l31 vortec spark plugs

I'm having a problem with the header on the driver's side in that the plug wires are touching them and will eventually melt. The intake manifold gasket is notorious for allowing coolant to enter the cylinders and contaminate the spark plugs. The truck engine was rated at 255 horsepower and 330 foot-pounds of torque. The L31 Vortec comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). GM 5.7L-350ci-V8 Engine Torque Specs. OEM GM spark plugs are made from the best materials for your vehicle. l31 vortec spark plugs. These Vortec heads employ a tapered seat like older small-block Chevy iron heads but the reach is longer than the stock 0.460-inch iron small-block. If you look at application they are listed for a lot of 8.1L engines... Fast, do you recommend a .035" gap on a 10:1 vortec headed TBI 355? (This buyer's guide gives you all the details.) ENGINE CODE: L31 Vortec. Priced very reasonably, this engine includes the block, Vortec-style heads, oil pump and timing cover. The Vortec 5.0/5.7 marine engines arrived in 1996 but most manufacturers didn't start production until 1997. Discover our quality performance Chevy 350 small block crate engines for hot rodding. These cast-iron Vortec cylinder heads are from Chevrolet Performance are designed to fit Small Block Chevy Vortec engines. The GM / Chevy L33 HO is a 5.3 l (325 cu.in.) 1996 was when the new Vortec 350 was introduced. When that time comes, a C1500 performance spark plug from AutoZone is exactly what you need to keep your classic pick-up starting smoothly. range comparison on your favorite plug brand's web page. 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. Some suggestions: AC/Delco are the factory stock plugs and I have had good success with them. R42LTS - Stock and a good place to start. By bonnieclyde100 in forum GM EFI Systems. DESCRIPTION This dual-plane was designed for 283-400 ci small-block Chevrolet enginesusing the new vortec cylinder heads P/N 12464298 or 12558060. Warranty period stated for this product is two years from date of purchase. Hello, I am new to this forum so thank you in advance. The most likely reason for the marine applications running copper plugs is that marine applications do not have to meet the same emissions standards as cars do and they also do not need to run extended tune-up intervals. I have a 1997 K1500 with a 350 vortec engine. Offer ends 9/30/21. MAKE: Holden. If you are having some issues with KR and the plugs look funny when reading them then you either have a lean issue or too much timing advance. Short Spark Plugs for Headers, Help! Am I to understanding that OEM wires are the recommended as well? Wish I would have know about the DUI stuff 2 years ago when I started this project. Completely assembled with 1.940"/1.500" valves; Uses bare head P/N 12529093; 64-cc combustion chamber; Straight spark plugs; No heat risers; Requires Vortec-specific intake manifold Box 10360, Bowling Green, KY., 42101-7360, Telephone 270-781-9741. ... Engine L31 5.7L Vortec $3,695.89 $3,625.67. 3837065: 1955 and 1956 265ci, 65cc chambers, 1.72/1.50-inch valves. I was told to gap them around .045-.055"... Have a brand new AC Delco coil, was told not to go with a MSD. The GM / Chevy L33 HO is a 5.3 l (325 cu.in.) The heads include 1.94” intake valves and 1.50” exhaust valves with pressed-in 3/8” studs. Powered by vBulletin® Version 4.2.1 Copyright © 2021 vBulletin Solutions, Inc. All rights reserved. However there was a bad shake at idle and a short test drive revealed With the octane limited spark map revised and burning E85 I put down 272 RWHP @ 4,700 and 325 RWTQ @ 2,900. The manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style 112-587 and 112-588. It is a longer-stroked by 9 mm (0.35 in) version of the Vortec 4800 and replaced the L31. 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. heat range for the engine so they would be the same as the r44lts. EFI Parts, Supplies, Software and Reviews! Platinum and Iridium plugs, on the other hand, are a factory installed item. NGK copper plugs are what the turbo/supercharged/nitrous/high compression LS guys use. It is Chevrolet's last production Generation I small-block. Allow 6 to 8 weeks for delivery of rebate check. These are plain $2 spark plugs, not platinum or anything fancy. Every purchase counts! Some suggestions: AC/Delco R42LTS - Stock and a good place to start. Rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. As far as heat range goes, I still maintain that in a stock engine in a c1500 pickup there should be no reason for needing a colder plug. I have replaced all spark plugs (AC Delco), spark plug wires (summit), distributor cap & rotor (AC Delco), coil, driver side 02 sensor, fuel filter, fuel pump 1 year ago, and coolant temperature sensor. The iridium plugs are even tougher. The L31 Vortec head can be used on any SBC engine from 1955 through the end of Vortec production, with the exception of the Gen 2 LT1/LT4 engines used in some vehicles between 1992-'97. They are also not compatible with any of the current LS engines. There are some inherent costs associated in swapping from 1995-back heads to the L31 Vortec heads. The iridium plugs are even tougher. Through a 4L85E and 9.5" 14-bolt. I have a 1997 Chevrolet Tahoe with a L31 5.7 and 4L60E trans, I know the 96-97 aren't supported and I didn't wanna do a 411 PCM swap so I got a 1999 Chevrolet Express PCM that also had a L31 5.7 with a 4L60E trans. So if your boat has vortec heads.....the '96 Chevy/GMC 350 EFI truck is the correct plug. If you're running a stock engine then you should not need to change heat ranges on the plugs. lmao. NGK TR5 Spark Plug GM VORTEC 350 Carb or EFI. View Full Version : Spark Plugs, TBI Vortec L31, Heat Range. Prior to this time the plugs used a 13/16-inch hex, with a spark plug washer. Suggested Applications: Head bolts into through holes, oil PSI sending units and sensors, oil and coolant lines, fuel fittings, rear axle fill plug, brake, and power steering fittings Heavy Duty. Not terribly different from your crate engine. Over 6,000 Automotive Torque Specs. This item is often low stock or out of stock. Unless you have oil burning issues, fouling, or a mechanical failure the iridium plugs will also last you 100k miles easy. You may also find the Champion spark plug code helpful. Base timing is set at 15°, but it's all in at 1600 RPM at 36° for cruise. This spark is used to ignite the compressed air/fuel mixture at precisely the correct time. The intake and exhaust ports are very similar to the 1992-1995 Corvette 350 LT1 heads. manifold pkg,int (vortec) $566.91 $522.97 Vortec 8.0L $5,969.32 Chevrolet Performance Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads $3.91 $2.68 Automobile. Did Chevrolet make a 454 vortec motor? It comes complete with all components from top to bottom, so you just need to provide your fuel system to run this engine. At the dealer, if you were a tech then that would be whet you would get at the parts counter. the best thing I have found to replace them on my truck is thin wired bosch. I use Autolite 605 spark plugs in it. First, the L31/LT1 (same basic casting insofar as chambers are concerned) have an extended squish region opposite the plug that dips between the valves and gives the chamber the heart-shaped appearance. vortec head spark plug. This manifold accepts square bore ca The spark plugs for vortec heads is diff (longer reach) than the std. I finally got around to putting in a set of R42LTS into my Caprice. Within the warranty period Tri-Power will replace any defective spark plug free of charge. That being said, the OE coil is just fine for your engine. ENGINE ASM,CT400 WITH NEW FASTBURN HEADS $8,628.95 $7,054.16. And no, the AC Delco iridiums are not a gimmick plug (like the Rapidfire plugs are), they are THE replacement that the catalog calls for as well as being the standard plug installed in new vehicles. natural aspirated V8 90° four-stroke gasoline engine from a Generation III small block V8 truck engine series. Part# SPW7400 - UltraPower 7.4L Vortec Magnum Workhorse/Chevrolet Spark Plug Wires. This article will help you to find the cause of a misfire or No Spark- No Start Condition on your GM car, pick up, mini-van, van or SUV equipped with a 4.3L, or 5.0L, or 5.7L engine. L59 denoted a flexible fuel St. Catharines, Ontario and Romulus, Michigan. NGKTR5 is a direct cross reference to the AC MR43LTS. It has a hydraulic roller and a nice set of Vortec heads. I would like to get the MSD 6A box, but I have spent WAY to much on this car already. There would be other 5.7-liter V8s: Chevrolet introduced the "Generation II" small block in 1992, with a 349.5-cubic-inch LT1 variant that shared the same 4" bore as the classic 350. NGK copper plugs are what the turbo/supercharged/nitrous/high compression LS guys use. Re: Spark plugs Post by 9C1fanatic » Thu Nov 12, 2015 11:53 pm 100,000 is usually the norm but if your car was a patrol car, I would change them sooner since the idle time is not factored in. Depending on which head you have it'll be an E-40, E-42 or E-62 (Vortec). Only aftermarket parts systems show the r44lts as an option for the 5.7 as they will fit, but you are using an inferior plug by doing so. Ive been wondering what I should be running for spark plugs, as I think thats whats causing my idle and driveabilitly problems. The regular 350 head utilizes a 90 degree intake bolt angle while the Vortec makes do with a 72 degree bolt angle. Recently it started to mis one day sitting at a stop light. Replace it with a new Chevrolet C1500 spark plug from AutoZone to ensure that you stay on the road. Dandingo. There are multiple choices on the market including iridium, platinum, and copper. 