R43ts vs r45ts

R43ts vs r45ts. USD 29. Jul 18, 2012. 00. USD 24. 5-2hp. 25:1 to 11. Nothing super exotic needed here IMO,just stay away from the TSX extended gap plugs and wider gaps (. If the R43TSs were fouling, the R45TS may be just what you need. Points ignition: 0. You say that the AC Delco R45TS is a hotter plug than the AC Delco R44TS, I assume that means the AC Delco R44TS is also hotter than the AC Delco R43TS which is what most people would receive when asking for a set of plugs for a 350. NGK V-Power Set of 8 Spark Plugs Nickel 6630 for Buick Ford Pontiac GMC. AC Delco R45TS Spark Plug Set of 8 for Chevy GMC Buick Cadillac Pontiac Olds. (*8) Purchase via Mazda. But the R43TS & R44TS are a little cooler plugs that are also commonly used for street perf sc\bc/bbc cars. Sold by: WesNew Auto Parts. 1965 Malibu SS coupe 327ci, 4 speed, 3. With modern fuels the 43s may be very cold unless you are on a circuit track at constant high RPMs. AC Delco Conventional Spark Plug. Aug 19, 2015 · Amazon. 40 r43xls e3. Patented, one-piece insulator design - withstands temperature pressure and vibration. Please consider creating a new thread. Apr 3, 2014 · I've used those plugs a lot in various Chevy engines with success. E. 54 r44ltsm6 e3. USD 28. Thanked 213 Times in 178 Posts. If you need a plug with a gasket seat let me know because the numbers will be totally different. 055". 3021 posts · Joined 2006. Jun 16, 2020 · 3 years ago, I did the plugs on this truck and I found a whole set of em in the shed. com: ACDelco R45TS Professional Conventional Spark Plug (8 Pack) $2307. The spark plugs from Champion have tin tac and ultra seal covering which makes the plugs super resistant to corrosion 546 &urvvuhihuhqfhvduhsurylghgdvd*8,'(21/< 'xhwrgliihuhqfhvlqghvljq pdwhuldov surgxfwvsurgxfhge\ydulrxvpiuvpd\kdyhgliihuhqwvshfl¿fdwlrqv 3ohdvhuhihuwrvshfl¿f Oct 19, 2013 · I'd probably run an R43TS or R45TS depending on which specific 6X heads we're talking about here. I use Autolite in my 1969 Z/28. . They came stock in the merc mag motors. 61. If go to auto store that have them on a rack you will see the one has the electro sticking out more( hotter plug ), Jul 24, 2009 · New R43TS AC Delco spark plugs. May 7, 2008 · Originally Posted by paul67. But the diff between the long reach and Report an issue with this product. 52 r44t e3. Usually R45TS works fine. 42 r44tsx e3. Product Details. t is for tappered by the way and I may have the s and x backwards its been Feb 9, 2008 · It is not recommended that higher heat range plugs (example R43CTS to R44CTS) be substituted to try to correct a driveability complaint as installation of higher heat range plugs can cause engine damage. May 6, 2007 · sparkplugs - R45TS vs R43TS The 1967 - 1972 Chevrolet & GMC Pickups Message Board sparkplugs - R45TS vs R43TS - The 1947 - Present Chevrolet & GMC Truck Message Board Network Register or Log In To remove these advertisements. This helps with better conductivity and keeps them intact for longer. Originally Posted by 7T1vette. The prefix “41” stands for the manufacturer’s product line (e. 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. (R44T) On the web site it says that for the code H 305 either the R45TS or the CR43TS should be used in a r43ts e3. 17. USD 12. I used R43TS with my stock SBC HEI, and gap them at about . Unlock FREE Shipping when you order $99+ and choose Ship It! ACDelco Professional R45TSX Conventional Spark Plug (Pack of 1) USD 4. (25 or 26). 3=heat range. 075 from 0. Oct 23, 2012 · R44TX or R44TS. R=resistor. 54 r44lts6 e3. (1) This comparison chart does not guarantee capability with any vehicle. Both spark plugs have originated from the same inventor, they are similar in certain functions. 2541 posts · Joined 2006. I was at the parts store picking up supplies and the computer says AC R44TX gaped 0. R44 and R43 are common recommended plugs for the SBC; however, many older parts books also recommend a very wide gap for HEI. Some of these may no longer be readily available or have been superseded by GM and can be used to cross-reference to another brand such as Autolite, Bosch, NGK, Champion, etc. 53 r44lts e3. Engine Size. It is the car version which is fine. $2649. 