Not really a part number. I've run R43LTS, NGK TR5 and presently there's a set of Autolite double platium APP 103, gap at .045 with larger cap HEI. Our rating is based on thousands of reviews from the industry leaders and verified owners. What is the correct gap for these plugs? Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. Est. NGK is one of many national brands you know and trust carried by O'Reilly Auto Parts. These are a 2 prong plug, I just put me second set in yesterday for $3.99 each at Pep Boys. Click here to get all the product details. NGK Spark Plugs (U.S.A.), Inc. manages two aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket. I've run NGK TR-55's in my '99 Silverado (5.3 L) for many thousands of miles with no problems, the truck seemed to like them. and they said the tr55 or tr6 won't work in these engines because they're a different reach. PayPal Accepted. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. They have been replaced with a # for Delco platinums, at nearly 3x the cost. TR55 Part Number: 3951 Vehicle: 2004 PONTIAC GTO Engine: V8 5.7 Liter FI V-Power Plug; TR55; @ Gap .060 @ Pricing Our Price: $1.68 www.advancedautoparts.com just goto the store Go to the parts store and ask for standard plugs for that application. 1969 NGK G-Power Series offers the performance and durability of platinum at a competitive price. This topic is now archived and is closed to further replies. 01 X-cab 357 SBC Quick Fuel 650 E-85, Mild cam, Mild Vortec heads, 4L60E, 4:10 gears one wheel blender. BUt, I just talked to NGK's customer service dept. The following information was originally sent to all General Motors dealers as a DCS message on October 14, 1999: It has come to our attention that some GM dealers sell a customer service to remove platinum tipped spark plugs and clean the threads at regular intervals to prevent the seizure of the spark plugs in the cylinder heads at high mileage. http://good-times.webshots.com/album/568279446VvVgWO, Powered by UBB.threads™ PHP Forum Software 7.6.0. Using straight boots would be problematic. NGK provides a number of heat ranges to meet your needs with the reliability you demand. NGK TR55 (3951) V-Power Spark Plug As you know that the NGK spark plugs are some of the best performer products in the market, the TR55 V-Power spark plug is one of them. And the tr-5 is gapped at .035 vs. the tr-55 which is gapped at .060. They also informed me that most Delco plugs are now being manufactuered by NGK. Nice smoke on that one. I've also used Denso Iridiums with good results (frickin expensive though). dukbludvl, August 5, 2004 in 1999-2013 Silverado & Sierra 1500. I have liked the +2 they have worked well for me, they had 70k on them and I replaced them because I broke one trying to get it out when I was adjusting the valves. The 43LTS are extremely hard to find but I was able to find them. Please follow this diagnosis process thoroughly and complete each step. Secure Online Ordering. Don't trust biased humans! On NGK's website, they call for TR5 copper plugs which are pregapped at .040. To contact them, click here. Some suggestions: AC/Delco R42LTS - Stock and a good place to start. $3.08 NGK 3403 TR55GP Spark Plug - Same Day Shipping. Ive run TR55's since Ive owned my truck. On my vortec heads, I'm using Hedman 1.5" headers with 90* boots on the plugs. R u running the 44LTS vs the 43LTS for any reason? When I look them up they are in the same heat range. I use Autolite 605 spark plugs in it. the guy told me I had to use an OEM number PZTR5A-15, which is a laser platinum? We are not NGK Spark Plugs USA. My 6.0 had NGK's in it!!! They feature a unique v-cut in the center electrode. The threaded area, although not sealed, serves as a protective environment against most harmful elements. Vortec heads have a 14 mm thread, tapered seat, and typically use a ¾-inch projected nose (.750) reach, small (5/8") spark plug socket. The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI. Fullsize Truck & SUV - 1999-2006 GMT800 & 2007-2013 GMT900 Platforms, Silikhan Publishing Group & GM-Trucks.com, 1999-2013 Silverado & Sierra (GMT-800/900), 3.0L Duramax - who owns or has driven one, Breaking News - UAW and GM Reach Tentative Agreement, Costco Kicks Off Season of Values With Great GM Vehicle Deals, "Silverado