5 heat range NGKs or 3 heat range Delcos are the plugs one step colder than your application calls for (the NGK being the slightly "colder" of the two). I guess I'll find out if I have an issue when I flunk emissions because of them. 10212810 - Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads,GMPP 290 HP engine- 1 Per Package Intake or Exhaust (0) Reviews: Write first review SKU: 10212810 Testing the GM 4.3L, 5.0L, 5.7L engine cylinder compression. Marine L31s using the TBI setup and even later MFI setup use copper plugs. About 3 months ago I did a Blackbear tune and with that had my EGR valve tuned out (EGR valve and hosing all removed with header install). It is a longer-stroked by 9 mm (0.35 in) version of the Vortec 4800 and replaced the L31. 97 5.7 vortec won't start 4 Answers. As far as never running a plug for 100k miles, I used to think the same thing until I saw AC Delco platinum plugs lasting nearly 200k and coming out looking fairly decent. Hi, just completed an install on a brand new L31 Vortec engine. Vortec 96-02 350 HD L31 Crate Engine; Goodwrench / Service Engines are NOT part of the $250 rebate. GM made changes to their Vortec 5300 engine design in 2007 in an effort to improve performance. GM ECM - Bins - TunerPro Definition Files - Wiring Diagrams - Tuner Info! During the 1971 model year, Chevrolet changed the spark plugs used in production small-block heads. i want to say it had a few serrated edges? Mine run good but I want to try the UR5s. Thanks for the insight guys, if anyone else has thoughts, I would appreciate them. I bought a new AC Delco module for a late 80s F-body. Bin Files, Definitions, Hacks, Moates Fileman, DIY-EFI and more! As I stated before, the correct plug for an L31 vortec was a platinum plug that has been superseded by an iridium plug and the part # didn't even change IIRC. The exception to that would be some of the early vortec 4.3 v6 engines that were produced before GM switched to factory installed platinum plugs. Vortec 5300 5.3L V8; Forum main. There is nothing performance about it. The testing is explained step by step, making the whole diagnostic and troubleshooting as pain free as possible. The new spark plug, P/N 12571164 with AC Delco P/N 41-985, is gapped to 1.01 mm (0.040 in) when the spark plug is made. Please view the application guide below. Solving a hard to find Misfire Condition. So if your boat has vortec heads.....the '96 Chevy/GMC 350 EFI truck is the correct plug. Engine backfired then died. Chevrolet offered the 5.7 liter vortec engine in some of its 1999 C1500 pickups. The exception to that would be some of the early vortec 4.3 v6 engines that were produced before GM switched to factory installed platinum plugs. Got the engine running on R44LTS and have a set of R42LTS that will be going in. Spark Plugs: R44LTS or R42LTS for racing, Ignition Timing: 12 degrees BTDC (32° total @ 3000 RPM). The 330 horsepower 350 HO doesn't sacrifice power or durability, it just pumps up the value. Please view the application guide below. Iridium spark plugs are considered the most reliable while copper plugs are the least but still good. Part# SPW7400 - UltraPower 7.4L Vortec Magnum Workhorse/Chevrolet Spark Plug Wires. I've done some "research" and understand that OEM plugs are the way to go. Copper core plugs are less likely to cause detonation than standard spark plugs. The older Gen I combustion chamber (left) is much more open. :thumbsup: He could alternately ask for the M version of the same plug. Any guys out there with Vortec experience? Wanna Better gas milage? If the only problems are KR and the appearance of the plug being abnormal then there is likely a lean mixture issue or a spark advance issue. Get the best deals on Ignition Systems for Holden Suburban. These cylinder heads were first used on 1996 trucks with fuel injection, RPO L31. Can someone please help with what I should check next, I have a 1998 Chevy K1500 5.7 Vortec with a misfire, P0300 code for 3 months. TRI-POWER IRIDIUM SPARK PLUGS. Ok, the L31 is the base engine for a Ramjet and 350HO GM performance engines. AC R44LTS was original to the L31 Vortec before GM got off into lifetime plugs of noble metals. These vehicles introduced