29. Oct 17, 2007 · To Spark Plugs R43 or R45. 46 r44xls6 e3. 63. 035". The threaded part is much shorter than the original. Copper vs Iridium Spark Plugs: What Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . The old ones looked pretty good and had an even dark brown color. #3 · Jun 8, 2001. Re: ACDelco R45T vs. Use the 43's and 44's at shows. 44. Allows for smaller, more efficient electrode designed for improved cold starting and quicker acceleration. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality cr43ts vs r43ts. 4. ACDelco D336X Professional Ignition Distributor Cap. Part No. With the original plugs, now gapped at 063, hp increased to 186. Nov 21, 2004 · The early 350s take R44 or R43, then starting in 1971 it's R44T or R44ts or R45Ts. 65. Oct 23, 2022 · What is difference between ac delco r43ts and cr43ts? The CR plugs are commercial grade and have a thicker electrode and ground. These also have heat ranges similar to the non S plug. (8) Write a Review. The 3991492 over the counter version offered from 1976 to 1978 are angle plug heads and use AC R43TS (tapered seat) spark plugs or Accel 276S shorty plugs, if you have headers. Re: R46TS vs R45TS 06-18-05 12:10 PM - Post# 721123 In response to Barry you may try closing up the gap a little to 35 and going from there, a high output coil would be a relatively inexpensive way of getting a litte more fire to those plugs as well and of course I'm assuming the usual tune up items are in tip top shape (cap, points, condensor, rotor, WIRES) Apr 12, 2018 · With surface gap plugs, 172. Bret P. 4=14mm thread. Well here is a comparison, the left plug is the R44T and the right plug is the R44TS. Today's Price. Conventional Spark Plug. Jan 1, 2006 · Sold by: ALL CAR CARE. #3731. AC Delco Spark Plugs. squirrel, Nov 21, 2004. In ACs the higher the last digit the hotter the plug. The auto store didnt have R43TS AC Delco plugs and recommended R45TS AC Delco plugs instead (gapped to 0. Correct. Jul 8, 2017 · The 3991492 heads came in two versions. Give a man a rescued dog for the health of both their souls. Sep 18, 2023 · ACDelco Vs Champion: Major Differences. the standerd r45t is a shorter plug the s stands for extended tip and X stands for extended plug or vice versa dont rember. 1. The reach on the 45s is much better. Champion Copper Plus 18 Spark Plug RV15YC4. Available for use in Marine applications. 99. 13. Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires. 46 r44xlse Jul 29, 2008 · But back your question,The 45TS plugs your currently running is a very std FARILY HOT AC extended tip plug for SBC & BBC applications though most run the resistor series of that plug which is R45TS. 40 r44xls e3. mdchevelleclub. Advanced search. 08. Save Share. I see there is a R43TS6 Looked all over to find out what the 6 means to determine the difference between these plugs but can't find that code description. +. r45t no s. you would be better of with an autolite 24. I just pulled the NGK plugs and replaced them with Delco R45TS plugs because the NGK plugs have a 1/8" or so shorter reach and barely make it into the combustion chamber. With same stock plugs, same 045 gap, hp increased to 180. Select a vehicle to confirm true fit ? Select a Store to view Availability. That would make your recommended plugs a colder marine type plug designed for a boat engine. Maryland Chevelle Club #017. long-lasting performance, time and time again. Mar 8, 2011 · Thanks: 3. $254. 38. The T means tapered seat, the S means projected nose. A lot of the champion plugs I have seen are for a longer reach. That or the Autolite equivalent. g. Jan 1, 2006 · Product Description. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. 035 for regular ignition, or . The MR43T is for sure still made. #3. With three specialty plugs, hp dropped 1. Autolite APP26 Double Platinum Automotive Replacement Spark Plugs (4 Pack) USD 16. New NGK Standard Spark Plug BPR6FS, 2623 Set of 4 Spark Plugs. Jun 4, 2011 · Afterthough is you could also try R45T plug of same heat range you were currently running but without the extended tip into combustion chamber the R45TS plug has for less likelyhood of having issues caused by plug ground strap overheating though that may not be an issue at all. 69 RS 355 Tremec 5-Speed 4. 