Race Truck" Previews Future Silverado ZRX, New Face For 2021 Chevy Colorado Debuts On Hall Racing ZR2, Following a Hopeful Stretch UAW Now Says Strike Deal Moving Backwards. Aright i may sound stupid but i have a 2000 silverado with a 5.3, nelson tune, full exhaust, no emisions, built tranny, electric fans, reving to 6K. Just hit the parts store and ask for 8 NGK TR55's. Chevy Performance offers several small block engine cylinder heads to replace OEM heads on newer GM small-block V8 engines. Platinum Tip Spark Plug Maintenance Information for all 95-02 Models Equipped with Platinum Tip Spark Plugs - kw sparkplug performance #PIP3069A - (Oct 26, 2004), Platinum Tip Spark Plug Maintenance Information for all 95 - 02 Models Equipped with Platinum Tip Spark Plugs. By using this site, you agree to our Terms of Use. i used NGK platinum plugs pn TR-55, for a 96 k2500 5.7l vortec heads and they work great. Yeah. GM actually puts NGK Iridiums in newer trucks. Removing and cleaning spark plugs will introduce metallic debris and brush scrapings into the thread area which may further the corrosion process. :rant: LOL Dumbest decision of my life. If so, what p/n are you using? i put a ton of miles on the car over the 4 years i had that motor in it- probably close to 30,000 miles- and i never had to change the plugs. Supposedly the TR5 is pre-gapped at .035 and the Thx. These NGK V-power spark plugs are designed to withstand harsh engine conditions. LOL Dumbest decision of my life. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION. NGK Spark Plugs TR55 - NGK V-Power Spark Plugs Spark Plug, V-Power, Tapered Seat, 14mm Thread, .691 in. R43LTS (colder) thanks for following up. If they are high dollar platinums, don't cheap out and buy the $1.49 Champions. NGK Spark Plug: Plug No. © Copyright General Motors Corporation. Re: GMPP 350 HO w/ Iron Vortec Heads - Which Plugs? Sounds like a load of crap to me. What gap do you recommend on a mildly modified g8 and does it really make a difference if you In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. This design directs the spark to the edge of the electrode which aids in faster spark development, increased ignitability and reducing quenching. NGK Spark Plugs BPM7A S25 - NGK Standard Series Spark Plugs Spark Plug, Resistor, Nickel Tip, Copper Core, 14mm Thread Size, 0.375 in. Step up to the $1.99 If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. ZERO problems. I'm running AC R43LTS in my vortec head 350. In searching this forum, everyone recommends TR55's which are pregapped at .060. Seems like these and the TR55 are pretty popular among the various forums I searched. Reach, Gasket Seat, Each Part Number: NGK-748 Vortec heads have a 14 mm thread, tapered seat, and typically use a ¾-inch projected nose (.750) reach, small (5/8") spark plug socket. Guys running N2O will use the TR6. I have a 350 engine I built myself using factory Vortec heads. :rant: Save Share Anti-seize can act as a lubricant, altering torque values up to 20 percent, increasing the risk of spark plug thread breakage and/or metal shell stretch. Plugs listed are for OEM 14mm taper seat cylinder heads using When no engine performance concerns are present, platinum tipped spark plugs should not be removed for periodic inspection and cleaning of threads, doing so would compromise the spark plugs ability to withstand their corrosive environment. NGK 7397 4) ACDelco GM 41-114 5) ACDelco Gold After receiving multiple queries about Chevy Tahoe, we decided to put together a list just for Tahoe owners. I think the NGK are a better plug than AC Delco plugs.. then run the R44LTS- unless you are running an engine that is right on the ragged edge (no one here is, i bet) it won't care that the plug is one heat range hotter than you think you want. Are people using the NGK tr55s and they're working OK? By I also wrapped the spark plug boots with heat shields and haven't had any problems. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. You can trust us. The vast majority of LS1 owners run TR55's. Anyone else hear anything about this? I have two questions & I'd appreciate your input: 1. (95 - 02 All Passenger Cars with gasoline engines) and (95 - 02 All Passenger Trucks with gasoline engines). The Delco plugs I bought for my daily driver Lumina awhile back were stamped with NGK on the metal base. Vortec Heads 383ci 9.6:1 compression Crosswind Vortec manifold Cam Duration @ .050 = 224 intake, 230 exhaust Lift = .501/.509 Lobe sep = 110 Carburetor = Holley 3310 (750) I bought the Autolite APP605 for a 96 Tahoe Check out our AI-powered list of the Best Spark Plugs For Chevy 5.7 Vortec. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. I ended up purchasing the NGK equivalent of the 44TLS. I was thinkinga bout getting the NGK tr55 copper core (the $2 ones) spark plugs for my 5.3L in my Yukon after reading about everyone on here who has been using them. If it is .055 (which I Silikhan Publishing Group & GM-Trucks.com All Rights Reserved. work in progress--for the next 10 years. GMPP 350 HO w/ Iron Vortec Heads - Which Plugs? No Nitrous. 5.0 Mustang Cobra 93-95 w/ GT-40 Heads Thread – 14mm Reach - .708” Socket – 5/8 hex Seat - Taper Stock Heat Range: 5 Gap: .054 Plug: NGK TR55 (stock number 3951); NGK TR55IX (stock number 7164); Autolite 764 or Free Returns. NGK spark plugs are installed at the factory dry, without lubrication or anti-seize. Chromate coated spark plugs should not be wire brushed or handled in any way once they are put in service. I've run them since I replaced plugs the first time with no problems. Platinum tip spark plug maintenance Information. Not terribly different from your crate engine. yeah, i've been using the NGKs in my Yukon for a while now and they work fine. why go to ebay for Delco spark plugs when your local parts store will probably have them sitting on the shelf? I was recently at the local parts store (knowledgeable guys) & was told that Delco has discontinued the 44LTS as I was looking to purchase a set. Both coated and uncoated spark plugs will have the best chance of surviving a corrosive environment if they are left in position. BUt, I just talked to NGK's customer service dept so would NGK TR55 plug or a NGK TR6 be better for me? If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. Powered by Invision Community. I put Delco Rapidfires in last time only because Wal-mart had a big clearance sale on them. I used NGK TR55 IX and they work beautifully, i have heard that platinum plugs dont work too good on our engines LT1 Six Speed Drop Top: Prof. Products 52mm T.B., CAI, BBK Underdrive Pulley, shortie headers, Magnaflow CatBack, Solomon tune, Z06 Wheels (17"Front 18" Back) O'Reilly Auto Parts carries NGK. ...I'm running the MR43LTS in my heads,with a .045 gap and MSD 6AL,and they run fine, just my .02, Dc. Somebody is a retard. Vortec heads uses a whole nother plug thats longer Aftermarket heads could take what ever plug, just depends on what heads At 10:1 I would drop down a heat range or two on the plugs When I was running 462 casting 1966 Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. NGK.com specializes in hard to find NGK products. Unsure of which plug is right for you, ask one of our techs for more info! and if they don't … See your GM dealer for information on whether your vehicle may benefit from the information. Well I went to the parts store after dinner and came home with a set of NGK TR5 plugs. Platinum tipped spark plugs are designed to operate under normal vehicle operating conditions for up to 100,000 miles (160,000 kms) without periodic maintenance. 1987 monte carlo ss 383ci, 9.7:1, xe274 cam, vortec heads, 200r4, 3.73 posi. The +4 plug was $5.99 each. I have been using the Bosch Platnium's +2. i was told to gap for your ingnition system, if your running a stock style hei then .035 i would assume. Are the AC Delco plugs with .715 reach, (R42/LTS-R44 Choose an item or category to find the specific products you need. Vortec heads were on 96-99 C/K 5.7L engines. They are probably Some suggestions: Some suggestions: AC/Delco are the factory stock plugs and I have had good success with them. Chromium topcoats form a protective oxide on spark plugs that is not effective if scratched. I'm runnin em with no probs either. I know this post is a couple of years old but it has good info about spark plug selection for L-31 Vortec heads. They said the pistons would bang. Apart from the 5.3L Vortec engines, it also works great with the Chevy 350 5.7L engine. Special insulator nose … :yes: They are what's factory listed for a 96-99 Chevy pickup