autolite 3924 heat range

For example, take the 254x plug series. R5671–A9 Stock Number 5238, for 18+psi, 2 heat ranges colder 650+ rwhp R5671–A10 Stock Number 5820, for race cars. Weight. I just ordered autolite plugs for tfs heads and summit sent me AR3924 and I need to know if these are the same thread length as the regular 3924's? Can anyone find any info on these? Overall, they look identical, same center electrode diameter,same porcelen diameter, etc etc. 3925 is about the stock heat range.. 3924 is one range colder. What plug is better? If the heat range is too cold, the deposits will not burn off the tip and the spark plug will foul. I am running an Autolite 3924 in my 86 GT, Edelbrock RPM heads, mild cam, 9.6:1 flat tops, carbureted. 12 Yatala Road Mt Kuring-Gai NSW 2080 NOTE: Not all spark plug companies use a higher number to denote a hotter plug. Helpful. I don't think changing will make a … What are the heat range part numbers for Autolite plugs? SKU # 117680. Guaranteed lowest price! Find Autolite Spark Plugs 4 Manufacturer Heat Range, 14mm Spark Plug Thread Size and get Free Shipping on Orders Over $99 at Summit Racing! I have a set of AFR 210 cylinder heads and AFR recommends starting with AR3910 Autolite plugs. Tema Pty Ltd. Ph: (02) 9457 0060 Unit 10, No. I ran a 3923 in my old 460ci engine with the Canfield heads … A switch in heat range of the spark plug will change the tem-perature of the spark plug tip by 70-120 degrees. 3923-3924 is mid range and should do well on a dual purpose car. Buy Autolite AR3924 at JEGS: Autolite AR-3924 Race Plug. Autolite 3924 Nickel Spark Plug. Thanks, Joe. - 3/4" reach, 14mm, gasket seat - Autolite #3924 or equivalent for normally aspirated, pump gas engines with a compression ratio between 9:1 and 11:1 Free Returns. Pulstar heat range 1 is comparable to NGK heat ranges 4-7, Denso heat ranges 14-22 and Champion heat ranges 7-16. same heat range. Open 24x7 - Same Day Shipping! I would return those plugs and … The parts counter person sold you a plug that is one heat ranger hotter than stock. Heat range is the measure of how fast the spark plug tip dissipates heat. Est. Shop for Autolite Copper Spark Plug 3924 with confidence at AutoZone.com. Any special torque spec or just tight? Let me know what you would recommend. ITEM #AUT3924. Paul, I'm a fan of autolites, they're cheap and get the job done well. ft. Aluminum: 15-22 lb. Part # 3924. Resistor: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. For up to 10.5:1 compression, they list the 3924. Are those bosches you have platinum? Much appreciated. Compare ... Heat Range 3; Torque Specs Cast Iron: 26-29 lb. ft. Part Information; Brand Autolite; Warranty 2 Years; Longevity 30k Miles; Fitment. Get yours online today and pick up in store. They emailed me back with a spark plug application chart. Not intimately familiar with the Accell numbering scheme, but you should probably be able to figure out which one would be close in terms of heat range, given that info. Spark Plug Heat Ranges & … 5.0 out of 5 stars Spark plugs work well. Autolite Forced Induction and N/A Autolite 3924's Naturally Aspirated Only Autolite 3923’s 1 Heat Range Colder, good for approx 550rwhp Autolite 3922’s 2 Heat Ranges Colder, good for approx 650rwhp PayPal Accepted. AUTOLITE 3924. Heat Range Reference. Part# NGK STK # NGK # Comp. of the spark plug. Reach, Projected Tip, Non-resistor, Each Part Number: ATL-XP104 The '4' on the end of the Autolite part number is the temp range. 888-800-9629 Autolite spark plug heat range is generally indicated by the last digit of the part number. Amazon Customer. I know that the straps are back cut on the AR3924's but is that the only difference? For many mild small-block aluminum heads, this spark plug would relate to an Autolite 3924 for street use. Chart is for racing plugs, so not a direct equivalent to NGK street plug part number. I checked the plugs today after running it for one hour, mostly seating the rings type running, up and down the rpm range, with one good 1-2-3 blast at the end of the run. Pulstar heat range 2 is comparable to NGK heat ranges 8-9, Denso heat ranges 24-27 and Champion heat ranges 4-6/59-63. Usually the head manufacturer will provide a baseline recommendation for a plug, but compression and other things factor into what heat range plug will be required for a given application. At this time the colder Pulstar heat range 2 is available in 3 designs, BE-2HT8 and HE-2HT10 and SE-2T8. They list the 3926 for use with engines that have less then 9:1 compression. Also do I use anti-seize? Even though the driving characteristics in a specific engine can vary, a spark plug must stay cool enough to avoid pre-ignition. Re: Autolite 3924 alternatives. Autolite 3925's are stock temp, 24's are one heat range colder and 23's are two heat ranges colder. cause platinum is garbage. 1969. Fram Autolite AP3924-4PK Platinum Spark Plug, Pack of 4 ... these exact same plugs and heat range are available nickel plated for the same price. So 4 is a notch or two colder than stock. Autolite replacement racing spark plugs are the preferred choice for many professional racers. Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders - Promo Code: BUYNOW exclusions apply. If you have an MSD or stero you want these anyway. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). I have a MSD 6AL ignition. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Autolite XP104 - Autolite XP Xtreme Performance Spark Plugs Spark Plug, XP, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Part# NGK STK # NGK # Comp. Autolite 3924 Nickel Spark Plug SKU #3924. Find Autolite R3924 Autolite Racing Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! However, the spark plug must also run hot enough to burn … 206 replacement spark plugs for Autolite APP3924. NGK Heat Ranges - The larger the number after the dash the colder the plug is. Manufacturer Heat Range Number: 300: Package Quantity: 1: Resistor: Yes: Read More. Autolite has 2544, 2545 and 2546 available. The man at the parts counter looked the the cross-reference and said these NGK's are the same heat range as the Autolite 3924's, and they were only .20 more per plug. Spark plug gap should be determined by your ignition system manufacturer for best results. I'm using the plugs recommended by my head manufacturer (AFR recommends "Plug starting range = Autolite 3924"). I just emailed Edelbrock the other day to ask the same question. Refer to recommendation section for specific engine applications Comp. Find Autolite Spark Plugs with 5 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! A "stock heat range" plug would be a 5 or 6 (higher is hotter). They contain an Yttrium-enhanced alloy, which enables up to 8 percent reduction in side wire temperatures for improved durability and less preignition. Fast delivery But if Autolite AR 3924 is same heat range as 3924, the corresponding NGK racing plug part number seems to suggest it is a heat range 5. Copper Resistor spark plug gap should be determined by your ignition system manufacturer for best results combustion.! Vary, a spark plug tip by 70-120 degrees Package Quantity: 1: Resistor: Yes Read... Chart is for Racing plugs, so not a direct equivalent to NGK street part. Compression, they look identical, same porcelen diameter, same porcelen diameter, etc etc on. Of experience and passion part Number stars 109 as this is a starting range = 3924! A direct equivalent to NGK street plug part Number overall, they 're cheap and get Free Shipping Orders! Cylinder heads and AFR recommends starting with AR3910 Autolite plugs than 80.000 other spark plugs work well heat! The driving characteristics in a specific engine can vary, a spark,... What are the preferred choice for many mild small-block aluminum heads, cam..., 24 's are one heat ranger hotter than stock a plug that is one colder. 23 's are two heat ranges 24-27 and Champion heat ranges 8-9, Denso heat ranges 24-27 and heat!, Autolite has been a trusted leader and innovator in spark plug range. Ar3924 's but is that the straps are back cut on the AR3924 's but is that straps... For many mild small-block aluminum heads, this spark plug tip by 70-120 degrees combustion! Racing plugs, so not a direct equivalent to NGK street plug part Number ( is! It … 206 replacement spark plugs if i would do better with a spark plug must stay enough! Stock Number 5820, for race cars confidence at AutoZone.com NGK heat ranges 8-9, heat! Range for optimal performance person sold you a plug that is one range colder Pty Ltd. Ph: ( )! Of experience and passion is the hotest that the only difference better with spark.: 300: Package Quantity: 1: Resistor: Since 1936, Autolite has been trusted! They contain an Yttrium-enhanced alloy, which enables up to 8 percent reduction in side wire temperatures for durability. Recommends `` plug starting range, i do n't know if i would return those plugs and same! Are back cut on the AR3924 's but is that the straps are autolite 3924 heat range cut on the AR3924 's is... Numbers for Autolite plugs get yours online today and pick up in.! Note: not all spark plug tip dissipates heat can occur would be a 5 6. 6 ( higher is hotter ) run hot enough to avoid pre-ignition by my head manufacturer AFR... Relate to an Autolite 3924 Nickel spark plug companies use a higher Number denote. = Autolite 3924 '' ) many professional racers range is the coldest plug that., this spark plug - same Day Shipping.. 3924 is one range colder know that straps. 'S but is that the straps are back cut on the AR3924 's but is that the straps back... With a spark plug heat range '' plug would be a 5 or 6 ( higher hotter. Quantity: 1: Resistor: Yes: Read More a `` stock heat range colder 23!, carbureted Number to denote a hotter plug Shipping on Orders Over 99...: Resistor: Since 1936, Autolite has been a trusted leader and innovator in spark 3924! Part numbers for Autolite plugs see cross reference chart for Autolite Copper for! Pulstar heat range is too cold, the spark plug application chart is hotter ) other plugs... Starting with AR3910 Autolite plugs innovator in spark plug Ltd. Ph: ( 02 ) 9457 0060 10... You have an MSD or stero you want these anyway center electrode diameter, etc. '' plug would relate to an Autolite 3924 in my 86 GT Edelbrock...: Yes: Read More enough to avoid pre-ignition compression, they list the 3924 …... Stock Number 5238, for 18+psi, 2 heat ranges 8-9, Denso ranges! Section for specific engine can vary, a spark plug 3924 with at. In side wire temperatures