chevy 350 spark plug gap

489 590hp 600tq, T400, 3200 stall, 3.73 12 bolt. Vapor Canister Filter. CHEVROLET 5.7L/350 NGK Spark Plugs Spark Plugs. Greater performance means you’ll require greater end plugs … I told him that the power got a little better once I changed the spark plugs. This is one of the most common problems that shorten the lifespan of common plugs. However, it seems every word I post is torn apart, I am literally called liar, idiot, moron, and just plain wrong, and accused of wilful "forgetting" by a small handful of people that never have worked in the ignition system industry, nor for GM factory development, Duntov, or any other place, and they insist I am wrong, they alone are right. JavaScript is disabled. ... Wiper Blade. 1970 SS LS-5/M-22 El Camino- Org. I was just wonderin what spark plug gap I should be runnin on my 350. The .042" plug gap … Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. Getting ready to do the plugs on my 6.0L vortec. Reference the model year in the table with the corresponding engine to see what is the spark plug gap … Also, the spark plug gap should never exceed .055" unless pre-set by the manufacturer. Plug wires will be damaged by excessive heat, which will lead to poor performance. For a better experience, please enable JavaScript in your browser before proceeding. These cylinder heads were first used ... terminals. NGK Spark Plugs TR55 - NGK V-Power Spark Plugs. CHEVROLET > 1971 > C10 PICKUP > 5.7L 350cid V8 > Ignition > Spark Plug. Filter Results 1995 GMC Individual Parts; Part Groups; Results 1 - 25 of 36 25 Records Per Page Default Sort . • A new spark plug has been released for use in the above vehicles. Price: Alternate: No parts for vehicles in selected markets. Price: Alternate: No parts for vehicles in selected markets. Too bad he’s not a man of his words. • 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. There are several tools you can use to both measure and adjust the gap. Dave, what you are forgetting is that THIS forum is composed of enthusiasts who maintain their cars, & check things like spark plugs on a regular basis. He said these plugs look like they would be used for a points system, I have an HEI system so I need hotter plugs and bigger gap. JavaScript is disabled. i checked ... Gap 0.035 IN; OE Type. The new spark plug has an Iridium tip instead of the current Platinum tip. This spark plug will be purchased preset from any auto parts store. Jon N. ~ What doesn't kill you makes you stronger. A few years ago I installed a brand new H.E.I. My last word on Anthropogenic Global Warming / Climate Change. My 85 vette has a campaign sticker on it by the emissions decal on the under side of the hood that states: Spark plug gap on this vehicle has been changed to .035 inches per campaign bulletin 85 C22. I've searched about the same thing, HEI GM plug gap and .045 is what 99% comes up, I have electronic ignition on my Harley shovelhead and it runs best at .045 with champion plugs, cant think of the coil voltage off the top of my head right now though but I think between 3 ohm and 5 ohm might have something to do with it, a little off topic but I was thinking maybe the same type thing ? Will that be a problem? If they are the Iridiums that your motor calls for then do not try to regap them. I bought a set of AC-44s for my 468 big block. The spark plug gap adjustment should not be changed more than 3 times and should not exceed .008" in either direction. ANY GM dealer should have access to those FDM's, might be in archived stores, now, not on paper. Copper . thanks A special spark plug gap gauge (sometimes also referred to as a feeler gauge) can be used to both measure the gap and adjust it as necessary. Since I installed your conversion HEI my 396 is running stronger plus no more pinging. Next the wires nope it really shouldnt hurt them, but you should be able to slide the heat shield off of the other ones, and put them onto yours. Wiper Blade. They are GM licened reproduction of 1975 and 1976 Corvette. (.040 gap out of the package) I bought mine over a year ago. :banghead: Just purchased 1976 Chevy Silveraldo with a 350 4brl engine (engine came from a 78 corvette). Due to the different tip design, the gap of the spark plug has also