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misturmoneybags 0 misturmoneybags 0 Junior Member; Members; 0 46 posts; … I'm assuming we're talking about the L31, 5.7 (non LS) Vortec in this thread. The spark plugs in the Vortec heads are moved closer towards the exhaust valve, movint it towards the port giving you that much less clearance. Lately I have been thinking on just finding a short block 350 and putting my Vortec heads and a hotter cam. This helps eliminate burning the spark plug boot or dimpling the header tube. But they are very … Jeff (63CHVII) has a 283 with the Vortec heads and a mild cam. Spark Plug Accessories Year-Make-Model Year *select 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 … 90 degree plug boots worked very well on the old heads but now the plugs on the new heads are very close to my 1 3/4" header tubes. I use AC 41-993 tapered seat plugs in my 1997, 5.7 Vortec small block. My application is for the Ford gt40p head with its funky spark plug angle as compared to the regular Ford cylinder heads. Spark Plugs For Vortec Heads: 5613611: R44LTS, set of 8: 5614210: MR43LTS, set of 8: 25164641 #3, Rapidfire style, set of 8: P526S : Accel U-Groove “shorty” Double Platinum Header Plugs approximately 3/16" shorter then R44LTS plugs, set of 8 : Miscellaneous Parts For Vortec Heads: 12495499: GM Head Bolt Kit: 12495491: GM Flat Tappet HD Push Rod Kit: 12371041: Factory Roller … Quote; Share this post. If your engine is not a Vortec engine, many of the spark plugs on the list may still be great options. I need to get some new spark plugs. If you have the 13/16 size plugs your good to go. it has the gasketed seat (flat) I now need a shorty Tapered Seat Plug. Im having the same issue with my sandersons long tubes and loooking for a way to solve burnt plug boots too. Higher performance will certainly need a more effective spark plug, and these will certainly fit the costs for most individuals. But you may need to study the specifications carefully. Vortec Bowtie cylinder heads come with large valves, a thick deck surface and 66-cc combustion chambers. You will have to get a cam that will work well with lower compression (8:1-9:1). I think he liked the set up. You can barely see the ground electrode. Send Private Topic View Profile . A stock 1970 iron small-block Chevy head uses a completely different design spark plug than a GM LS engine. The white looking plugs on the left are the passenger side (bank with the o2 sensor) and the tan/brown ones are the driver side. I've got a set of Vortec heads on my TBI motor. The data can help determine the best for your particular situation. The plugs I bought per the head dealer were Autolite AR3924. Getting my money back for the pistons and having them … Thing is I don't have my GT40P heads yet to determin this. 636 Posts . The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. I use the Accel shorty spark plugs. Changed out my aluminum angle plug vortec heads for a pair of Edelbrock etec 200 straight plug heads. This is primarily attributed to the high port flow in the .300”-.500” valve lift area, wide bowl, and back-cut intake valve and exhaust. I already sent back the dome 283 pistons and the cam. Yikes, from what I do know, the reach on those are way too short for vortec heads... they won't work as they should as the spark would not be far enough into the combustion chamber. Discussion Starter • #1 • Mar 13, 2005. Ever wonder why after all of these years we still have header/spark plug issues on a SB Chevy? (Topic#232686) Charlie57 Valued Contributor Posts: 3098 Loc: Lebanon, Tennessee Reg: 03-30-08. You also have to make sure you have the right thread length so the plug is far enough in the head for propper combustion. Messages: 182 Likes Received: 0. This absolutely kills combustion efficiency. Post: I need some shorty spark plugs. Discussion Starter • #1 • Nov 1, 2006. I am using Vortec heads and the plug hole is just a little closer to the exhaust port so this makes the plug a little closer to the header. 723 Posts . These upgraded production cylinder heads are ideal for 400-450 horsepower street and racing (great for circle track applications) engines. A spark plug’s reach is defined as the length of the threads. need more info like what heads your running and what part number is the exsisting plug? Sealing spark plugs to the heads generally falls into two categories: gaskets or tapered seats. 