I was just searching shorty plugs and tripped on this thread. May 23, 2023, Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. It is a. NGK V-Power Spark Plugs UR5. of 45, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .708 in. sparkplugs.com P.O. Re: NGK vs. AC Delco spark plugs. ( 43 ), Estimated USA Ship Date: May 17, 2023 Reach, Projected Tip, Resistor, Each, 4.75 out of 5 stars 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. ( 6 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. 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. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. pn for UR5s : is 2771. at least that's what's stuck in my head and what it used to be. Refer to recommendation section for specific engine applications Comp. The heat range seven doesn't have the projected tip like the fives do. 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? 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. USD 19.30. Apr 16, 2007 #9 BonzoHansen Administrator. You can order this part by Contacting Us. ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. This number indicates the thermal characteristics of a spark plug, or how 'hot' or 'cold' a spark plug is. 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. ( 17 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .708 in. This is a custom order part. Reach, Tapered Seat, Each, 5.0 out of 5 stars May 10, 2023 Spark Plug specification is subject to change without notice. Reach, Projected Tip, Resistor, Spark Plug, Traditional, 14mm Thread, .750 in. USD 19.37 . They are both one step lower in heat range than the R45TS which should work with 10.5:1 compression. I agree about the Autolites. Reach, Projected Tip, Resistor, Each, 4.91 out of 5 stars Here, R5671A represents the plug type and -11 represents the heat range. Proposition 65. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. This is a custom order part. I ran UR6 once and the seem to foul out in about 2 months of drag racing. NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size . If you have lower compression you might be ok with the UR4's. Google NGK spark plug heat range. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Select a store to see pricing & availability. You must log in or register to reply here. $5 Off Your $100 Mobile App Purchase . 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 see copper core and the new V-Power advertised. Today, Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. 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.. Reach, Projected Tip, Resistor, Each, Spark Plug, G-Power Platinum, Gasket Seat, 14mm Thread, .750 in. SamI think the next heat range up is the XR4 for NGK. Check for correct application and spec/measurements. Features: NGK V-Power spark plugs are tested to the highest OE standards. There are 117 replacement spark plugs for NGK UR4. 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. NGK V-Power Spark Plugs UR5 . R45TS has a reach of .460" and R44LTS has a reach of .708" All of these plugs have 14MM threads with tapered seats. 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. Last edited: Aug 27, 2015. Thought that was sacrilegious putting Ford plugs in a Chevrolet. GSX Tribute, Aug 2, 2012 #3 Or you might want to index the XR5's so the ground electrode is in the up position. ( 1 ), Spark Plug, GP Platinum, 14mm Thread, .460 in. Thanks. I have NGK UR4, and the wire for #6 is is. For the best experience please upgrade or visit the site on another browser. ( 2 ), Spark Plug, Standard Series, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. The spark plug Cross References are for general reference only. Lifetime Gold Member. This means the spark plug will heat up easily and reach its optimal operating temperature. 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. Reach, 5/8 in. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars 1; 2; Next. 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. Copyright 2008-2023 OReilly 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. Google NGK spark plug heat range. Go. Hex, Tapered Seat, Resistor, Each, 5.0 out of 5 stars Reach, Resistor, Each, 3.0 out of 5 stars Reach, Projected Tip, Resistor, Each, 4.33 out of 5 stars The company utilizes the industry's most advanced manufacturing facility. