Ac delco heat range spark plug charts

Best Spark Plug for Preliminary Heat Range: AC Delco 41-962. Shell Design. ... AC Delco 41-962 Spark Plug Pack AD Spark Plug Pack. To start with, the 41-962’s are easy to install even if you are new to automotive maintenance and may be doing this for the first time. This is the original plug installed at the factory so there is no ...

Ac delco heat range spark plug charts. Hvymtlc5. Melting Slicks. Thread Starter. Member Since: Mar 2004. Location: Lake Ozark, MO. Posts: 3,469. Likes: 0. Received 18 Likes on 5 Posts. AC sparkplug heat range. In the AC Delco world, is the smaller the number a colder plug? For example, which is the colder plug, an R43T or an R44T? Reply Like. 08-23-2004, 12:49 PM. # 2. MotorHead.

Battery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovanPlug acdelco spark iridium ac chart delco plugs 41 heat pro each gm amazon professional glow parts warranty read comparison Spark plug ac heat range plugs delco numbering system forum chart equivalent k10 modern rods hot forums corvetteforum replySpark …

707773443538. Our Price: $10.99. Current Stock: 48. Quantity: Description. Additional Details. ACDelco 12621258 41-110 Iridium Spark Plug. ACDelco Professional Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today.Some are using a lower number for a hotter plug where as some others are using a higher number for a hotter plug. I am going to to stick with AC Delco and I would like to understand how their heat range numbering system works. The higher the number, the hotter the plug on AC delco's.performance may result. See your local installer or retailer for details. The prefix “41” stands for the manufacturer’s product line (e.g., 41 = spark plug). Numbers. after the prefix indicate the type of spark plug and also the specific application: · 100 – 199 = Iridium. · 600 – 699 = Resistor.Yamaha's YZF-R6 has been a favorite among track-day riders and racers. Praised for its agility and lightweight frame, the R6 has earned a reputation for performance. While the bike...Performing a bit of simple, routine maintenance on your lawn mower will make it last longer, and keep it running smoothly all summer long. From changing the oil and spark plug to c...Heat Range Chart VDL Fuel System's Spark Plug Heat Range Recommendations Note that these heat ranges are Champion's numbers and can be converted to the equivalent plug for any major brand. ... ACDelco; gmparts.com; Autolite; (855) 200-5200; autolite.com; Bosch; (888) 715-3616; boschautoparts.com; Brisk …

The Ac Delco Spark Plug Decoder Table The Ac Delco Spark. Product Review Racing Technology Ap 22. Auto Parts Spark Plugs And Glow Plugs Acdelco. Upped Comp Pistons What Spark Plugs Third Generation F Body. ... Ngk Heat Range Chart Trinity ...Aug 26, 2005 ... which ones hold heat more than the other, 45's or 44's ? ac delco plugs* what should i run in an 84 229 v-6 ? i need to pull a coupe plugs ...A single car has around 30,000 parts. Most drivers don’t know the name of all of them; just the major ones yet motorists generally know the name of one of the car’s smallest parts ...We would like to show you a description here but the site won’t allow us.When it comes to maintaining the performance and efficiency of your vehicle’s engine, choosing the right spark plug is crucial. The heat range and gap of a spark plug play a signif...Visually inspect spark plugs for signs of wear. Follow these steps to remove spark plugs for inspection, servicing or replacement: Grasp the spark plug boot and gently rotate it 90 degrees counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use a spark plug boot removing tool.Ac delco spark plug heat range chart Spark plug Spark plug info Champion autolite ngk accel chart plugs brisk iridium denso performance yttrium resistor groove oe w0133 dealer truckid n5 lgs savana. Printable Materials. Browse Printable Learning. Menu.

Watch this video to find out about the importance of using a kitchen range hood vented to the outside to remove heat, moisture, and pollutants from cooking. Expert Advice On Improv...Ac delco plug heat range chartDelco decoder blower pdf4pro Ac spark plug heat range chartAc delco spark plug heat range chart. Ac delco plug heat range chart . Check Details. Check Details. AC Delco Spark Plugs for 4.3L - Iridium vs. Double Platinum? - Page 2 - Blazer Forum - Chevy.Ac Delco Heat Range Spark Plug Charts, Cross Reference Guide E3 Spark Plugs, Choosing the Right Spark Plug Manualzz. Home; 2024-02-15; 2024-02-14; 2024-02-13; 2024-02-12; 2024-02-11; 2022-12-27; 2017-03-27; 2013-08-22; 2023-10-20; 2019-11-21; ac delco heat range spark plug charts. How do I select a replacement …Heat range spark plugs chart Acdelco spark rapidfire plug professional Spark plug gap(ac plugs)on 1986 gmc 305.4 bbl is it 035 or 045? Acdelco spark conventional Spark plug analysis chartSpark delco 3l iridium Ac delco spark plug gap chartAcdelco professional conventional spark plug (pack of 1) r42lts.Mar 9, 2021 ... After significant efforts to isolate a persistent misfire, I have come across one more hurdle to overcome. In today's world, you need to be ...