060 5613812. USD 36. 15. Enhances the ignition of the fuel. Back in the day, I read about a San Francisco Ferrari dealer who would put them in the V12's so they could idle in city traffic, then wind out to 150 in the country. AC DELCO R45TSX SPARK PLUG ASM. Home; Service; About; Contacts; FAQ ACDelco Copper Spark Plug R43TS Shop All ACDelco. 2 posts · Joined 2001. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. 060". The extended tip is suppose to burn cleaner and give a tiny more power on the dyno over the r43t. These are AC numbers. Denso (5330) ITF16 Iridium Power Spark Plug, (Pack of 1) USD 8. 5. 5/4 drop Frame out residue has been started Start typing the part number. The Oxygen Sensor Cross References are for general reference only. I hope this helps. 07 & FREE Shipping. www. Ok got a fun little story for ya, then a question for 305 owners. Improves cold starting performance. 305. May 2017 ROTM Winner - Thank you! 'Other Stuff of mine' CUBS - 2016 World Series Champions. 66. May 6, 2007 · Re: sparkplugs - R45TS vs R43TS The r45's are a hotter plug han the r43 68 Chevy Short Fleetside LSX Swap Under Way 3. 34066 posts · Joined 2000. S. If you want a hotter plug, run the R44TS, or R45TS. ACDelco GM Original Equipment R45TS Conventional Spark Plug. The plugs will get fouled out way before the plugs wear out. 40. Here’s a quick look at ACDelco and Autolite, the best spark plug brands for Chevy 454 in my opinion: ACDelco R4xTS series. Maybe the TPI runs leaner and favors a cooler plug. USD 6. In a FI motor, the plugs never get dirty, my Mustang had the original plugs still after 110,000 miles they were clean, but the gap was up to 0. SCOTT. 42 r44ts8 e3. 20. 59. May 14, 2011 · the only real difference is heat range. What gives, should I go with this plug & gap? R44TS is desigend for . It prevents combustion leaks from occurring. 42 r44ts6 e3. #2 · Jun 9, 2014. 46 r44xls5 e3. So when I got the truck it had ACDelco CR43TS spark plugs in it. 54 r44ntse e3. 46. S/T 2. Since they have parted their manufacturers, the plugs have some major technical differences. 77. R44's are 1 step hotter. Denso (5331) ITF20 Iridium Power Spark Plug, (Pack of 1) USD 10. Guys, I hope you can forgive this novice question. it's all about the Cylinder Head and if any part of the plug will hit the piston. T=tapered seat shell design. 54 r44ltsm e3. This item: ACDelco R43TS Professional Conventional Spark Plug, Pack of 1. Jun 7, 2001 · CVW. Feb 26, 2020 · 75gmck25. _____ Apr 28, 2006 · It provides the best benefits of a high enuf heat range not to foul in around town driving, yet teh projected core gets a little more cooling under hard acceleartion, which ordinarily heats up a plug. The length of the plug 'body' is different, but they are essentially the same from the tapered portion of the body down to the firing tip. Denso (5330) ITF16 Spark Plugs, Pack of 4. 054 stock. I dont remember what all I learned, but i didnt want to dump money on plugs and take a trip to the store if what i had will work. Split Fire plugs achieved 184 hp but required 067 gaps. Are they any good? They're as good as spark plugs get but they're mighty cold spark plugs for your car. The "R" stands for resister the 46 indicates heat range and "ts" is for tapered Jun 3, 2011 · Autolite 26 =r45ts. VIDEO. ACDelco Professional R43TS6 Conventional Spark Plug (Pack of 1) USD 2. also you need to consider heat range of the plug. ACCEL 0574S-4 Shorty Copper Core Spark Plug, (Pack of 4) USD 45. ACDelco Professional R43TS6 Conventional Spark Plug (Pack of 1) Visit the ACDelco Store. 52 r44sx e3. It's been some time since I have did a older plug change. CROSS REFERENCE GUIDE. Jun 15, 2007 · They are both one step lower in heat range than the R45TS which should work with 10. What is plug gap 71 Chevy 350 engine? Spark Plug (ACDelco R45TS) [Gap @ . 35. Jan 21, 2011 · The standard AC Delco R43TS plug is just as short as the Accel plug, last longer, and much cheaper. #1. ACDelco Gold R44T Conventional Spark Plug. , 41 = spark plug) Numbers after the prefix indicate the type of spark plug and also the specific application: 100 – 199 = Iridium. I went online and it said a r45ts is likely what my SBC takes, but I had r46ts. Accel 8198 Spark Plugs - U-Groove Spark Plug; Header Plug; Resistor; Shorty Plug For Headers; 8 pc. #2 · Sep 2, 2008. 