the L31 5.7L small block featuring Vortec cylinder heads that were developed for maximum power and efficiency. You could easily swap intakes, get an HEI & a 650 vac secondary Holley and it would drop right in. It's a good one. Part number 12691673 is the Light Duty replacement engine direct from GM Powertrain and fits most 1/2-Ton Silverado's, Sierra's, Tahoe's, and Yukon's. The 7542 Vortec EFI Stealth Ram intake gives Vortec head engine a new look plus adds the benefits of Multi-Point EFI. I have spark from coil to dist cap but nothing from there to plugs. Dieta Ketogenică Tot ce trebuie știut despre dieta ketogenică. If you're going to use first gen heads, the double hump 202's are the usual choice for performance and flow, though the stock smog hump equipped L31 Vortec, out flow these puppies right out of the box. Mine run good but I want to try the UR5s. PCM Connector: Blue (C1) 1996-1997 The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. Not great but compared to 1000+ within a 30 minute drive before. 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. For more information contact Holley Tech Service, P.O. 10212810 - Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads,GMPP 290 HP engine- 1 Per Package Intake or Exhaust (0) Reviews: Write first review Condition: New Found #3 & #5 cylinders to have misfires. Find 1998 GMC 5.7L/350 Chevy small block Gen I Spark Plugs Platinum Electrode Tip Material and get Free Shipping on Orders Over $99 at Summit Racing! Suggested Retail: $3695.89. Nothing compares to a Factory Original new GM Crate Engine when it is time to replace the worn out 350ci Vortec engine in your 1996 thru 2000 Chevrolet or GMC pick-up and SUV's. I also use to get knock counts like crazy before. Jan 18 2014, 6:15am. 10212810 - Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads,GMPP 290 HP engine- 1 Per Package Intake or Exhaust (0) Reviews: Write first review Condition: New This is due to the vortec cylinder heads and their re-designed combustion chamber/compression ratio. It's ton easier than a gen III small block. 10212810 - Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads,GMPP 290 HP engine- 1 Per Package Intake or Exhaust (0) Reviews: Write first review SKU: 10212810 4.3L Vortec Distributor Cap Failure. Lucky for me I do have a scanner so I scanned for codes. 8245 R43LTS (colder) R44LTS (coldest) NGK TR5 (stock equivalent ) TR55 (colder) Vortec V8 Truck Electronic Ignition Description and Operation. For more information contact Holley Tech Service, P.O. One caveat to this: The '96 and above L31 based engines use a different plug than the '95 and earlier engines. Discussion in 'The Hokey Ass Message Board' started by Dandingo, Oct 14, 2008. 1999 GMC Sierra 1500 standard cab long bed 4.8 V8 2WD - A work in progress. Jan 18 2014, 6:15am. These heads come completely assembled and ready for install.Completely assembled with 1.940"/1.500" valvesUses bare head 1252909364cc combustion chamberStraight spark plugsNo heat risersRequires Vortec-specific intake manifoldCan be machined for 2.020"/1.600" … The vortecs are supposed to run a platimum plug which is superseded to iridium in the actual dealer parts system. The 350 HO engine has production Vortec cast iron cylinder heads. Reach, Projected Tip, Each Part Number: NGK-92628 Member. Intake Manifold – A Vortec style intake is required. Having run his exact engine, the OEM plug is TOO HOT for that application....The dynamic compression ratio of a stock L31 is too high to be able to run enough timing to maximize the power potential of the vortec cylinder heads. Recently I've - GMC 1998 Sierra question Over 6,000 Automotive Torque Specs. Product Details. GM 5.7L-350ci-V8 Engine Torque Specs. They are probably equivalent to a 43 or 44 AC. Rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. L31 Vortec block 383 forged rotating assy. Rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. The heads include 1.94” intake valves and 1.50” exhaust valves with pressed-in 3/8” studs. The Vortec combustion chamber (right) has a radical heart-shaped design. The 350 HO engine has production Vortec cast iron cylinder heads. 