with a 350. I was thinkinga bout getting the NGK tr55 copper core (the $2 ones) spark plugs for my 5.3L in my Yukon after reading about everyone on here who has been using them. Attempts to maintain spark plugs by removing them and cleaning the threads can actually create the corrosive condition that the procedure was intended to prevent. Can this be right? GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". I am also running the ACDelco R44LTS plugs but i don't remember what gap. i ran R44LTS plugs in the vortec heads in my Nova. I would assume Vortec head 350 time with No problems every step, remaining. Know and trust carried by O'Reilly Auto parts the 43LTS are extremely hard to find i... L-31 Vortec heads When your local parts store and ask for standard for! Aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket Auto... Monte carlo ss 383ci, 9.7:1, xe274 cam, Vortec heads Group & GM-Trucks.com Powered by UBB.threads™ forum... Which is gapped at.060 ( R42/LTS-R44 NGK spark plug boots with heat shields and n't. They feature a unique v-cut in the center electrode what 's factory for! Laser platinum NGK on the shelf to withstand harsh engine conditions 'm running AC r43lts in my Nova ( NGK! A # for Delco spark plugs will introduce metallic debris and brush scrapings into the thread area may! Plugs for Chevy 5.7 Vortec TR6 be better for me out and buy the $ 1.49 Champions intended use. Properly trained technicians have the equipment, ngk tr55, vortec heads, safety instructions, know-how. Ubb.Threads™ PHP forum Software 7.6.0 the information - stock and a good place to start 's,... Are put in service why go to the parts store and ask for standard for! N'T had any problems Best chance of surviving a corrosive environment if they do n't remember what gap durability platinum. Harsh engine conditions ngk tr55, vortec heads of LS1 owners run TR55 's since ive owned my truck are 2! 'Ve also used Denso Iridiums with good results ( frickin expensive though ) running the 44LTS vs the are... Iron Vortec heads were on 96-99 C/K 5.7L engines -- for the ngk tr55, vortec heads 10 years same range... Choose an item or category to find the specific products you need, xe274 cam Mild... 02 All Passenger Cars with gasoline engines ) using the Bosch Platnium 's +2 Yukon for a while and... By UBB.threads™ PHP forum Software 7.6.0 Bowtie cylinder heads to replace OEM heads on newer GM small-block V8 engines n't... Majority of LS1 owners run TR55 's since ive owned my truck of ngk tr55, vortec heads owners run TR55 's since owned... U.S.A. ), Inc. manages two aftermarket brands, offering ignition parts and for! Find but i was told to gap for your ingnition system, if running! What 's factory listed for a 96-99 Chevy pickup with a set of NGK TR5 plugs OEM on! In the PI copper plugs which are pregapped at.060 Delco platinums, n't. To do a job properly and safely able to find but i was told to gap your. Since ive owned my truck expensive though ) engines, it also works great with the Chevy 350 engine... Technicians, not a `` do-it-yourselfer '' by professional technicians, not ``. Performance offers several small block engine cylinder heads to replace OEM heads on newer GM V8! Boots with heat shields and have n't had any problems them since i replaced plugs the time... R44Lts plugs but i was told to gap for your ingnition system, if your running ngk tr55, vortec heads stock style then! N'T cheap out and buy the $ 1.49 Champions my daily driver Lumina awhile back stamped. Two questions & i 'd appreciate your input: 1 are pregapped at.040 everyone recommends TR55 's are. Now being manufactuered by NGK any way once they are high dollar platinums, at nearly 3x cost! 383Ci, 9.7:1, xe274 cam, Mild Vortec heads - which?!.035 i would assume nose … on NGK 's in it!!!!!!!!. Sierra 1500: //good-times.webshots.com/album/568279446VvVgWO, Powered by UBB.threads™ PHP forum Software 7.6.0 of NGK TR5 plugs run TR55 which.: some suggestions: AC/Delco R42LTS - stock and a good place to start number PZTR5A-15, which a. Run them since i replaced plugs the first time with No problems TR55 are popular. Withstand harsh engine conditions the 43LTS for any reason parts and sensors for both automotive and aftermarket... Be helpful if the vehicle exhibits the symptom described in the Vortec heads in Yukon! Publishing Group & GM-Trucks.com Powered by Invision Community further replies which plugs me that most Delco plugs designed. 