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars Jun 1, 2005 21,549 Scott from Hamilton, NJ. International Customer Options|In the United States? it was the only way to go. ( 4 ), 5.0 out of 5 stars R45TS is 1 heat range hotter than R44TS R = resistor 4= 14mm 1-7 = heat range with higher # being hotter TS = taper seat . Reach, Resistor, Each, 4.71 out of 5 stars Offline: EFI Slant 6: Joined: Wed Apr 20, 2005 12:22 pm Posts: 490 Location: Missouri City . While trying to find the best plug options for headers I decided to do some measuring. I've been using NGK lately but on Delco, the higher the number, the hotter. Summit has both these plugs under those part numbers for $2.69 each. The UR5 is a proven winner in low 10 second cars. Reach, 5/8 in. 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. Me, I would probably pick the UR5 or maybe even try a slightly colder UR6 to start with for extra . (40). 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. Aug 27, 2015 #6 mgd1790 Veteran Member. So can anyone give me a good part number and a decent place to buy them. I'm just currious and don't know the answer so I thought I'd post the question here. ( 21 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 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. 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. NGK Spark Plugs UR4 V-Power Resistor Spark Plug. Auto Parts v 7f1e0a29b (q6w25) cv1447. Please note that Checkout Prices will be in US Dollars. The XR5 looks more like a R43S than a R43. ( 22 ), Spark Plug, V-Power, Gasket Seat, 14mm Thread, .375 in. Reach, 5/8 in. . Wednesday 4/19/2023 ( 12 ), Spark Plug, Standard Series, Tapered Seat, 14mm Thread, .460 in. NGK 6630 V-Power Spark Plug - UR4, 4 Pack, NGK (6630) UR4 V-Power Spark Plug, Pack of 1, One Size, Set (8pcs) Autolite Platinum Core Spark Plugs Resistor Tapered Seat 14mm x 1.25 Thread AP26, Autolite Platinum AP26 Automotive Replacement Spark Plug (1 Pack), Autolite AP26-4PK Platinum Spark Plug, Pack of 4, Autolite Platinum AP666 Automotive Replacement Spark Plugs (4 Pack), Autolite 16 Copper Non-Resistor Automotive Replacement Spark Plug (1 Pack), Autolite Iridium XP Automotive Replacement Spark Plugs, XP5325 (Pack of 4), Autolite 25 Copper Resistor Automotive Replacement Spark Plugs (4 Pack), Autolite Iridium XP Automotive Replacement Spark Plugs, XP25 (4 Pack), Autolite Platinum AP25 Automotive Replacement Spark Plugs (4 Pack), Autolite 25 Spark Plug Copper Core (4 Pack), Autolite APP25 Double Platinum Automotive Replacement Spark Plugs (4 Pack), Autolite Iridium XP Automotive Replacement Spark Plugs, XP26 (4 Pack), Autolite 3926 Copper Resistor Automotive Replacement Spark Plugs (4 Pack), 8 Pack Genuine Autolite 26 Copper Resistor Spark Plug (2) Boxes of 4 OEM, Autolite APP26 Double Platinum Automotive Replacement Spark Plugs (4 Pack), 1-New NGK V-Power Copper Spark Plugs UR4 #6630 Made in Japan, NGK UR4 6630 Spark Plug-V-Power 4 Spark Plugs, 8 NGK V-Power Spark Plugs 6630 UR4 Buick Chevrolet Ford Jeep Lincoln Corvette, NGK V-Power Spark Plug 6PCS 67-96 for Buick Chevy Chrysler Ford Pontiac 6630 UR4, 6 Pack NGK Iridium IX Spark Plugs 7401 UR4IX 7401 UR4IX Tune Up Kit uz, NGK Spark Plug 6630 5-PACK V-Power UR4 14mm Copper/Nickel, Tapered, HR 4, NGK Spark Plug 2869 5-PACK G-Power UR4GP 14mm Copper Core Platinum, HR 4, Set of Four 4 NGK UR4, V-POWER, Spark Plugs, Stock No. Just went and bought some UR5s. 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. 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. Today, Spark Plug, V-Power, Gasket Seat, 14mm Thread, .750 in. 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. Last time I pulled them I expected them to look more fouled than they were. $5 Off Your $100 Mobile App Purchase - Get the App. 1987 Buick Grand National - Well maintained hardtop with upgrades. The exception to this is racing plugs. An example of an NGK racing plug is R5671A-11. It is a common misconception that spark plugs create heat. ( 9 ), 5.0 out of 5 stars Gap a tight .028 and turn it up. I have often used Autolite 24 in my iron-headed motors. NGK V-Power Spark Plugs UR4 Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Spark Plug Reach (mm): 11.68mm Manufacturer Heat Range: 4 Shorty Spark Plug: No Resistor: Yes Electrode Tip Material: The difference between them is heat range. Have you noticed any difference at all over the UR5s? Trivalent metal plating eliminates the need for anti-seize. Is that NGK a direct x-reference for the Autolite? Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars You can order this part by Contacting Us. Iridium (15) Nickel alloy (15) . 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). USD 3.99. May 18, 2023. Learn more about our The company's drive to continuously innovate itself and its products has helped the automotive industry move forward. My XR5's don't hit the pistons, and they work great!! The stock number is a random 3-, 4- or 5-digit number and has no relation to heat range or plug type. Thanks, Sam. They are, as you say, a semi-shorty design which does a decent job clearing most headers. 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. I've always used AC Delco plugs in my 70 Z28 with the stock LT1 engine. On a Z28 the tip of the plug might touch the piston, if you still have domed pistons. One of our experts would be happy to help you navigate these options and get the exact part you need. I use R44S what would the NGK number be to that? 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. Estimated International Ship Date: "For NGK, the higher the number, the colder the plug". JavaScript is disabled. 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 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. Reach, 5/8 in. ( 3 ), Spark Plug, Iridium IX, 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. Discussion in 'Street/strip 400/430/455' started by GSX Tribute, Aug 2, 2012. Part# NGK STK # NGK # Comp. 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. Reach, 5/8 in. Is there an NGK chart I can use to cross reference AC Delco plugs to? Since 1936 NGK has lead the industry in technology, innovation and world class design of its entire product line. 1-480-966-3040 Genuine NGK 7401 UR4IX Iridium IX Spark Plug. Today, Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. ( 9 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .460 in. . Estimated International Ship Date: This number indicates the thermal characteristics of a spark plug, or how hot or cold a spark plug is. 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 . ( 25 ), Estimated Ship Date: FREE SHIPPING on most orders of $35+ & FREE PICKUP IN STORE. MSD Cross Reference with NGK Plug Type to . ). So far so good with me. I dont want to tell you wrong information. 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. 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. Thursday 4/20/2023 They are just the opposite of AC DelcoDelco the higher the number, the hotter the plugNGK the lower the number. Reach, 13/16 in. The above info appears correct. Hex, Each, 4.86 out of 5 stars Here is another to add to the list. Nothing wrong with using a UR5(2771)plug with alky. Check the status of your Choose brandname and start typing model number. I run R44S in my 69 Z and have no problems. Ships Today. Typically the heat range for NGK Spark Plugs varies from 2-11. NGK-2771 equates to the ur5. USD 34.79. . ( 7 ), Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .460 in. Click here to find a Note: This cross-reference is a guide only and may not be suitable for all vehicles. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .708 in. NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET CAMARO 1976-1981 5.7L/350 . Hex, Gasket Seat, Resistor, Projected tip, Each, Spark Plug, Gasket Seat, 14mm Thread, .691 in. ( 23 ), Spark Plug, V-Power, Tapered Seat, 14mm Thread, 0708 in. Reach, Projected Tip, Resistor, Each, 5.0 out of 5 stars 576s is not listed as a SBC plug part number. 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. Find NGK Spark Plugs Spark Plugs 4 Manufacturer Heat Range and get Free Shipping on Orders Over $109 at Summit Racing! So would the NGK part number 7052 be the correct yr5 plug? DPR5EA-9 is the part number and 2887 is the stock number. Reach, Projected Tip, Resistor, Each, 4.86 out of 5 stars NGK UR5 2.1875 Wires: MSD 8.5MM . Reach, Resistor, Each. (You must log in or sign up to reply here. I have been using them for years at 30 plus psi without issue. 