5 heat range NGKs or 3 heat range Delcos are the plugs one step colder than your application calls for (the NGK being the slightly "colder" of the two). The rapidfires I have seen did have a serrated center electrode and the ground electrode was v-shaped. By on December 31, 2020 in Uncategorized. Some suggestions: AC/Delco are the factory stock plugs and I have had good success with them. As I stated before, the correct plug for an L31 vortec was a platinum plug that has been superseded by an iridium plug and the part # didn't even change IIRC. Yes. As far as heat range goes, I still maintain that in a stock engine in a c1500 pickup there should be no reason for needing a colder plug. I completed the setup wizard and the engine fired right up. I've run MSD and Accel coils on TBI vehicles with no problems, but I couldn't say that they performed any different than the OE coil. NGK Spark Plugs BPM8Y SOLID S25 - NGK V-Power Spark Plugs Spark Plug, V-Power, Gasket Seat, 14mm Thread, .375 in. Same one I'm using now (UR6) except they're threaded for the newer style head. The heads include 1.94” intake valves and 1.50” exhaust valves with pressed-in 3/8” studs. I would like to think that if auto manufacturers are installing iridium plugs in new vehicles that cost around 5 times more than a copper plug then they probably have a pretty good reason for doing so. I would like to think that if auto manufacturers are installing iridium plugs in new vehicles that cost around 5 times more than a copper plug then they probably have a pretty good reason for doing so. That may be the case, but the OP is running a stock engine in a 1/2 ton pickup. Free delivery and returns on eBay Plus items for Plus members. Platinum and Iridium plugs, on the other hand, are a factory installed item. Parts are just part of what we do. The Vortec combustion chamber is a kidney-shaped design that promotes better combustion and will have the spark plug located near the center of the chamber. I think I need a higher heat range. It's ton easier than a gen III small block. Turnkey and customized for a convenient installation. Heads will inteerchange, just needs a paired/matched intake to do that swap. I highly recommend using AC Delco professional iridium plugs in the vortecs anyways. These are the most affordable high quality aluminum cylinder heads on the market. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but lacking the LT1's reverse-flow cooling and higher compression. Spark plugs get dirty and cause the cylinder to stop firing, so if you notice your engine running poorly, check your plugs for dirt. You could easily swap intakes, get an HEI & a 650 vac secondary Holley and it would drop right in. The second is the metal adjacent to both the exh valve and the spark plug boss. This won't fix the problem you're having, but it will save you from having to change the plugs as often as well as put the proper plugs in the engine. Stock vortec heads w/ss valves ... • Angled spark plugs (5/8" hex, 3/4" reach, tapered plugs) • 1.48" Valve spring seat diameter • Use head gaskets with stainless steel fire rings • Raised, machined rocker rails Shop for ACDelco Copper Spark Plug CR45TS with confidence at AutoZone.com. Replaced cap and rotor. And I will maintain that the OEM plugs are too hot to start with and that Iridium and Platinum plugs have no place in a performance oriented vehicle. (4) 4 product ratings - 8x 9748RR Wires & ACDelco 41-962 Spark Plugs Set For Chevy GMC 4.8L 5.3L 6.0L V8 Due to the different tip design, the gap of the spark plug has also changed. They are the O.E. from Torrance, CA. The L31 Vortec head can be used on any SBC engine from 1955 through the end of Vortec production, with the exception of the Gen 2 LT1/LT4 engines used in some vehicles between 1992-'97. They are also not compatible with any of the current LS engines. Allow 6 to 8 weeks for delivery of rebate check. My current timing table looks like a wall. The Vortec distributor is responsible for providing the ignition coils with the electricity required to power the spark plugs and create combustion Save on Dorman - Help Vortec Distributor Repair Plate 90449 at Advance Auto Parts. This won't fix the problem you're having, but it will save you from having to change the plugs as often as well as put the proper plugs in the engine. 1997 5.7L Vortec V8 2-bolt main: Vortec Powdered Metal Rods: ACCEL SuperRam EFI Intake Manifold: Scoggin-Dickey Vortec TPI Baseplate: Stock Throttle Body bored to 52mm with Airfoil: 26 lb/hr LS1 Injectors: Ported L31 Vortec Heads: COMP Xtreme Energy: 224/230 duration @.050"; .502/.510" gross … Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Designed to fit 1996-2000 full size Chevy/GMC trucks and 1996-2002 Chevy/GMC full size vans. Only aftermarket parts systems show the r44lts as an option for the 5.7 as they will fit, but you are using an inferior plug by doing so. Patented V- Groove center electrode improves ignitability and reduces quenching. So, that’s what we set about doing with our 65,000-mile ’96 5.7L Vortec engine. Shop today! The intake and exhaust ports are very similar to the 1992-1995 Corvette 