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Set custom price range: to. $2 - $4 (8) $4 - $6 (34) $6 - $8 (15) $8 - $10 (39) ... AC Delco spark plugs are engineered to provide the best performance for your engine. These plugs are rigorously tested under extreme conditions to ensure that they deliver reliable performance. ACDelco plugs are created from the highest quality materials to ...Check Details Ac delco spark plug heat range chart. Guide to understanding spark plug heat rangesKozy heat slayton 42 reviews: r45ts spark plug heat range Set of 8 ac delco 41-993 iridium spark plugs 19256067Ac delco spark plug application guide.Spark autolite rodder numbers Autolite spark accel plugs 1965 Cant find ac plug heat range chart.... Ac delco heat range chart. Spark plug range delcoDiagnose misfires — ricks free auto repair advice ricks free auto Autolite spark plug heat range chart tabla de … / autolite-spark-plugAutolite spark plug heat range chart tabla de …ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are the high quality replacement ideal for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are ...acdelco 41-801 3248 fr5gp 41-802 5760 pgr5c-11 41-803 3547 ur5gp 41-804 5555 pfr6g-11 41-805 3784 ptr5d-10 41-806 1041 zfr6a-11 41-806 3271 pzfr6f-11 41-807 7781 zfr5lp-13g 41-808 2685 fr4gp 41-809 3547 ur5gp 41-810 7740 ptr5c-13 41-810 97287 itr5h13 41-811 7159 tr55-1gp 41-812 3689 tr6ix 41-812 7740 ptr5c-13 41-813 2635 gr4 41-814 2467 ptr5a-13

This is a comparison of a cold heat range plug (left) versus a much hotter heat range plug (right). Notice how the distance between the ceramic and the spark plug shell on the hotter plug requires heat to travel a farther distance, which maintains more heat in the spark plug.Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. Available for use in Marine applications. Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time …make sure to check the head, I use an r43xls in my bbc this is a large diameter plug with a washer. the ts plug is for tapered seat and the x means extended. 69 chevelle. 408 bb M20 12bolt 3.31. 12.5 @ 107MPH. 72 El Camino all original.and material, plugs produced by various manufacturers do not have exactly the same heat range. Refer to recommendation section for specific engine applications Comp. Part# …When it comes to choosing the right air conditioner for your space, it’s important to consider the size of the room you want to cool. One useful tool that can help you determine th...ac delco heat range spark plug charts › Tech Tip: Spark Plug Heat Range Cross Reference. Tech Tip: Spark Plug Heat Range Cross Reference. 4.6 (186) · USD 4.98 · In stock. Description. Cross Reference Guide E3 Spark Plugs.Check Details Ac delco spark plug heat range chart. Guide to understanding spark plug heat rangesKozy heat slayton 42 reviews: r45ts spark plug heat range Set of 8 ac delco 41-993 iridium spark plugs 19256067Ac delco spark plug application guide.Ac Delco Spark Plug Chart Heat Range - Best Picture Of Chart Anyimage.Org. Ac delco heat range chart Battery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovan Spark plug heat plugs easy conversions made between. Looking for colder ac delco plugs.383 stroker spark plug. ... I was to by the builder of my 383 stoker motors to run a spark plug with a heat range of no more than a ac Delco 45 equivalent, for a Chevy 1972 5.7L 350 truck application. ... AC Delco nonclementure: Resistor plug("R"), 5/8" x 14mm, .460" reach, Tapered seat("T"), Extended tip("S")Motorcraft spark plug heat range chartBosch spark plugs cross reference chart Spark plug ac heat range plugs delco numbering system chart forum k10 equivalent modern rods hot forums corvetteforum replySpark plug heat chart range ngk look misfire sparkplug temp plugs issues operating blasterforum temperature f150online jun gif.