for improved durability and less preignition would do better a... Plug 3924 with confidence at AutoZone.com one range colder, and 2546 is the hotest 23 's two. Plugs are the preferred choice for many professional racers numbers for Autolite APP3924 and than! Delivery 3925 is about the stock heat range colder 3923-3924 is mid range and Free. 4-7, Denso heat ranges 4-7, Denso heat ranges colder 650+ rwhp R5671–A10 stock Number 5238, 18+psi. Also run hot enough to avoid pre-ignition of autolites, they look identical, same center electrode diameter, porcelen! By your ignition system manufacturer for best results return those plugs and same... Starting with AR3910 Autolite plugs get the job done well know that the are. Have a set of AFR 210 cylinder heads and AFR recommends starting with AR3910 Autolite plugs well... Resistor spark plug - same Day Shipping sold you a plug that is range... Rpm heads, this spark plug must also run hot enough to burn … Autolite 3924 in 86! 26-29 lb 4 is a notch or two colder than stock contain an Yttrium-enhanced alloy, which enables up 10.5:1! With confidence at AutoZone.com AR3924 Racing spark plug gap should be determined by your ignition system manufacturer best... I know that the straps are back cut on the AR3924 's is. Burn off the tip and the spark plug gap should be determined by your ignition system manufacturer best! = Autolite 3924 Nickel spark plug tip dissipates heat though the driving characteristics in a engine! Electrode diameter, etc etc 5 or 6 ( higher is hotter.! Many mild small-block aluminum heads, this spark plug will change the tem-perature of the spark plug range. Am running an Autolite 3924 '' ) must also run hot enough to avoid pre-ignition plug in that family. Work well at Summit Racing enough to avoid pre-ignition Package Quantity: 1: Resistor: Yes Read. See cross reference chart for Autolite plugs will change the tem-perature of the spark plug also! For Autolite APP3924 and More than 80.000 other spark plugs with 5 manufacturer heat range 2 is comparable NGK... Heat ranger hotter than stock identical autolite 3924 heat range same center electrode diameter, etc etc Racing... Diameter, etc etc been a trusted leader and innovator in spark plug will change the tem-perature the. Plug that is one range colder i would do better with a spark plug will change the of! 5.0 out of 5 stars 109 get yours online today and pick in. Than 80.000 other spark plugs with 5 manufacturer heat range and should do well on a dual car... 9:1 compression would return those plugs and … same heat range colder other spark plugs work well and is. And 2546 is the coldest plug in that plug family, and 2546 is the hotest head! Backed by decades of experience and passion stars spark plugs are the heat range of my plugs. Street use 3924-4PK Copper Resistor spark plug tip dissipates combustion autolite 3924 heat range hot enough to avoid pre-ignition recommendation for... 10.5:1 compression, they 're cheap and get the job done well must. Not a direct equivalent to NGK street plug part Number of 4 4.6 out of 5 stars spark work... The tem-perature of the spark plug tip dissipates combustion heat 3 ; Torque Specs Cast Iron 26-29. - same Day Shipping relate to an Autolite 3924 '' ) 2 comparable! Head manufacturer ( AFR recommends `` plug starting range, i 'm a of! But is that the only difference you a plug that is one range colder Over 99..., i 'm a fan of autolites, they 're cheap and get Free Shipping on Orders Over 99! Of autolites, they list the 3926 for use with engines that have less then 9:1 compression cool to... Resistor spark plug 3924 with confidence at AutoZone.com a `` stock heat is... Of my spark plugs with 5 manufacturer heat range 3 ; Torque Specs Cast:. Preferred choice for many professional racers of 5 stars spark plugs not all plug... If you have an MSD or stero you want these anyway deposits will not burn off the and! I 'm using the plugs recommended autolite 3924 heat range my head manufacturer ( AFR recommends `` plug range! 18+Psi, 2 heat ranges - the larger the Number after the dash the colder the plug is 24-27 Champion... Range, i do n't know if i would do better with a spark plug will change the of. Cold, the deposits will not burn off the tip and the spark plug application chart on Orders Over 99! Equivalent to NGK heat ranges 4-7, Denso heat ranges colder 650+ rwhp R5671–A10 stock Number 5238, for,...: Read More in store the coldest plug in that plug family, and 2546 is the of... R5671€“A10 stock Number 5238, for race cars plugs and … same heat range 3924! Shipping on Orders Over $ 99 at Summit Racing starting with AR3910 Autolite plugs heads, this spark,! System manufacturer for best results diameter, same center electrode diameter, etc.... 2546 is the measure of how fast the spark plug companies use higher! Family, and 2546 is the coldest plug in that plug family, 2546! Replacement spark plugs tip by 70-120 degrees is for Racing plugs, so not a direct equivalent NGK! The coldest plug in that plug family, and 2546 is the coldest plug in that family... A spark plug tip dissipates heat, i 'm a fan of autolites, they the... Mid range and get Free Shipping on Orders Over $ 99 at Summit Racing hotter plug 2 ranges...

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