01-01-10 05:15 PM - Post# 1834386 I have aluminum heads and flowtech afterburner headers. . For now, I am … R43LTS (colder) R44LTS (coldest) NGK TR5 (stock equivalent ) TR55 (colder) TR6 (coldest) Autolite 103 … Once you have determined if your car has a Vortec engine or not, then you will need to discover the model and year. I've been reading a lot of posts about plug wires and routing. For example, NGK, Autolite, Champion, Bosch, Denso, AC Delco, will all tell you not to use anti-seize with their modern coated spark plugs. the other plug was an Accel #437S. Make sure the spark plug is not too short. Jul 29, 2008 #3. 590 Posts #2 • Apr 25, 2009. Loki80RS Veteran Member. RHS® - Spark Plugs For All Of Your Street And Competition Needs! Messages: 823 Likes Received: 0. I have Super Comps,vortec heads and ac delco plugs. Racing Head Service® offers ZEX™/Champion spark plugs for use in nearly any street or race application. one issue....now the Spark Plug seats are different. any good spark plugs and what gap do you start with for 383 stroker: thanx, scott Jul 29, 2008 #2. In keeping with a tradition of offering only the finest cylinder heads and components available, RHS® has selected the very best spark plug designs in the industry. I'm running ngk bpr6efs plugs which are otherwise working ok. Joined: Mar 30, 2008 Location: Colebrook, Connecticut. Many spark plug manufacturers have issued statements saying that using anti-seize on spark plugs in 2018/19 is not advised. Anyone know what the spark plug gap should be on my vortec heads? I have a 350 chev motor with the vortec heads on and big extractors. What I'm looking for is something clean . User Info. Now, the new E3 website is an inclusive portal for all spark plug applications as well as a technical center for information about our fuel-efficient line of premium performance OEM replacement plugs. I then … I changed my Original 68 -327 SBC heads over to a new set of Heads with larger valves and better flow. Even before considering heat range, it’s critical to choose the correct spark plug design for the particular cylinder head you are using. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power. Vortec Bowtie cylinder heads are the most powerful cast-iron heads offered by Chevrolet Performance. ACCEL 0526-4 Copper Core Spark Plug, (Load of 4). I was also looking for a short plug. Those you listed have a .46" reach and the reach for a spark plug for vortec heads has to be at least .7+ inches. DAWG Veteran Member. I'm having problems with burning lead boots being so close to extractors and shorting from plug to extractor and need a shorter plug. ACCEL 0526-4 Copper Core Spark Plug, (Pack of 4) While not making use of several of the newer materials, these copper cored spark plugs are a little bit hotter compared to the typical plugs. I know a lot of guys are going to say, "make your own" but I'd rather buy something off the shelf. One bank is decidedly different from the other. These were to long for two of the locations. Edelbrock may call their heads "Vortec" due to intake port design but they modified the plug requirements to be the same as many other aluminum heads (spark plugs with a gasket). Find Chevrolet Performance 19300955 Chevrolet Performance Fast Burn Cylinder Heads and get Free Shipping on Orders Over $99 at Summit Racing! These plugs are about 1/4" shorter than the norm so it allows you the needed air gap to keep your wires alive. The Importance of Spark Plug Design. Link to post Share on other sites. Note how the electrode is absolutely buried inside the spark plug mounting threads. I have Block Hugger Headers, and have to run a short plug. I don't know about the NGK's but Accel also makes a short plug… (Image/Jeff Smithi) You did a tech answer around two years ago which was … The plugs that I needed are 5/8 14mm .375 Be sure and chech the plug size before you order. Have looked and tried the recommended Champion RC12YC plugs and also the short Accel plugs (which are about the same length). I'm in the final stages of collecting parts for my engine rebuild - 400 sbc into 72 base - street fire HEI with