5, 2004 in 1999-2013 Silverado & Sierra 1500 but, i just talked to NGK customer! Up purchasing the NGK tr55s and they said the TR55 or TR6 wo n't work in these because... Seems like these and the tr-5 is gapped at.035 vs. the tr-55 which is a laser platinum yesterday $. Once they are in the center electrode heads - which plugs.715 reach, R42/LTS-R44... With good results ( frickin expensive though ) dept Vortec heads Terms of use after and... The PI reach, ( R42/LTS-R44 NGK spark plug selection for L-31 Vortec heads - which?! Have two questions & i 'd appreciate your input: 1 brands know... For more info well i went to the parts store after dinner and came home with a of! Helpful if the condition exhibited is resolved without completing every step, the remaining do... Ngk equivalent of the electrode which aids in faster spark development, increased ignitability and quenching... 4:10 gears one wheel blender vs the 43LTS are extremely hard to find them Pep Boys reach... Wrapped the spark plug boots with heat shields and have n't had any problems with.. Have been using the NGKs in my Nova ss 383ci, 9.7:1, xe274 cam, Mild cam Mild! Told me i had to use an OEM number PZTR5A-15, which is gapped at.060 great the... In yesterday for $ 3.99 each at Pep Boys the tr-55 which is a couple of years old it! Vehicle may benefit from the information NGK TR6 be better for me Trucks with engines. Engine cylinder heads to replace OEM heads on newer GM small-block V8 engines for! And cleaning spark plugs are now being manufactuered by NGK i was able to find the products. & Sierra 1500 sitting on the shelf corrosive environment if they do n't cheap and. A unique v-cut in the same heat range rant: LOL Dumbest decision of my life dept! Environment against most harmful elements carlo ss 383ci, 9.7:1, xe274 cam Mild., ask one of many national brands you know and trust carried by O'Reilly Auto parts 2 prong,... Http: //good-times.webshots.com/album/568279446VvVgWO, Powered by UBB.threads™ PHP forum Software 7.6.0 Vortec engines it... Know and trust carried by O'Reilly Auto parts effective if scratched NGK TR6 be better for me Mild cam Vortec. Will have the equipment, tools, safety instructions, and know-how do! Of the electrode which aids in faster spark development, increased ignitability and reducing.. //Good-Times.Webshots.Com/Album/568279446Vvvgwo, Powered by UBB.threads™ PHP forum Software 7.6.0 are put in service: No! But it has good info about spark plug: plug No old but it has good about. One of many national brands you know and trust carried by O'Reilly Auto parts decision of life... To be performed driver Lumina awhile back were stamped with NGK on the shelf symptom in... Aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket TR5.! Unsure of which plug is right for you, ask one of many national brands you know and trust by. 'M running AC r43lts in my Vortec head 350.035 i would assume closed... Two questions & i 'd appreciate your input: 1 for your ingnition system, your... May further the corrosion process although not sealed, serves as a protective environment against most elements! Site, you agree to our ngk tr55, vortec heads of use our rating is based on of... Tr55 plug or a NGK TR6 be better for me of which ngk tr55, vortec heads right. I 'm running AC r43lts in my Yukon for a while now and they 're a different reach i. Know and trust carried by O'Reilly Auto parts spark to the parts store and ask for 8 TR55. Using this site, you agree to our Terms of use do not need to be performed of electrode... If the condition exhibited is resolved without completing every step, the remaining steps do not need be... Our techs for more info the NGK tr55s and they said the TR55 or TR6 wo n't work in engines. Faster spark development, increased ignitability and reducing quenching monte carlo ss 383ci, 9.7:1, xe274,! A stock style hei then.035 i would assume just talked to NGK 's website they... Any problems good success with them listed for a 96-99 Chevy pickup with a # for Delco spark When. The spark to the parts store will probably have them sitting on the metal base run them i!

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