42 r43tsx e3. Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . USD 15. Any use of this cross reference is done at the installers risk. 460" reach Autolite Platinum AP26 Automotive Replacement Spark Plug (1 Pack) USD 8. #1 · Jul 17, 2008. ACDelco R44TS Spark Plugs 19157994 (Set of 8) USD 27. This application listing is to be used as a guide only. C20. SKU # 107029. Denso (5331) ITF20 Spark Plugs, Pack of 4. 1984. For example, the R45TS spark plug shown is: · R - Resistor · 4 - 14 mm Thread · 5 - Heat Range (range 1-5 start with a 3) · T - Taper Seat (No T for a gasketed plug) · XL - Extra Long Reach, 3/4" fully threaded · S - Extended Tip Plug Identification Table Prefix: · B - Series Gap · C - Commercial · CS - Chain Saw Mar 30, 2005 · I just don't want to take chances on detonation on a motor built specifically for nitrous/street use. Increases the efficiency of the vehicle’s fuel consumption. Special Offer Available. 5 hp. Apr 29, 2002 · Platinum plugs In my opinion are not really worth it in a High performance carbed motor. 8. progress has little to do with speed, but lots to do with direction. Listed in the ACDelco catalog for 1984 C20 - 305 LG6 says CR43TS plugs or R45TS no notes about when you should use which plugs. 045 inches) which run a little Feb 2, 2010 · According to AC's chart, prefix is the letters before the numbers and suffix is the letters after the numbers. 708" All of these plugs have 14MM threads with tapered seats. 035" gap with breaker point ign so why would you want to run HEI ign with those plugs? You motor with Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . $4. Get Fast, Free Shipping with Amazon Prime. MODEL ENGINE VIN CODE SPARK PLUG GAP P/N. Denso (5330) ITF16 Iridium Power Spark Plug, (Pack of 1) USD 10. Get Fast, Free Shipping with Amazon Prime FREE Returns. ACDelco Professional R43TS Conventional Spark Plug (Pack of 1) USD 3. 44s were recommended back then but were prone to fouling for everyday use. Ive been running r46ts since then, and im about to These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. If you want the stainless base plug then the number is mr43ts. There was a TSB issued back in the mid 80s addressing the issue. then you will also use extra gas, when the computer see's that the engine is cool it richen's up the fuel mixture until full operating temp is achieved, and with the cooler thermo. Cons. ACDelco R45TSX 19157991 Professional Conventional Spark Plug (Pack of 2) USD 8. Anybody know and is it better to run this plug? Jun 9, 2014 · 22557 posts · Joined 2007. 95. Bruce. 100% copper cores. Free Shipping on Orders $99+. #3 · Feb 27, 2020. Driving a musclecar, "PRICELESS" :yes: The following matrix of spark plugs used are for AC Delco as installed. A. Truck Model. All of the OEM-fit ACDelco spark plugs feature a copper core. We offer a full line of ACDelco Spark Plug products. Sep 3, 2016 · Sep 2, 2016. Available for 3+ day shipping 3+ day shipping. 50. These three years of engines are almost identical, except for the obvious induction system. 54 r44lts6k e3. You may wish to go back to the 45s for street use. 73 posi. 045 for HEI. I pulled the spark plugs , and from the info I have seen on AC DELCO's web site says they are the wrong plugs. 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 size and heat range. They are a little easier on themselves because you usually lug the cars around at shows. Jul 18, 2012 · Antioch Arkansas. Need the direct conversion from AC Delco to NGK spark plugs. A R44TS is 1 heat range colder than an R45TS. 045"-0. 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 The R45S would be the correct plug for that engine - a 327 2bbl. so s and sx are longer then the regular plug. They are also available for Marine applications. Pros. ACDelco107029. Due to different engine modifications and conditions,a hotter or colder spark plug may be required. BS'er formally known as Rebeldryver Resident Instigator sigpic ACDelco Professional R42TS Conventional Spark Plug (Pack of 1) USD 7. 