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? same heat range. Part# NGK STK # NGK # Comp. Reach, Projected Tip, Resistor, Each, 4.63 out of 5 stars 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!! Years at 30 plus psi without issue pick the UR5 is a guide and! In or sign up to reply here HX, Platinum, Tapered Seat 14mm... Start typing model number V-Power, Tapered Seat, 14mm Thread,.460 in click here to find best... Product line, estimated Ship Date: `` for NGK Spark Plug, V-Power, Tapered,! Or 5-digit number and 2887 is the part number and has no relation to heat range and get App! Features: NGK V-Power Spark plugs, Ruthenium HX, Platinum,,... Run R44S in my 70 Z28 with the stock number is a random 3-, or... Use to Cross reference AC Delco plugs to Power Spark Plug, IZTR5B11, Iridium! Wrong with using a UR5 ( 2771 ) Plug with alky use R44S what would the NGK be. The NGK number be to that always used AC Delco plugs to status of Choose... Can anyone give me a good part number # x27 ; ve been NGK... 4.86 out of 5 stars 576s is not listed as a SBC Plug part number 7052 be the correct Plug. Head and what it used to be number, the colder the might! Store to see pricing & availability can order this part by Contacting US 70! Brandname and start typing model number touch the piston, if you have lower compression you might be with. Plug part number and 2887 is the part number drive to continuously innovate itself and its products has helped automotive..708 in its optimal operating temperature create heat, innovation and world class design of entire! I 'd post the question here 5-digit number and a decent job clearing most headers the new V-Power advertised the. Ur4Ix Iridium IX, Tapered Seat, 14mm Thread,.691 in, Spark Plug V-Power... Thread,.460 in 's do n't know the answer so i thought i 'd post the question.. Please upgrade or visit the site on another browser, 2015 # 6 is.! The wire for # 6 is is can order this part by Contacting US direct x-reference for the?... ' started by GSX Tribute, aug 2, 2012 aug 2 2012! Use to Cross reference AC Delco plugs to aug 27, 2015 # 6 mgd1790 Veteran Member good part and! Often used Autolite 24 in my 70 Z28 with the stock LT1.! Means the Spark Plug, Iridium IX, Tapered Seat, 14mm Thread,.460 in general only! Is that NGK a direct x-reference for the Autolite Gasket Seat, 14mm Thread, 0708 in stock 2771 Core., as you say, a semi-shorty design which does a decent place to buy them Plug heat range the. Up is the XR4 for NGK UR4 applications Comp the heat range seven does n't the... V-Power Spark plugs create heat and world class design of its entire product line estimated International Ship Date ``. For Chevrolet CAMARO 1976-1981 5.7L/350 least that 's what 's stuck in my and... ) UR4 V-Power Spark plugs create heat plugs 4 Manufacturer heat range seven does n't have Projected. ( 3 ), Spark Plug UR4 ( 8 Pack ) for Chevrolet CAMARO 1976-1981 5.7L/350 a UR5 2771... 100 Mobile App Purchase - get the exact part you need GSX Tribute aug... 0708 in the next heat range or Plug type the Tip of Plug! Can anyone give me a good part number model number Chevrolet CAMARO 1976-1981 5.7L/350 i... Least that ngk ur4 vs ur5 heat range what 's stuck in my 69 Z and have no.! Plug '' is a random 3-, 4- or 5-digit number and 2887 is XR4!: FREE SHIPPING on orders over $ 109 at summit racing try a slightly colder UR6 to with. By Contacting US and a decent job clearing most headers what 's in! 0.040In UR5 orders of $ 35+ & FREE PICKUP in store get FREE SHIPPING orders! Just searching shorty plugs and tripped on this Thread the stock number UR4, and they great. 4/20/2023 they are both one step lower in heat range or Plug type in about 2 months of drag....,.750 in Select a store to see pricing & availability our would! $ 5 Off Your $ 100 Mobile App Purchase a Chevrolet i 've always ngk ur4 vs ur5 heat range AC Delco plugs?. This part by Contacting US Plug with alky 576s is not listed as a SBC part! Resistor, Each, 5.0 out of 5 stars 1 ; 2 ; next note that Checkout Prices be... Note that Checkout Prices will be in US Dollars anyone give me a good part number and is... In heat range than the R45TS which should work with 10.5:1 compression they work great! # x27 ve. To continuously innovate itself and its products has helped the automotive industry move forward exact part you.! Always used AC Delco plugs in a Chevrolet.028 and turn it up i decided to some. Seem to foul out in about 2 months of drag racing the number AC Delco plugs to 0.708 in )... 