If the spark plug is too cold, it will be unable to properly self-clean by burning off carbon deposits. So choosing the right heat range is crucial for high performance engines. Usually, spark plug manufacturers recommend that the tips temperature remain around 500 – 850 celsius degrees. The heat range numbering …

Feb 15, 2019 ... AC DELCO plugs have more heat ranges, or at least they used to i.e. the Autolite 86 (I believe) is a replacement for each of these AC DELCO ...A spark plug’s heat range is the degree to which it disperses heat. Spark plugs with high heat dispersal are referred to as cold, while plugs with less heat-dissipating characteristics are known as hot. The structure of the spark plug affects the heat rating: Length of insulator nose. Surface area. Material of center electrode.The difference between hot and cold spark plugs lies in their ceramic insulation. Learn how hot and cold plugs are different in ignition systems in this article. Advertisement Car ...These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These …If you’re an automotive enthusiast or a do-it-yourself mechanic, you’re probably familiar with the importance of spark plugs in maintaining the performance of your vehicle. When it...The Autolite 3924 spark plug is a high-quality alternative to the RC12YC spark plug. It is designed for a wide range of applications, including automotive engines and small engines. The 3924 spark plug features a nickel-plated shell that provides superior corrosion resistance, ensuring a longer lifespan.Specialized Ac Delco Spark Plugs Heat Range Chart manufacturer in China, if you want to buy Ac Delco Spark Plugs Heat Range Chart, please contact us. Company Details LIXIN INDUSTRIAL & TRADE CO.,Limited [Zhejiang,China] Business Type: Manufacturer , Trade Company Main Markets: Worldwide , Africa , Asia , Europe Exporter: 61% - 70% Certs ...According to AC's chart, prefix is the letters before the numbers and suffix is the letters after the numbers. That would make the plugs (if AC), M=marine R=resistor …Acdelco spark plug heat range chartAc delco spark plug heat range chart Ac delco spark plug application guideHot rods. Ac delco spark plug heat range chartChart plugs ranges ngk denso benzina candele scelta cozz toyota yaris consumo 1kr 68cv aygo . Check Details. Check Details. cooler spark plugs - Third Generation F …

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Heat Range Value / Heat Range Seat Type Terminal Type Insulator Profile ACDELCO REGULAR SPARK PLUGS (COMMON CHARACTERISTICS - J TYPE GROUND ELECTRODE, RESISTOR STYLE EXCEPT FOR 42XLS & 43XLS WHICH ARE NON RESISTOR) 41602 10.24 50.50 19.05 3.38 0.89 6.35 1.52 2.79 M14x1.25 15.88 320 Flat …Spark plug design and manufacturing processes between manufacturers may vary in heat range. For correct spark plug recommendation, refer to the vehicle listing. This chart is to be used only as a guide. La conception et les me´thodes de fabrication des bougies varient d’un fabricant a` l’autre en ce qui concerne les plages de tempe´ratures.Looking for colder ac delco plugsAc delco spark plugs heat range chart Spark plugs, heat ranges and misconceptionsDelco ac chart plug plugs reach colder looking lt edit says. Champion sparkplug heat range chartAcdelco table Cant find ac plug heat range chart....Battery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovan.1965 autolite spark plug racing heat range chart book. Ac delco spark plug heat range chartChampion spark plugs heat range chart 1965 autolite spark plug racing heat range chart bookAutolite bosch ngk accel plugs iridium brisk denso yttrium resistor groove oe truckid w0133 authorized powersportsid n5 civic savana lgs. Here’s an insight into the compatibility between specific models of these two renowned brands. Specific Autolite Models Compatible with NGK: NGK’s BPR5ES is compatible with Autolite’s 3924. NGK’s BPR6ES can be cross-referenced with Autolite’s 3926. For NGK’s CR7HSA, the equivalent in Autolite is 454. We would like to show you a description here but the site won’t allow us.The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. A hotter heat range spark plug has an insulator design with a …ACDelco GM OE (Professional) Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement ideal for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. Some ACDelco GM Original Equipment parts may have ... ….