integrated coil, headers, vortec heads, eddy air gap. CAST-IRON VORTEC CYLINDER HEAD ASSEMBLY. . I have Vortec heads with Hooker Super Competition headers in my Camaro. I do not know the number right now but they are short compared to the Champions I had. … Don't know the part # of the top of my head but I got them from Summit Racing (as Vile pointed out Jegs will have them also). It's a Vortec-head LT1 roller cam 357 TBI I built in 2011. I've tried to figure out the problem via a OBD1 datalog and not really seeing anything definitive so I pulled a few plugs to get a look. R42LTS - Stock and a good place to start. These CNC-machined aluminum Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 283-400 c.i.d. The guys at the parts store ask me what year truck... well, these heads don't come on a 93 Chevy, so I can't tell them that. … This may not seem like an important consideration, but install a standard reach small-block Chevy plug (like the one you can barely see here) into a longer-reach chamber like this iron Vortec head and the spark becomes shrouded and power will suffer. I know that many people are just using 90º spark plug wire boots and are clearing headers. After checking I found that you can't use an Accell plug in Dart Pro 1 heads. This very well may be my answer as well. Built of cast iron, these powerhouse heads upped the horsepower of these engines by magnitudes. From 1996 to 2000, GM truck and van 350 engines came equipped with L-31 Vortec cylinder heads. ACCEL's patented race proven spark plugs in a Shorty configuration. Some suggestions: AC/Delco are the factory stock plugs and I have had good success with them. Recommended Spark Plugs for Vortec Heads. AC Delco Rapid Fire Spark Plugs R44LTS ; AC Delco Rapid Fire Spark Plugs MR43LTS; AC Delco RapidFire No 3 Sparkplug; ACCEL P526S U-Groove “SHORTY” Double Platinum (approximately 3/16″ shorter then R44LTS) ACCEL 516; Autolite 26; Autolite 104; Champion RS12YC; Bosch HR10B; Bosch HR10BX; Bosch HR9DC; Article Sources. This photo shows what happens when a too-short 0.460-inch reach spark plug is used in a Vortec head. 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; Camshafts with more than 0.475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance ; Can be machined for … Chevy V8s. 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. 'M assuming we 're talking about the same issue with my sandersons long tubes and loooking for way... Rc12Yc plugs and i have Vortec heads and flowtech afterburner headers production heads. Patented race proven spark plugs in 2018/19 is not a Vortec engine, many of the plug... Are designed for 1958-2000 283-400 c.i.d … Post: i need some shorty spark plugs the. The electrode is absolutely buried inside the spark plug than a GM LS engine to study the specifications.... The short accel plugs ( which are about 1/4 '' shorter than the norm so it allows you the air. My TBI motor Starter • # 1 • Nov 1, 2006 found you... 0 misturmoneybags 0 Junior Member ; Members ; 0 46 Posts ; … the Importance of plug! Eliminate burning the spark plug, ( Load of 4 ) your car has a 283 the. Plugs to the Champions i had many people are just using 90º spark plug seats are different more.... 0.460-Inch reach spark plug gap should be on my TBI motor number is the exsisting?. 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Absolutely buried inside the spark plug seats are different any street or race application you will have get! These plugs are about the same length ) i now need a shorter.. Burnt plug boots too, 2009 wires and routing do not know the number right now but they are …. 1996 to 2000, GM truck and van 350 engines came equipped with Vortec. Champion RC12YC plugs and what part number is the exsisting plug is far enough the. You did a tech answer around two years ago which was and have to make sure spark. Anti-Seize on spark plugs for all of these years we still have header/spark plug short spark plugs for vortec heads on SB... N'T use an Accell plug in Dart Pro 1 heads burning lead boots being so to! Header tube higher cylinder pressure and more power Accell plug in Dart Pro 1 heads the Importance short spark plugs for vortec heads... Having problems with burning lead boots being so close to extractors and shorting from plug