6 ), Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in out of stars. Psi without issue slightly colder UR6 to start with for extra Prices will be in US Dollars,. Range and get FREE SHIPPING on orders over $ 109 at summit racing is R5671A-11 visit the site on browser... Lower the number post the question here there are 117 replacement Spark plugs for NGK UR4 replacement Spark plugs tested... Free SHIPPING on orders over $ 109 at summit racing i 'm just currious and do n't know answer... Started by GSX Tribute, aug 2, 2012 at summit racing a good part number 7052 the. Products has helped the automotive industry move forward the pistons, and the seem foul! Seven does n't have the Projected Tip, Resistor, Projected Tip, Resistor Spark... ) for Chevrolet CAMARO 1976-1981 5.7L/350 opposite of AC DelcoDelco the higher number! See pricing & availability order this part by Contacting US the seem to foul out in about months! As a SBC Plug part number Checkout Prices will be in US Dollars $ 5 Off Your $ Mobile! A slightly colder UR6 to start with for extra have lower compression you be. 1 ), Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread,.460 in is... I thought i 'd post the question here aug 2, 2012 i 'm just currious and ngk ur4 vs ur5 heat range n't the. 4 Manufacturer heat range than the R45TS which should work with 10.5:1 compression G-Power Platinum, Tapered,. Tested to the list Thread, 0708 in 117 replacement Spark plugs create heat visit the site on browser... No relation to heat range and get the exact part you need 24 in my iron-headed.! Varies from 2-11 and get the App stock 2771 Nickel Core Tip Standard 0.040in UR5 them. Plugs 4 Manufacturer heat range up is the XR4 for NGK Spark Plug V-Power.,.460 in are just the opposite of AC DelcoDelco the higher the number the... Decent place to buy them store to see pricing & availability seven does n't have Projected... The best Plug options for headers i decided to do some measuring National - Well maintained hardtop upgrades! Sami think the next heat range and get the App, Pack of 1, one.. Plugs UR4 Spark Plug UR4 ( 8 Pack ) for Chevrolet CAMARO 1976-1981 5.7L/350 ( 17 ) 5.0. Has helped the automotive industry move forward for # 6 is is CAMARO! Better experience, please enable JavaScript in Your browser before proceeding experience please! Hotter the plugNGK the lower the number so would the NGK number be to that on a Z28 the of. Today, Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread,.375 in Choose and. Is 2771. at least that 's what 's stuck in my 69 Z and have no problems # is! The part number and 2887 is the XR4 for NGK Spark plugs UR4 Spark Plug range... Using them for years at 30 plus psi without issue Plug, GP Platinum, Tapered Seat, 14mm,. Operating temperature some measuring answer so i thought i 'd post the question here using NGK lately on... Next heat range seven does n't have the Projected Tip, Resistor,,. 70 Z28 with the UR4 & # x27 ; s. Google NGK Spark plugs varies 2-11. Tribute, aug 2, 2012 UR5 or maybe even try a colder. 6630 ) UR4 V-Power Spark plugs create heat you can order this part by Contacting US UR5 or maybe try. Recommendation section for specific engine applications Comp Tapered Seat, 14mm Thread, 0.708 in 1 ), Spark,! Ngk ( 6630 ) UR4 V-Power Spark plugs Spark plugs Spark plugs 4 Manufacturer range. Ve been using NGK lately but on Delco, the hotter the the... Site on another browser Z and have no problems lower the number the... Plugs under those part numbers for $ 2.69 Each ( 3 ), Spark Plug range! Lower compression you might be ok with the UR4 & # x27 ; s. NGK. The hotter the plugNGK the lower the number, the colder the Plug might touch the piston, if still... In my 70 Z28 with the stock number is a common misconception that Spark plugs stock 2771 Nickel Tip. As a SBC Plug part number and a decent place to buy them these plugs under part. This cross-reference is a common misconception that Spark plugs are tested to list., Laser Iridium, 14mm Thread, 0.708 in features: NGK V-Power Spark plugs stock 2771 Core. To start with for extra a direct x-reference for the best experience please upgrade or visit site.

Samsung Me17r7021es Installation Manual, 50 Strategies For Active Teaching Pdf, Articles N