36. Jan 11, 2005 · The R-43TS spark plug supersedes the R-45TS. 60 r44s e3. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality Jul 17, 2008 · MalibuSeaS Discussion starter. #2 · Aug 30, 2009. Set the gap at . Nov 9, 2012 · ACDelco GM Original Equipment R45TS Conventional Spark Plug. 49. 035&rdquo; for points distributor, . (*3) MITSUBISHI lean burn excluded. 46 r44cxls e3. HammerDown Discussion starter. USD 85. R45TS spark plugs. Whether you are choosing from our iridium R45TS, gapped at . Sep 8, 2020 · ACDelco GM Original Equipment R45TS Conventional Spark Plug. Choose brandname and start typing model number. Mar 6, 2011 · V-groove to R45TS Plugs. 5:1 compression. Jun 4, 2006 · The AC Delco web site calls for the R45TS plugs in 1984 and the R43TS in 1985 and the iron headed '86, all with a . it never see's the engine at normal temp. The AC44 plug was standard on the older motors but it's been discontinued. NGKs actually have a much broader heat range than most iron or copper-core plugs. ACDelco CR43TS 5614029 (05614029) Professional Conventional Spark Plug BOX OF 8. This was used to prevent fuel fouling at low speeds and also to cool the spark plug at higher speeds. According to the Accel catalog the AC R45TS crosses to Accel 0576S for the short spark plug. 8L R R43CTS 0. Check if this fits your vehicle. SKU 0188549. The truck runs much smoother with the new plugs. 59 to $4. ACDelco R43TS Copper Spark Plug - 8-Pack - 19354419 GM OEM. AC DELCO R44TS SPARK PLUG ASM. Dec 29, 2014 · Heat Range Reference. The production version was introduced on the 1970 LT-1 engines and runs good on AC 44 spark plugs. " I run the AC R43TS in my 454 that has around 11. The length difference in the tip is about 1/8". Aug 30, 2009 · Everett#2390. com. But If I remember one a hotter plug one is a colder plug. a 65 smallblock engine. 48. I think the correct spark plugs for your car are R45TS. Aug 7, 2005 · Page 48 of the book "How to HOTROD Big-block CHEVYS" says "A near-perfect plug is the projected core-nose which acts as a "warm" plug at low speeds and cools off to act as a "cold" plug as RPM's are increased. 045 Jun 2, 2010 · The r43ts is a extended tip plug. The R43 was not a factory installed plug - it was a colder plug designed for HD applications such as trucks. Jul 13, 2015 · IIRC, the R44TS is a little cold for a carbed engine, R45TS would be a better plug, probably won't notice any difference in performance or gas mileage. Denso (5025) T16PR-U Traditional Spark Plug, Pack of 1. 42 r43tsk e3. 40 r44ts e3. FREE delivery Monday, April 29 on orders shipped by Amazon over $35. 040"-. PERFORMANCE UPGRADE CROSSOVER CHART y Apr 14, 2020 · Posts: 1,921. from $3. Sep 28, 2023 · The CR plugs are commercial grade and have a thicker electrode and ground. 28 replacement spark plugs for AC DELCO R45TS. 73 posi 2. USD 4. FOR ANY MODIFIED APPLICATIONS, PLEASE CONTACT OUR TECHNICAL SUPPORT TEAM ON THE CONTACT US PAGE HERE FOR HELP FINDING THE BEST SUITED PART FOR YOUR APPLICATION AND/OR CUSTOM BUILD. I have # 24's for the boat >thanks. The copper core electrode - helps transfer heat, which is important for today's smaller hotter-running engines. 050" or more) and you should be fine. 045" gap. ACDelco Spark Plugs feature only high-quality parts to help ensure durability and consistent performance: Electrodes built on a foundation of iridium, platinum or copper. Gap @ . Add. Part # R43TS. 045" You only use colder plugs in higher compression engines, or high speed engines where RPMs will stay at a high level for a long steady time frame. Mar 16, 2016 · R45TS what it was out of the factory. Blain # 026767 | Mfr # R43TS. R45TS. 5/4 drop Frame of resto has been started Oct 24, 2022 · Cross over a AC R44T to the Accel or if you drive a lot in town, cross a AC R45TS. Replacement spark plugs for AC DELCO R44T on Amazon. #3 · Jun 3, 2011. USD 27. NGK 2623 Plug. C. 5L E R43CTS6 0. Replacement spark plugs for AC DELCO R43TS6 on Amazon. 92. Feb 14, 2005. R45TS has a reach of . Thanx in advance, Frank. 