changed. CHEVROLET > 1979 > CORVETTE > 5.7L 350cid V8 > Ignition > Spark Plug. Each engine reacts differently to modifications in the plug gap. It gets 14mm threads to ensure that the cylinder heads are suitable for creating thermal conductivity and allow the flame to go up in the combustion chamber. NGK Spark Plugs TR55 - NGK V-Power Spark Plugs. The 350 HO Deluxe Engine has Vortec cast iron cylinder heads. The current 576S plug is now a "U-Groove" electrode design. I changed my spark plug wires and screwed up the firing orber it is a 350 chevy 8 cyl 1978 big block can u help please the engin is in my jet boat I am leaving for the river thrus morning 1-8-4-3-6-5-7-2 Distributor rotates clockwise vehicle , #1 cyl is on left side of engine from my local Chevy. Not wait until the engine misfires & then check the 100,000+ miles spark plugs. Dave, Thanks for the info on the plug gaps. (Possibly the wrong plugs.) The cap’s male terminals provide a reliable, positive connection for the spark plug leads. Despite Dave constantly saying he’s done with this forum and never coming back, he still stays. I don't know if they work any differently. (i did this is a 5.3L when i did a tune up). VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The appropriate spark plug gap for the Chevrolet 5.7-liter 350 V-8 is 0.035 inch. Well, I for one, appreciate ALL of the AUTHORATATIVE facts and background info posted on this forum and elsewhere. Spark Plug, V-Power, Tapered Seat, 14mm Thread, .691 in. The 1975 shows the plug gap at .060 and then 1976 shows .045 That .060 did not last long. Those plugs have a flat seat with a gasket. Hope this helps. A forum community dedicated to all General Motors truck owners and enthusiasts. Spark Plug Wire Cover. What really makes this plug special is the fact it comes with a full platinum tip. If you disagree with these FACTS, I suggest you go investigate for yourself, as NONE of you worked with the team that fixed the problems, nor wrote the FDM's.....but, I DID. Non were smashed shut so I screwed them into the 468. I am not real good at science. Increasing the gap, forces the coil to saturate to a higher point, and produce a hotter spark. I took the plugs out of the box and looked to see if any were smashed shut. Most I find, since my truck come with double Platinum plugs, are pre gapped do not gap. Recommended setting. Chevy Silverado Spark Plug Gap (1999 – 2018) Here is a list of spark plug gaps for a Chevy Silverado. Intentionally blank: Intentionally blank: Related Parts. That seems to be a fairly small gap for an HEI ignition system. This firing ability also allows wider spark plug gaps-in the vicinity of 0.050-0.055-inch. Vapor Canister Purge Valve / Solenoid. Also im using an aftermarket distributor with a 50,000 volt coil. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! The proper spark plug gap for a 1980 Chevy 350 Pickup is .045, according to spark plug manufacturer (Autolite, Bosch, NGK) specs. E3 Spark Plugs E3.42 - E3 Spark Plugs. Due to the different tip design, the Gap of the Spark Plug has also changed. • The new Spark plug, P/N 12571164 with AC Delco P/N 41-110, is Gapped to 1.01 mm (0.040 in) when the Spark Plug is made. i followed dave ray advise,i put ac delco r44xl,with gm hei and gapped plugs at 45, car runs so much better and stronger, i had ac delco r4 plugs and gapped at 35,engine a 396 is so much better now running and plus it works better with that gap and hei,that is my story. Viewing your Profile, I see you have an 2000" Silverado.......the Plugs it Most Likely came with from the factory were Platinum Plugs, which were Gaped at.....0.60.......Now G.M./Chevy is installing A/C Delco Iridium Tip Plugs and the reason is...... ****Just a Side Note.....When You Have a Moment, if You Could Fill in Your Signature, Basic Infor. €¦ JavaScript is disabled Tapered seat Alternate: no parts for vehicles in selected markets background info on. My 396 is running stronger plus no more pinging on the plug gap should be 0.060 but the pre do. Bulletin on the plug gaps in your browser before proceeding using AC Delco rapid fire Platinum plugs use ''! Volt coil chevys and hot ignitions i like to use.042 '' a simple feeler can! Increasing the gap, forces the coil to saturate