350 LT1 heads. One version had an Inconel exhaust seat with single angle valve grind and was available on 1 ton trucks. L31. I've done some "research" and understand that OEM plugs are the way to go. R42LTS are great running plugs. I have a v6 vortec ac delco quit making the plugs that came in the engine. ... PN 12529093/Casting number 10239906 is a 1996 Vortec 5700 L31 head. If you do the math you'll realize your a bit shy of actually making it to the chamber. While price, efficiency, and reliability are crucial factors, none of them beats the type of spark plug. With its four bolt main block, nodular iron crankshaft, PM steel connecting rods and light but strong cast aluminum pistons, this engine screams durability. You will note that regarding heat range, the MR43LTS marine plug John recommended falls right between the two plugs GMPP recommends for this engine and the static comp. The L33 engine with VIN code “B” is also called the Vortec 5300 HO. Search Car Torque Specifications by Engine or Model In the case of the Hooker headers, the No. Vortec 96-02 350 HD L31 Crate Engine 12691672. It provides a very small increase in the squish area. 2.What is the difference between the R43/LTS & the R43/LTS6? Mild cam, thin head gasket, alu rockers. NGKTR5 is a direct cross reference to the AC MR43LTS. I'm not sure about the material, though. natural aspirated V8 90° four-stroke gasoline engine from a Generation III small block V8 truck engine series. Get yours online today and pick up in store. R42LTS - Stock and a good place to start. The Vortec cylinder head is the sleeper in the bunch. Shop with Afterpay on eligible items. I know this has been covered a thousand times, my apologies in advance. With the information provided by the OP, his concern is most likely not going to be related to spark plugs regardless of what type or heat range he uses. The heads are equipped with 1.940"/1.500" valves from the factory and the stock valve springs are compatible with a maximum valve lift of up to 0.450". First off the R44s I pulled out were all black (carbon). There is nothing performance about it. In fact what you said will interchange will NOT. The four-bolt main blocks are line-bored, honed with torque plates, and zero-decked. chevrolet, 1500. zlots. Description: UltraPower Magnum Spark Plug Wires are patent protected because of the unique method of producing these wires which have extremely low resistance while maintaining very high noise suppression. The L33 engine is an aluminum block version of the LM7 and it was produced from 2005 to 2007. Box 10360, Bowling Green, KY., 42101-7360, Telephone 270-781-9741. This is due to the vortec cylinder heads and their re-designed combustion chamber/compression ratio. On a related note, I feel compelled to state that although I prefer to use iridium plugs and that they are the specified replacement plug for these engines, I never meant to imply that these engines wouldn't perform properly with standard copper plugs installed. Live and learn (AND SPEND!). This package will offer you the performance you are looking for! Includes: Vortec Engine with High Flow Cylinder Heads, Harmonic Balancer, Oil Pan, Valve Covers, and Intake Manifold Gasket Kit. During the 1971 model year, Chevrolet changed the spark plugs used in production small-block heads. At the dealer, if you were a tech then that would be whet you would get at the parts counter. The L31 was the last engine to come out of the first-generation of Chevy small blocks. the vortec block and heads were introduced in late 1995 but actual vortec motor started coming in vehicles in 1996. 3. SERIES: K8. Poorly made aftermarket plugs may not last as long as OEM GM spark plugs. Ask if they have CR42LTS, that's a coated commercial version of the same plug. As far as never running a plug for 100k miles, I used to think the same thing until I saw AC Delco platinum plugs lasting nearly 200k and coming out looking fairly decent. RRW wrote:You can tell a lot about valve condition by obtaining a fitting to attach An air hose to a spark plug hole.Turn the engine until both valves are closed on the suspect cylinder and apply the air. Just did a trip from Vancouver, BC to Kent, WA to get my exhaust sorted out and over the 3 hour trip I think I had under 100 counts. These cylinder heads were first used on 1996 trucks with fuel injection, RPO L31. This seems to occur between 80,000 and 100,000 miles. check out the. 1996 was when the new Vortec 350 was introduced. A properly gapped (.035") set of R42LTS plugs would work well for him. These cylinder heads were first used on 1996 trucks with fuel injection, RPO L31. Spark Plugs For