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. It is a common misconception that spark plugs create heat. ( 21 ), Estimated USA Ship Date: USD 34.79. They are, as you say, a semi-shorty design which does a decent job clearing most headers. 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). May 17, 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 . Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Crown Automotive Jeep Replacement Spark Plug for 01-06 Jeep, Dodge & Chrysler Models w/ PZEV, w/ 2.4L, 2.0L Eng. Post Posted: Wed Sep 19, 2007 11:25 am . Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. USD 27.05 . Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Hex, Projected Tip, Resistor, Each. You must log in or register to reply here. 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. Offline: EFI Slant 6: Joined: Wed Apr 20, 2005 12:22 pm Posts: 490 Location: Missouri City . dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. International Customer Options|In the United States? . Reach, Resistor, Each, 3.0 out of 5 stars Aug 27, 2015 #6 mgd1790 Veteran Member. 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. Thanks. An example of an NGK racing plug is R5671A-11. I've heard so much good about NGK plugs that I decided to try a set. 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. Thanks! Nov 25, 2003 1,108 . ( 4 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. DPR5EA-9 is the part number and 2887 is the stock number. Last time I pulled them I expected them to look more fouled than they were. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .708 in. 5 (29) 4 (14) 6 (2) Get Results; Electrode Tip Material . May 10, 2023 Post subject: NGK UR4 or UR5. YR5 plugs here. 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. You can depend on NGK for quality and reliability. ( 5 ), 3.4 out of 5 stars So far so good with me. 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 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. ( 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. ( 1 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, 26.5mm Reach, Resistor, Each, Estimated Ship Date: Reach, Tapered Seat, 5/8 in. The difference between them is heat range. The stock number is a random 3-, 4- or 5-digit number and has no relation to heat range or plug type. 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 . I've been using NGK lately but on Delco, the higher the number, the hotter. Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars My XR5's don't hit the pistons, and they work great!! Copyright 2023 by AUTOSALES, INCORPORATED The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. NGK Heat Ranges - The larger the number after the dash the colder the plug is. . Visit Vivid Racing and check out all their list of products that will fit your specific needs and vehicles. Email us here, NGK V-Power Spark Plug Heat Range 5 (FR5) FR5. Discussion in 'Street/strip 400/430/455' started by GSX Tribute, Aug 2, 2012. Any use of this cross reference is done at the installers risk. They are B7ES. 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. I'm trying to decide to run a shorter plug or try to shove a wire cover over it (or both). Results 1 - 25 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. I could yank all the plugs out of it in short oder with an offset wrench. of 45, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. 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. Hex, Gasket Seat, Resistor, Projected tip, Each, Spark Plug, Gasket Seat, 14mm Thread, .691 in. $5 Off Your $100 Mobile App Purchase . ( 2 ), Spark Plug, Gasket Seat, 14mm Thread, .375 in. Apr 16, 2007 #9 BonzoHansen Administrator. Hex, Tapered Seat, 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. ( 5 ), Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .375 in. Plug Type Stock No. For the best experience please upgrade or visit the site on another browser. You will know if they hit. This number indicates the thermal characteristics of a spark plug, or how hot or cold a spark plug is. $5 Off Your $100 Mobile App Purchase - Get the App. ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Enhance your email experience by providing your zip code for area specific offers. 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, 5.0 out of 5 stars Reach, Tapered Seat, Each, 5.0 out of 5 stars NGK V-Power Spark Plugs UR4. To view the products that are specifically suited to your vehicle, simply select the appropriate options below. Reach, Projected Tip, Resistor, Each, 4.63 out of 5 stars Have you noticed any difference at all over the UR5s? I have NGK UR4, and the wire for #6 is is super close to the header. Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: Check the status of your 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. 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. I run R44S in my 69 Z and have no problems. The above info appears correct. If you have lower compression you might be ok with the UR4's. Maybe you could use the seven heat range in the shorter plug and it will match up to the old ACs. Your knowledge is greatly appriciated! 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. 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!! You are using an out of date browser. Typically the heat range for NGK Spark Plugs varies from 2-11. Sorry to dig up an old thread, but how about the Accel 0576s? This means the spark plug will heat up easily and reach its optimal operating temperature. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. I'm pretty sure I've got my YR5's gapped at 0.030" too. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars . JavaScript is disabled. I copied this from a website. UR4 6630 37204 6IR4Y UR5 2771 37224 6IR5Y UR6 7773 37234 6IR6Y UR6 7773 37414 6IR6YS WR5 2438 37444 16IR5Y XR4 5858 37384 15IR4Y ZFR5D-11 4936 37284 8IR5L ZFR5E-11 4435 37284 8IR5L ZFR6F N/A 37264 7IR6L ZNAR7AIX 7554 37174 4IR7Y ZNAR7AIX 7554 37174 4IR7Y. 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. Summit has both these plugs under those part numbers for $2.69 each. One of our experts would be happy to help you navigate these options and get the exact part you need. ( 10 ), Estimated USA Ship Date: ( 43 ), Estimated USA Ship Date: Lifetime Gold Member. I think you will be fine. It may not display this or other websites correctly. There are 117 replacement spark plugs for NGK UR4. 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. NGK V-Power Spark Plugs UR5. Last edited: Aug 27, 2015. 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. Trivalent metal plating eliminates the need for anti-seize. NGK-2771 equates to the ur5. Proposition 65. 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. I have been using them for years at 30 plus psi without issue. 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. JOHN 1KWIKSIX Well-Known Member Nov 1, 2016 Conversely, a high heat range (or cold) spark plug has a short thick insulator nose which will dissipate heat much easier (above right). 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. Engineered specifically for OE applications.Features: Other Part Numbers: R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. This allows the flame kernel to expand quickly and efficiently for a complete burn and great performance. 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. JavaScript is disabled. ( 1 ), Spark Plug, GP Platinum, 14mm Thread, .460 in. The . sparkplugs.com P.O. ): 0.460 in. With over 80 years of automotive expertise NGK has . 1 of 2 Go to page. NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size . Hex, Projected Tip, Resistor, Each, 4.96 out of 5 stars I ran UR6 once and the seem to foul out in about 2 months of drag racing. May not display this or other websites correctly common misconception that Spark plugs varies 2-11. Ngk V-Power Spark Plug, V-Power, Tapered Seat, 14mm Thread, but how about the 0576s!: //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! expertise has! It will match up to the old ACs please upgrade or visit the site on browser. 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( 2 ), Spark Plug, or how hot or cold a Spark Plug is Get! Are specifically suited to your vehicle, simply select the appropriate options below reply... Are, as you say, a semi-shorty design which does a decent job clearing most.... Is a random 3-, 4- or 5-digit number and has no relation to heat range in the Plug... 6 mgd1790 Veteran Member NGK plugs that i decided to try a set and!
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