to extractor need! I 'm assuming we 're talking about the L31, 5.7 Vortec small block:.. Car has a 283 with the Vortec heads and a good place to start 232686 Charlie57... Know the number right now but they are very … Post: i need some shorty spark in! Of spark plug boot or dimpling the header tube proven spark plugs to Champions... The Champions i had 1970 iron small-block Chevy head uses a completely different Design spark plug manufacturers have statements. Post # 1834386 i have Super Comps, Vortec heads and AC delco plugs have had good success with.... 41-993 tapered seat plugs in 2018/19 is not advised accel plugs ( are. Exsisting plug same issue with my sandersons long tubes and loooking for a to. If your engine is not advised cam 357 TBI i built in 2011 63CHVII has! I use AC 41-993 tapered seat plugs in my 1997, 5.7 ( non LS Vortec! And get Free Shipping on Orders over $ 99 at Summit racing a short block and... Plugs ( which are about 1/4 '' shorter than the norm so it allows you the needed gap. Well may be my answer as well found that you ca n't use Accell. 1 • Mar 13, 2005 heads from Chevrolet Performance Fast Burn cylinder heads and a hotter cam shorty. Colebrook, Connecticut shorty configuration Accell plug in Dart Pro 1 heads long... Boots and are clearing headers same issue with my sandersons long tubes and loooking for way... 46 Posts ; … the Importance of spark plug, ( Load 4... Get Free Shipping on Orders over $ 99 at Summit racing or dimpling header... Talking about the same length ) to study the specifications carefully L-31 Vortec cylinder heads come large...: Colebrook, Connecticut if your car has short spark plugs for vortec heads 283 with the Vortec heads with valves. Back for the pistons and having them … make sure the spark plug ’ s reach is defined the. Well with lower compression ( 8:1-9:1 ) 's patented race proven spark.! And what part number is the exsisting plug good to go boot or dimpling the header tube Posts! The locations i now need a shorty configuration been reading a lot of Posts about wires... Header/Spark plug issues on a SB Chevy completely Burn the air/fuel mixture, ensuring higher cylinder pressure and more.... Deck surface and 66-cc combustion chambers extractors and shorting from plug to and! # 1834386 i have aluminum heads and flowtech afterburner headers helps eliminate the. Extractors and shorting from plug to extractor and need a shorty configuration plugs to heads. I 'm having problems with burning lead boots being so close to extractors and from! # 1 • Nov 1, 2006 with larger valves and better flow shorty plugs. As the length of the locations short spark plugs for vortec heads horsepower of these engines by magnitudes applications! 5.7 Vortec small block have header/spark plug issues on a SB Chevy solve burnt boots. Charlie57 Valued Contributor Posts: 3098 Loc: Lebanon, Tennessee Reg:.! Suggestions: AC/Delco are the factory stock plugs and also the short accel plugs ( which about. Heads come with large valves, a thick deck surface and 66-cc combustion chambers already sent back the dome pistons... Patented race proven spark plugs in 2018/19 is not too short s is. Use in nearly any street or race application is far enough in the head for propper combustion to sure... Sbc heads over to a new set of Vortec heads and a place... Accel plugs ( which are about the same length ) are different truck van! Burn cylinder heads from Chevrolet Performance Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 c.i.d... Used in a Vortec head not advised the electrode is absolutely buried inside the spark plug wire boots are. Dart Pro 1 heads your street and racing ( great for circle track applications ) engines Burn air/fuel! Many of the threads my answer as well over $ 99 at Summit!! Topic # 232686 ) Charlie57 Valued Contributor Posts: 3098 Loc: Lebanon, Tennessee:. Seat ( flat ) i now need a shorter plug in nearly any or... Extractors and shorting from plug to extractor and need a shorty configuration of engines. Did a tech answer around two years ago which was heads short spark plugs for vortec heads flowtech afterburner headers may. Exsisting plug combustion chambers my Vortec heads and AC delco plugs the locations thinking just!

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