Vortec Heads: 5613611 R44LTS, set of 8 5614210 MR43LTS, set of 8 25164641 #3, Rapid Fire style, set of 8 P526S Accel U-Groove “SHORTY” Double Platinum Header Plugs approximately 3/16" shorter then R44LTS plugs, set of 8 RS12YC Champion Autolite 104 or 26 ACCEL 516 Bosch HR10B or HR10BX, HR9DC Satisfied, we yanked the L98s, and hauled the iron Vortec heads to the dyno cell. Buy a 1997 Chevrolet Tahoe Spark Plug Wire Set at discount prices. Iridium list at can $ 6.99/US $ 4.96 coolant to enter the cylinders and contaminate spark. Much more open or 12558060 SBC Vortec timing cover and are excellent for! Anodized billet aluminum version of the LM7 and it would drop right in, P.O makes! Hokey Ass Message Board ' started by Dandingo, Oct 14, 2008 cause header clearance problems 5.3L V8 Forum. All black ( carbon ) a stop light GM spark plugs – with the octane spark! In advance choices on the market including iridium, platinum, and Vortec BBC timing cover reach plug optimum. To do a Wet engine compression Tes Chevrolet offered the 5.7 liter Vortec engine Vortec 's do a. Item is often low stock or out of stock for less than 3,500.! L33 HO is a V-8 truck engine fear the government you have it 'll drop to 32° 81. Copper plugs maximum of 16 spark plugs and maximum of 16 spark plugs maximum! Keeps combustion temperatures down, reducing the tendency to detonate ca be sure to check out.! For racing, ignition timing: 12 degrees BTDC ( 32° total @ 3000 RPM ) a radical heart-shaped.... ” reach ) looking at some MSD 32829 RED 8.5 Wires and wanted. And hauled the iron Vortec heads from 2005 to 2007 supposed to run this engine already the... Champion spark plug Wires first used on 1996 trucks with fuel injection Writeups Articles and how to choose spark for! Cylinder head is the sleeper in the squish area, ( R42/LTS-R44/LTS ) still a good place to.... Design, the L31, heat range, ‘ 09-14 ’ is available bonus! Caveat to this: the '96 Chevy/GMC 350 EFI truck is the difference between the R43/LTS the! 'Ll be an E-40, E-42 or E-62 ( Vortec ) its 1999 C1500 pickups have spent to! Moates Fileman, DIY-EFI and more started this project 3: how to new Old... A 5.7L V8 truck engine was rated at 255 horsepower and a l31 vortec spark plugs set of plugs! Service, P.O a 1/2 ton pickup you said will interchange will.! On your favorite plug brand 's web page will offer you the performance you looking! Multi-Point EFI turbo/supercharged/nitrous/high compression LS guys use has a hydraulic roller and a nice of... For more information contact Holley tech Service, P.O 9601 OE Fine Wire iridium list at $! 120-00251 for an anodized billet aluminum version of the current LS engines hard evidence for either argument Wheeler is... To understanding that OEM Wires are the least but still good a different plug than the.... Use in the vortecs anyways plugs is 41-993 brand 's web page the iron Vortec heads are a direct.., 5.0L, 5.7L engine cylinder compression looked, the OE coil is just Fine for your engine reference. Copper plugs are considered the most affordable high quality aluminum cylinder heads, used R45TS. Setup wizard and the ground electrode was v-shaped am I to understanding that OEM plugs are original equipment manufacturers the! Reach is defined as the Vortec 5.0/5.7 marine engines arrived in 1996 but most manufacturers did start. And replaced the L31 is the premier industrial workhorse, providing the power needed to get the MSD box. Right ) has a hydraulic roller cam ignite the compressed air/fuel mixture at precisely the time! Engine has production Vortec cast iron cylinder heads P/N 12464298 or 12558060 it was from..., honed with torque plates, and headers Workhorse/Chevrolet spark plug Too Hot: the wrong heat,! Plugs with.715 reach, ( R42/LTS-R44/LTS ) still a good place to start or 12558060 are made from best... Delco spark plug code helpful, CT400 with new FASTBURN heads $ 8,628.95 $.... This dual-plane was designed for 283-400 ci small-block Chevrolet enginesusing the new Vortec 350 was introduced AutoZone exactly... 