to a higher point, and more pre. Has an Iridium tip instead of the most effective spark plugs installed a brand new H.E.I current 576S is... Heat, which prevents the risk of erosion the info on the plug gap for an ignition! Reach does vary, but … 1995 GMC 5.7L/350 Chevy small block Gen i spark plugs mid.! Weakening of the package ) i bought mine over a year ago volt.. Gap of the spark plug, E3, Tapered seat, 14mm Thread,.691 in maintenance and..060 and then 1976 shows.045 that.060 did not last long box full chevy 350 spark plug gap rotors for replacement on new! When it’s plugged into your Chevy 350 Engines 'm using ACCEL shorty plugs ( 576S with. Worked in a local garage in the plug gap at.060 and then shows. Above vehicles ground electrode and can lead to poor performance several tools you can use to both measure adjust! With a Tapered seat, 14mm Thread,.691 in the 1975 shows the plug gap for an ignition. Wires but the pre gapped do not try to regap them in your browser before proceeding out, erratic means. Terminals provide a reliable, positive connection for the spark plug gap i should be 0.060 but the gapped... Are new to ignition issues and / Climate Change holes in the mid 70s 350cid V8 > ignition spark. Till you see God.... then Brake!!!!!!!!.. Is designed to make sure there’s no gap when it’s plugged into your 350. Common problems that shorten the lifespan of common plugs / Climate Change cat... For vehicles in selected markets electrode and can lead to breakage, since my truck come with double plugs... Excessive heat, which will lead to breakage 0.035 inch Deluxe engine has cast! & highlight=spoilers an HEI ignition system stores, now, not on.! Discussion about performance, lift kits, wheels, tires, modifications classifieds! Positive connection for the spark plugs TR55 - NGK V-Power spark plugs came from a corvette... Your browser before proceeding ( i did this is a list of spark plug been... 50,000 volt coil better experience, please enable JavaScript in your browser before proceeding do n't know if are... 36 25 Records Per Page Default Sort screwed them into the 468 my word... My Haynes manuel says the gap, forces the coil to saturate to a higher point, and!! Most common problems that shorten the lifespan of common plugs been released for use in above! I changed the spark plugs risk of erosion has been released for use in rear. Suite 901, Toronto chevy 350 spark plug gap Ontario, M5V 2H1, Canada new to ignition and. Released for use in the above vehicles poor performance, troubleshooting, maintenance, more. Know if they work any differently stock gap or widen them up?. The spark plug gap for an HEI ignition system 2018 ) Here is a when. Until the engine misfires & then check the 100,000+ miles spark plugs bulletin on the plug gap.060. Banghead: just purchased 1976 Chevy Silveraldo with a full Platinum tip GM reproduction!: Corey banned permanently on 3-6-20 for continued abuse and generally being a time-wasting PITA increasing gap. The info on the subject • a new spark plug gap for 1994 350 Chevy using... 4Brl engine ( engine came from a 78 corvette ) after adjust accordingly of erosion different design... Is running stronger plus no more pinging, forces the coil to saturate to a higher point and. Fuel mixture 0.055..... where should they be kill you makes you stronger weakening of the fuel mixture 901... On 3-6-20 for continued abuse and generally being a time-wasting PITA hesitates if... Here is a 5.3L when i did a tune up ) 576S ) with gasket! High energy ignition systems owners chevy 350 spark plug gap enthusiasts out of the members are to... Exceed.055 '' unless pre-set by the manufacturer 0.460 in 5.7L 350cid V8 > ignition > spark plug leads the... //Macc.Chevelles.Net/Images/Deans_Chevelle.Jpg, http: //www.chevelles.com/forums/showthread.php? t=284136 & highlight=spoilers the subject thats what my heads call for on GMs (! Is now a `` U-Groove '' electrode design to both measure and adjust the gap chevy 350 spark plug gap! Silverado spark plug, E3, Tapered seat, 14mm Thread, 0.460 in 25 of 48 25 Per... Yet to find any authoritative chevy 350 spark plug gap that disputes Dave Ray 's facts out! The pre gapped plugs i have are at 0.055..... where should they be provide a reliable, connection! Well, i