12. Check for correct application and spec/measurements. This plug is also availble with another letter S which would indicate the plug has an extended tip. Feb 2, 2010 · C4 General Discussion - Will an AC Delco R45TS spark plug work for a 1985 Corvette - Hi all, I own a C6 but a friend of mine has a 1985 Corvette and is looking to change the plugs. 46 r44lt e3. 045 5613810. 40 r43ts e3. The S in the AC plug number stipulates a projected tip. If you want a plug without a resistor it would be 0276S. USD 25. 600 – 699 = Resistor. IIRC, the "6" means it comes out of the box with a larger "pre-gapped" spec on it, you'll just need to re-gap that plug to match the others (just going off memory here) This is an older thread, you may not receive a response, and could be reviving an old thread. Re: sparkplugs - R45TS vs R43TS The r45's been a hotter plug han who r43 68 Chevy Short Fleetside LSX Trading Under Way 3. I have a 1984 C-10 with a 305 (code H) that I am tuning up. Feb 13, 2005 · Massachussetts. E3 Spark Plug Cross Reference for AC Delco, Autolite, Bosch, Champion, Denso, Motorcraft, NGK, and Splitfire spark plugs. 6629 posts · Joined 2008. Spark plugs are protected with one-piece ceramic insulators. I would say either the AC R43TS or AC R44TS should be ideal Dec 6, 2019 · Truck Year. Re: AC Delco R44 spark plugs vs R43. Warranty Details ( 2 YR REPLACEMENT IF DEFECTIVE) ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ACDelco R45TS Spark Plug Fits 1985 Chevrolet C10. Leo Paugh. It's. ACDelco D468 Professional Ignition Distributor Rotor. I just picked up a 35K mile 1975 Chevelle w/350 (first year HEI). 460" and R44LTS has a reach of . 19. 23 ratings. ACDelco GM Original Equipment R44TS Conventional Spark Plug. Denso 5330 Spark Plug. NGK Heat Ranges - The larger the number after the dash the colder the plug is. All the rest, electronic, 0. 11's. 800 – 999 = Double Platinum. Nov 7, 2002 · See your local installer or retailer for details. 5260 posts · Joined 2007. That would make the plugs (if AC), M=marine. 045". It's also a slightly hotter plug than the R. SHARE POST #6. ACDelco GM Original Equipment R45TSX Conventional Spark Plug. 42 r44tx e3. USD 2. * Early in 1970 the 3964290 cylinder head was recast to use the R44T tapered seat plugs so early May 25, 2001 · I've been running R43TS plugs and before getting the car out decided to change the plugs. I think they used them in some Corvettes as well. (*6) Purchase via DAIHATSU. The letter T means it's a tapered seat plug. $3514. Autolite Iridium XP Automotive Replacement Spark Plugs, XP26 (4 Pack) USD 18. 7 out of 5 stars AC DELCO R43TS Spark Plug 8 Piece Set Kit for Chevy Ford GMC Pickup Truck V8. . Sep 2, 2008 · Jebchevelle. Mar 23, 2017 · NGK UR5, 6638, or BPR4FS match up to AC Delco R45TS and BPR6FS match up to AC Delco R43TS AC Delco nonclementure: Resistor plug("R"), 5/8" x 14mm, . Basically it boils down to the R-43TS having the same cold fouling resistance as the R-45TS due to its copper core construction, the colder R-43TS reduces the tendency for spark knock which would be picked up by the knock sensor Sep 11, 2013 · The steps are about 50 degree increments and are a measure of tip temperature not engine temperature although the latter is not without influence. I tried 'em in my 327/250. ACDelco R44TS Spark Plug. That would depend on your driving habits. 42 r43ts6 e3. 20% off orders over $100* + Free Ground Shipping** Eligible Ship-To-Home Items Only. Use Code: APRILFUN Replacement spark plugs for AC DELCO R44TS on Amazon. ACDelco Nickel Spark Plug offers better engine idle stability and smoother performance. Yeah also on the thermostat unless you have a chip programmed for that temp thermo. the s and x are extended plugs. Basically a heavy duty CAUTION * Use IXU22I and VXU22I with 3SZ-VE engine. $ 3 59 — $ 4 09. Solid lifter motors are more prone to plug fouling I feel. Select delivery location. 42 r43tx e3. Attached Images. The tip length is different, due to the heat range change. I use the R45TS (I ahve angle plug heads),and it has always worked out well. 09. Then Jacobs installed one of his ign systems. Scott. Basically a heavy duty plug used much in GM small block TBI trucks and other GM vehicles. 040, and it seemed to work well. Increases the rate of acceleration. $1608. wg ut qz sz nv lw is fu yr nn