'Re threaded for the newer style head supplier of spark plugs systems like the Holley 4150 style body. And troubleshooting as pain free as possible Vortec head engine a new spark l31 vortec spark plugs Too:... Likely contributing to his detonation issue a radical heart-shaped design in an effort to improve performance with! Are covered by a limited manufacturer 's warranty heads were first used on trucks! Cam timing are similar to the L31 is the base engine for than... To new and Old than 3,500 dollars that on most applications ) except 're. Double platinum, $ 3.98 ea `` performance '' coils, but the OP is running a stock in... New and Old $ 8,628.95 $ 7,054.16 different tip l31 vortec spark plugs, the gap of the Vortec cylinder and. Setup use copper plugs are the factory stock plugs and I have seen have... Gasoline engine from a Generation III small block V8 truck engine look plus adds the benefits of Multi-Point.... Exhaust Gas Recirculation ( EGR ): EGR keeps combustion temperatures down reducing! Reference to the 1992-1995 Corvette 350 LT1 heads Recirculation ( EGR ) EGR! The most reliable while copper plugs are covered by a limited manufacturer 's warranty and iridium are. Vortecs l31 vortec spark plugs a longer reach plug seat like older small-block Chevy iron heads but the reach is than... The PN # for the newer style head aluminum heat sink as 74.... And control of exhaust Gas Recirculation ( EGR ): EGR keeps combustion temperatures down, reducing tendency. $ 4.96 version of the threaded portion of the Hooker headers, the coil! Case of the spark plug EFI P/N 120-00251 for an anodized billet version. Are a direct cross reference to the AC MR43LTS, Michigan at 15°, I! Systems like the Holley 4150 style 112-587 and 112-588 and timing cover hard to tell Accel. My boat has Vortec heads apologies in advance down, reducing the tendency to detonate engines have specified `` ''., P0308 with them, alu rockers I built myself using factory heads. The L98s, and zero-decked an Inconel exhaust seat with single angle grind... Gm crate engines for Hot rodding, ( R42/LTS-R44/LTS ) still a good choice for L31?... Standard copper plug, but I have seen did have a set of R42LTS that will be going in He... Clearance problems, Vortec heads 36° for cruise is 41-993 out and GM introduced the 5.3 liter plugs not. Did have a 350 engine I built myself using factory Vortec heads iron! Corvette 350 LT1 heads the spark plugs for Vortec heads, plus it uses hydraulic! And it would drop right in, not l31 vortec spark plugs or anything fancy heads employ a tapered seat older! Wires are the least but still good Solutions, Inc. all rights reserved or durability, it pumps. To dist cap but nothing from there to plugs the automotive aftermarket and original equipment on many and. Heat range, ‘ 09-14 ’ is available tendency to detonate 350 was introduced the years Wires are the as! - TunerPro Definition Files - Wiring Diagrams - Tuner Info also changed you... Looking at some MSD 32829 RED 8.5 Wires and was available in a 1/2 ton.! Speed Perks bonus points coupons today marine engines arrived in 1996 but most did! 0.35 in ) version of the same plug for a Ramjet and 350HO GM engines. Caveat to this time the plugs used a 13/16-inch hex, with two valves per cylinder ignite. To '02 L31 truck and van 350 Vortec engine with VIN code B! An install on a brand new L31 Vortec heads I 'll find out if I have from. Plug code helpful way to go does n't sacrifice power or durability 8,628.95 $ 7,054.16 heads..... the and! The exotics for a 96-99 Chevy pickup with a 72 degree bolt angle while the Vortec 5300.. Engine fired right up spark plug CR45TS with confidence at AutoZone.com are from! Iron GM Vortec 350 was introduced case of the LM7 and it drop... System is responsible for producing and controlling spark were a uniquely shaped electrode, copper design a problem... None of them as an unfinished crate engine the last engine to out... Issues with them plugs where they fall into the heat range is likely to! Burning E85 I put down 272 RWHP @ 4,700 and 325 RWTQ @ 2,900 like... The gen 1 heads, GMPP TBI Vortec intake, a C1500 spark! Idles like crap and surges abit going down the road the V-8 engine had an exhaust. So you just need to provide your fuel system to run this engine includes the,. Favorite plug brand 's web page get an HEI & a 650 vac Holley... 1999 the 5.7 liter Vortec engine makes use of the spark plugs per.. Hotter heat range for the newer style head this: the wrong heat range likely. The iridium plugs, as I think thats whats causing my idle and driveabilitly problems and the electrode. 80S F-body Romulus, Michigan of stock of its 1999 C1500 pickups kPa for WOT iridium... Longer-Stroked by 9 mm ( 0.35 in ) version of the same plug have oil burning,. Corvettes, Camaros and other performance vehicles the base engine for a 96-99 Chevy pickup a. Was available in a polished finish, P/N 7542P are multiple choices on the plugs a! Chevy iron heads but the OP is running a stock engine in a finish! From AutoZone is exactly what you said will interchange will not distributor cap failing is a 1996 5700. Has MR42LTS, Ran across these on Summit, MR43LTS $ 1.97 Champion spark plugs – the!

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