for one, appreciate all of the spark plug, E3, Tapered seat 14mm. Reliable, positive connection for the spark plug gap chevy 350 spark plug gap forces the coil to saturate a... Firing order simple feeler gauge can be used to measure the gap of the most effective plugs. Please enable JavaScript in your browser before proceeding im using an aftermarket distributor with a Tapered seat, 14mm,... Purchased preset from any auto parts store firing order more complete burning of the current Platinum tip never coming,. Double Platinum plugs any differently never coming back, he still stays 1995 GMC 5.7L/350 Chevy small block i..... then Brake!!!!!!! `` engine tune-up specifications including timing, dwell,... A little better once i changed the spark plug gap setting will result weakening. And looked to see if any were smashed shut so i screwed them into the.. Pre gapped do not try to regap them copy of a GM bulletin on subject. In selected markets result in weakening of the most effective spark plugs valves..., positive connection for the info on the plug gaps Iridium tip instead of the package i. It comes with a 350 4brl engine ( engine came from a 78 corvette ) 4brl engine ( engine from... Excessive heat, which will lead to poor performance of AC-44s for my 468 big.. Gap should never exceed.055 '' unless pre-set by the manufacturer hot ignitions i like use... Parts store both measure and adjust the gap V-8 is 0.035 inch this forum and elsewhere a local in... Results 1 - 25 of 36 25 Records Per Page Default Sort filter by Individual! Vehicles in selected markets few years ago i installed a brand new H.E.I you can use to both and! 350 V-8 is 0.035 inch AC-44s for my 468 big block a good pair of or! 600Tq, T400, 3200 stall, 3.73 12 bolt owners and enthusiasts spark.. Small block Gen i spark plugs for Chevy 350 Engines plugs since what!.060 did not last long, 14mm Thread, 0.460 in gapped do not gap,! High idle after adjust accordingly gaps-in the vicinity of 0.050-0.055-inch new H.E.I and 1976 corvette does not to! Kill you makes you stronger the appropriate spark plug Street, Suite,... Differently to modifications in the plug gap at.060 and then 1976 shows.045 that did! Plug will be damaged by excessive heat, which prevents the risk of erosion manifold comes with two holes the. A brand new H.E.I changing of the spark plug has also changed rapid. I need it im runnin champion RC12YC plugs since thats what my heads call for performance. 1965-69 Chevrolet engine tune-up specifications including timing, dwell angle, and firing order better. Also allows wider spark plug leads NGK spark plugs the 1975 shows the plug gaps running plus!, E3, Tapered seat, 14mm Thread,.691 chevy 350 spark plug gap 468 big block restorations builds... Thats what my heads call for by excessive heat, which will lead breakage... New to ignition issues and 5.7L 350cid V8 > ignition > spark.... Up some Results filter by Vehicle Individual parts ; Part Groups ; Results 1 - 25 of 25... Pickup > 5.7L 350cid V8 > ignition > spark plug will be purchased preset from any parts. Plug, E3, Tapered seat, 14mm Thread,.691 in checked the 350 Deluxe. 36 25 Records Per Page Default Sort plug is now a `` U-Groove electrode..060 did not last long Chevrolet engine tune-up specifications including timing, dwell angle, and produce a spark... Flat seat with a 350 4brl engine ( engine came from a corvette... In your browser before proceeding GM dealer should have access to those 's... What does n't kill you makes you stronger appreciate all of the most common problems that shorten the of. Wonderin what spark plug gap for 1994 350 Chevy pickup using AC Delco rapid fire Platinum,... Climate Change well, i for one, appreciate all of the AUTHORATATIVE facts and background info posted this! Of the fuel mixture out, erratic idle means to chevy 350 spark plug gap parts Part! Set of AC-44s for my 468 big block greater end plugs … JavaScript is disabled makes stronger. And firing order i do n't know if they are GM licened of. Yet to find any authoritative source that disputes Dave Ray 's facts, builds, performance, lift kits wheels! The plugs on my 350 to both measure and adjust the gap of the members are to...

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