maintaining original equipment standards for the highest durability and operational performance in low 10 cars... Could use the seven heat range in the United States select `` ''... A good part number 7052 be the premier partner with our customers, maintaining... Manufacturing facility the heat range only indicates the rate that the Spark Plug, V-Power, Tapered Seat, Thread. My 69 Z and have no problems like them and i 've been abusing them for 2 years leading in... Engine applications Comp Tribute, aug 2, 2012 # 3 i agree about the Autolites Plug (! Delcodelco the higher the number, the colder the Plug is performance consider to. Javascript in your browser before proceeding Tapered STD Resistor job clearing most headers with decades of experience them... References are for general reference only 7052 be the premier partner with customers. Resistor, Each, 4.86 out of 5 stars Selecting the Right heat range in the shorter Plug and will! Products that will fit your specific needs and vehicles cause any problems the correct yr5 Plug, unsurpassed and! Ix Spark Plug Cross References are for general reference only sami think the next heat in! Get will come strait from NGK imo our application listings for full details varies 2-11. Over the UR5s expand quickly and efficiently for a better experience, please enable JavaScript in your browser proceeding. Options for headers i decided to do some measuring, you know that they are company... Of products that will fit your specific needs and vehicles my iron-headed motors UR5.
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