The Acdelco Heat Range Chart Is A Chart That Provides The Heat Rating In Addition To Other Characteristics Of The Acdelco Spark Plugs. Beagle sort by oldest first j jaguarmkix 17 posts · joined 2008 #2 · mar 29, 2010 they are of the same heat.Massachussetts. Feb 14, 2005. #3. i dont think so---! An R 45T would be one range hotter--the R 43T is one range COLDER than a R 44T plug---You probably wont notice much difference,its not that great of a jump up --if you are trying to avoid plug fouling from high oil consumption,or a rich mixture you could use non-foulers with the original ...If you’re a car owner, you may have come across the term “spark plug replacement chart” when it comes to maintaining your vehicle. A spark plug replacement chart is a useful tool t...Ac delco spark plugs for 4.3lAc delco spark plug chart heat range Ngk plugs delcoSpark plugs. Dayton auto and memorabilia museumAc delco spark plug application guide Amazon.com: acdelco 32g professional glow plug (pack of 1): automotiveAc delco spark plug application chart.Ac delco r44t conventional spark plug | repair guides Hot rods. Cant find AC plug heat range chart.... - Hot Rod Forum : Hotrodders. Delco ac chart plug plugs reach colder looking lt edit says Heat range plug chart ac spark cant find hotrodders forum hot reference size cross go Accel autolite ngk spark plug plugs brisk iridium denso …These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form and function. Black Onyx coating helps reduce corrosion. Copper core provides great heat transfer and helps maximize plug durability. Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires.Sep 14, 2009 ... 11:37. Go to channel · HOW TO SPOT FAKE AC DELCO IRIDIUM KNOCKOFF SPARKPLUGS. Bad Luck Garage•24K views · 4:26. Go to channel. Do Colder Spark ....The NGK application chart lists the types of spark plugs that different vehicles, generators or other pieces of gasoline-powered equipment use. The chart lists the model and stock ... Features & Benefits. Warranty: Standard : 12 Months or 12,000 Miles Whichever Occurs First. Download. ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression ... Ac delco heat range spark plug charts, 707773443538. Our Price: $10.99. Current Stock: 48. Quantity: Description. Additional Details. ACDelco 12621258 41-110 Iridium Spark Plug. ACDelco Professional Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today., It is a common misconception that spark plugs create heat. 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. 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 ..., ACDelco RAPIDFIRE platinum spark plugs fit engines that require conventional or platinum plugs—offering quicker throttle response, smoother idle, better corrosion protection, and greater longevity when compared to conventional plugs. ... Manufacturer Heat Range. 12 (4) 8 (2) 1 (1) 14 (1) Get Results; Electrode Core Material. Copper (12 ..., Which plug is hotter? AC Delco 41-627 or 41-629. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications. The numeric code does not in any way correspond to the heat range of the spark plug., ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement ideal for many vehicles on the road today. Black Onyx coating helps reduce corrosion. Copper core provides great heat transfer and helps maximize plug durability. Ribbed suppressor seal extends resistance and ..., Weight (lb) 0.48. Width (IN) 3.5. Professional; Conventional; Pre-Set Gap: 0.040". ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance. Features & Benefits: A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability ... , Aug 8, 2023 · Motorcraft spark plug heat range chartBosch spark plugs cross reference chart Spark plug ac heat range plugs delco numbering system chart forum k10 equivalent modern rods hot forums corvetteforum replySpark plug heat chart range ngk look misfire sparkplug temp plugs issues operating blasterforum temperature f150online jun gif. , Which plug is hotter? AC Delco 41-627 or 41-629. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications. The numeric code does not in any way correspond to the heat range of the spark plug., Battery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovanPlug acdelco spark iridium ac chart delco plugs 41 heat pro each gm amazon professional glow parts warranty read comparison Spark plug ac heat range plugs delco numbering system forum chart equivalent k10 modern rods hot forums corvetteforum replySpark …, Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time again. Patented, one-piece insulator design - withstands temperature pressure and vibration. The copper core electrode - helps transfer heat, which is important for today's smaller hotter-running engines., Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time again. Patented, one-piece insulator design - withstands temperature pressure and vibration. The copper core electrode - helps transfer heat, which is important for today's smaller hotter-running engines., ACDelco Gold (Professional) Rapidfire Spark Plugs are designed for everyday use and are a high-quality replacement ideal for many vehicles on the road today. These spark plugs have high-quality suppressors that help prevent misfiring, an optimized plug to boot seal, and a pure copper core for great durability. FEATURES & BENEFITS., Plugs punctual Battery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovan Ford motorcraft spark plug heat range chart. Spark Plug Heat Range Explained., Looking for colder ac delco plugsRocket047.jpg photo by dog427435 Ac delco plug heat range chartDelco spark plug iridium. Motorcraft spark plug heat range chartAc delco cross reference chart Delco acdelcoAc delco spark plug chart., Ac delco spark plug torque chartSpark ngk bosch r10 bougies asianthomas renvois Ac delco spark plug chart heat rangeBriggs stratton hotter davidson suggestion thirdgen forums 71z innovations2019 yarta. ... Ac Delco Spark Plug Chart Heat Range - Best Picture Of Chart Anyimage.Org. Check Details. Delco spark plug question - Hot …, A single car has around 30,000 parts. Most drivers don’t know the name of all of them; just the major ones yet motorists generally know the name of one of the car’s smallest parts ..., ACDelco: Spark Plug Thread Size: 18 mm: Seat Type: Gasket: Electrode Core Material: Copper: Manufacturer Part Number: C87: Spark Plug Reach: 12.7 mm: VMRS Code: 033003005: Spark Plug Seat Type: Flat: Spark Plug Hex Size: 13/16 in. Hex Size: 3/4 in: Spark Plug Heat Range: NGK7, The Acdelco Heat Range Chart Is A Chart That Provides The Heat Rating In Addition To Other Characteristics Of The Acdelco Spark Plugs. Beagle sort by oldest first j jaguarmkix 17 posts · joined 2008 #2 · mar 29, 2010 they are of the same heat., ACDelco's RAPIDFIRE Performance Platinum Spark Plugs offer longer life and improved efficiency over time as compared to conventional spark plugs. Available for most vehicle makes and models, and several marine applications, the RAPIDFIRE Platinum Spark Plug design features: Ribless insulator that may improve the plug-to-boot seal., The '69 and '70 Chevy Service Manuals listed for standard plugs mostly 43 range plugs for high perf engines and 44 or 45 range for std perf engines, with an occasional 46 for a 6 cyl. Examples are R43N for a '69 L-78 and R43T for a '70 LS-6. They also listed a cold plug for each engine which was generally one number lower., Mar 31, 2006 · The '69 and '70 Chevy Service Manuals listed for standard plugs mostly 43 range plugs for high perf engines and 44 or 45 range for std perf engines, with an occasional 46 for a 6 cyl. Examples are R43N for a '69 L-78 and R43T for a '70 LS-6. They also listed a cold plug for each engine which was generally one number lower. , Feb 17, 2004 · Feb 23, 2004. #13. Actually, Most, if not all of the new style AC-Delco Rapidfire plugs are platinum. AC-Delco phased out the old style copper core Rapidfire plugs that had the serated center electrode. I'm running the new platinum Rapidfire in my 98 Chevy truck with the 5.7L and they seem to work very good. , Ac Delco Spark Plug Application Guide | Free Nude Porn Photos. Plug reference chart spark cross range heat accel champion academia pdf edu Plug acdelco spark iridium ac chart delco plugs 41 heat professional pro gm amazon each set warranty additional parts read [infographic] spark plug heat range chart, Do you need to convert the heat range of your spark plugs? NGK.com has a handy heat range conversion chart that can help you find the right NGK product for your engine. Whether you need standard, racing, or iridium spark plugs, NGK.com has them all. Visit NGK.com today and get the best deals on hard to find NGK products. , When I put my 350 together 2 yrs ago, I used AC R44TS plugs. While chasing a miss last yr I replaced them with AC R45T's and although the engine ran ok, I felt the engine liked the R44TS's better. A week ago I decided to go back to the R44's and mistakenly bought T's instead of TS's., Weight (lb) 0.48. Width (IN) 3.5. Professional; Conventional; Pre-Set Gap: 0.040". ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance. Features & Benefits: A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability ..., Sep 14, 2009 ... 11:37. Go to channel · HOW TO SPOT FAKE AC DELCO IRIDIUM KNOCKOFF SPARKPLUGS. Bad Luck Garage•24K views · 4:26. Go to channel. Do Colder Spark ...., ACDelco GM Original Equipment Iridium Spark Plug. Part #: AC 41114. Line: ACDelco. or 4 interest-free payments of $2.62 with. Qty: Add to Cart., These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form and function. Black Onyx coating helps reduce corrosion. Copper core provides great heat transfer and helps maximize plug durability. Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires., Oct 25, 2020 ... I have AC 45 plugs ... 136656d1176322684-cooler-spark-plugs-delco.jpg ... I was simply referring to the plural of plugs with heat range 45 which ..., Ac delco spark plug heat range chartAutolite spark plug heat range chart tabla de … / autolite-spark-plug Ac delco plug heat range chartAutolite pdf4pro. Delco ac chart plug plugs reach colder looking lt edit saysRadiator coolant hose molded upper acdelco pro 26111x Spark plug temp chartAc delco 41-962 double platinum …, Ac delco spark plug heat range chartBattery-voyager ii acdelco advantage acdm27dc fits 99-03 vw eurovan Delco ac chart plug plugs reach colder looking lt edit saysBosch spark plugs cross reference chart., Do you need to convert the heat range of your spark plugs? NGK.com has a handy heat range conversion chart that can help you find the right NGK product for your engine. Whether you need standard, racing, or iridium spark plugs, NGK.com has them all. Visit NGK.com today and get the best deals on hard to find NGK products.