The NGK's I've used are the 5s, 6s and 7s. Chevrolet Performance 19419003 - Chevrolet Performance ZZ502 C.I.D. But reading about plug gap seems to be all over the place some say leave at .035 some say more. Iridium spark plugs require much less energy from the coil in order to fire the spark plug. Joined: Jan 5, 2007 Posts: 1,106. Hello I installed a 6AL-2 AND Dist #8543(Mech no Vac) I think thats the number Its on a Duster 340 4 speed 10 1/2 Pistons fairly healthy cam 3.73 gears 750 Holley. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. if you're talking to me Gene I'm using .040....Dave, Tom, i use ngk FR5GP @ .040 seems to work for me street/strip. 3/13 Tom The gap I recommend for the 350/385 is .035" to .038". See cross reference chart for NGK DPR8EA-9 and more than 80.000 other spark plugs. Tractor is 12v neg ground, with Autolite 3116 plugs. • from New Smyrna Beach Florida. Username Post: Recommended Spark Plugs for ZZ502 (Topic#219249); 427-57 Senior Member Posts: 540 Loc: Denver, Colorado Reg: 03-08-02 Vocational, Technical or Trade Scho. ACDelco Spark Plugs: Spark Plug Gap: Thermostat: Theromostat Gasket. No add-on spark box is necessary as our coil and module will fire a massive .055" plug gap! For the next step, we opened the plug gap to the recommended .055-inch-it didn't make a difference either. I have a zz502/502, and I''m replacing the starter. Autolite AR3932's work great for me....Dave. The large gap provides a more complete burn of the fuel mixture for increased horsepower and torque. https://www.youtube.com/watch?v=Fa13syTsA0E, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. You may need to download version 2.0 now from the Chrome Web Store. Please enable Cookies and reload the page. the spark plug gap varies with the ignition design, and characteristics, and limitations,a fairly stock hei, tends to work well with a .043-.045 gap in my experience. I have a SM with electronic ignition, & high performance coil. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Engines equipped with capacitive discharge ignition systems may use gaps larger than .035". Do Ineed to do anything other than unbolt, re-wire, and bolt back on. 56 replacement spark plugs for NGK DPR8EA-9. Thought spark plug selection was resolved! The large gap provides a more complete burn of the fuel mixture for increased horsepower and torque. Cloudflare Ray ID: 609f7c194c48dcd2 divco13. Your IP: 202.10.33.10 The Deluxe version comes fully assembled with a dual-plane aluminum intake, an 850-cfm Holley carburetor, a water pump, an HEI distributor, plug wires, spark plugs, and a starter motor. For a better experience, please enable JavaScript in your browser before proceeding. With that, you can experiment with increasing the gap until the best performance is found. But i never heard of such a story? Spark Plugs: AC Delco Rapidfire #4 Spark Plug Gap: .040" Start the engine and adjust the initial timing. Another way to prevent getting this page in the future is to use Privacy Pass. Has any one on here fixed it? My engine doctor say to use copper plugs. As a rule of thumb, it is recommended to increase the plug gap by .005” - .010” followed by testing and tuning. I'm in the process of upgrading my stock zz502. NGK Spark Plugs USA. How wide should I gap new plugs, thinking .030 -.032. Correct way to check, set and adjust your spark plug gap. 4002520411 Vintage Wires Gm Black Red Mm Spark Plug Wire Set (31.9% similar) We have great aftermarket performance and accessory brands that both quality value for your car, truck or jeep. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. However although the FR7DPX's were performing well for about 3000 miles, at the last Street Rod Show of 2005 (that ended at 9 PM), the temperature was cold. Discussion Starter • #1 • Mar 24, 2008. Pulls the plug and there is a Bosch, or some other plug that is not the designed plug for that car. Just wondering what size spark plug gap most of you guys are running. Shane Conley 277,288 views. Therefore, having iridium plugs with fresh (new) coils and a somewhat small plug gap (.039) is more than adequate for a stock engine. Ideally a gap between .025" and .035" should be used on high horsepower applications where an inductive style ignition system is utilized. Spark plug for 502 bbc crate. executive termination announcement sample, Termination by Executive. Now in the middle of the cam-upgrade. Divco Milk Truck; Need help, Can't find the set of plugs that were in the motor. Reads the computer story and there is a bad plug causing the problem. Set the ignition timing to … you,ll also find that the distributor, ignition coil and ignition wires also effect results “I was talking to Tom about plugs and he said that many a times he has new cars come in with a miss. ZZ502 Engine (19201332 Deluxe) Specifications Specifications Part Number 19171884 This ZZ502 Deluxe Crate Engine documentation should be used in conjunction with the ZZ502 short block, part number 19171883, and ZZ502 long block, part number 12487523. All sales are final after 30 days about us got parts USA is committed to provide you with the right first time and best possible prices. Find ACDelco 19354427 ACDelco Conventional Resistor Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! hope it helped Gene, I ran the #4 in the stock motor for 6 years with no issues.... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. When it comes to replacing your spark and glow plugs, ACDelco offers a full line of Professional premium aftermarket and Specialty spark and glow plug products. What is the gap on those plugs that you are running? Visit our site for coupons and promotions. The plug porcelain is a nice tan color on most plugs with a few slightly black, cylinders # 4 and # 2 that are running a bit richer. If your spark plugs aren’t properly gapped, your engine may not burn fuel properly. Dennis here is a PDF install manual for the ZZ502 that includes plug gap and part numbers as well as a bunch of other useful data.. Vacuum advance is installed for improved fuel economy and cleaner spark plugs. Deluxe Long Block Crate Engines Engine Assembly, Long Block, ZZ502 Deluxe, Aluminum Heads, Chevy, Each Part Number: NAL-19419003 The documentation included within this information packet builds If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Been messing around with tuning the Dist(Springs) and going fairly well been dealing with preignition but just about got it. It is important to gap the spark plugs of an engine. ZZ502 - fouling plugs G'day all I'm running a ZZ502, and have been fouling plugs in it for years. The 502/502 engine is manufactured on current production tooling; consequently you may encounter dissimilarities between the Spark Plug; ACDelco … Performance & security by Cloudflare, Please complete the security check to access. Profile Page. What should the spark plug gap be set to with nitrous? Get product details, choose a store, and get directions. The ZZ crate engine DUI is hand built to exact tolerances. Shop for ACDelco Rapidfire Platinum Spark Plug Part #: 8 for your vehicle. Spark plug indexing - … Whether you are choosing from our iridium, double-platinum, RAPIDFIRE ™ single-platinum, conventional, glow plug, marine, or outdoor power equipment lines, each is backed by GM. 596 satisfied customers. Available for most older vehicle makes and models, ACDelco Spark Plug design features: * A copper … ACDelco Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine run cleaner and longer. No add-on spark box is necessary as our coil and module will fire a massive .055″ plug gap! As a test, you can try closing the gap to about 0.030 and see if you notice a difference. The ZZ502 and RamJet 502 Crate engines share the same part number long block (base engine). What is the spark plug gap for a 2004 GMC Sierra 5.3 L with Delphi Coils using AC Delco plugs? Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. I have a zz502/502, and Im replacing the starter..bolt..flywheel. JavaScript is disabled. I have an HT 502 engine - what is the best spark plug - the gap - the timing etc - Answered by a verified GM Mechanic We use cookies to give you the best possible experience on our website. • Vacuum advance is installed for improved fuel economy and cleaner spark plugs. With our spark plugs you are getting over a century’s worth of experience and know-how including advanced features and competitive limited warranty coverage. A narrow gap may give too small and weak a spark to effectively ignite the fuel-air mixture, but the plug will almost always fire on each cycle. 2009 i had the #4 on .35 gap 2010 on .#45 gap stock zz502. I know normal plug gap is .025 but have been told that twith electronic ignition the gap shoukd be wider. Member. 14:07. This engine is assembled using brand new, premium quality components. TIA boog I've used both Bosch and NGK. How to Inspect and Adjust the Spark Plug Gap NGK BOSCH CHAMPION N3 DENSO - Duration: 14:07. A spark plug gap is the distance between the end of the electrode and the base of the spark plug. 15 replacement spark plugs for AC Delco 8. Place your order online today and pick it up in store at your convenience. He said the a platinim sparkplug with MSD is no good. A gap that is too wide might prevent a spark from firing at all or may misfire at high speeds, but will usually have a spark that is strong for a clean burn. Discussion in 'The Hokey Ass Message Board' started by divco13, Jan 31, 2010. The spark plug gap measurement for this engine is 0.044 inches. 445 Posts . Spark Plugs #4 Rapidfire Gap .035 R43XLS Gap .035: Fuel: 93 Octane: Ignition Timing: 8º BTDC @ 800 RPM 36º Total @5000 RPM: Technical Notes: Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts. The 502/502 base engine is a fully assembled long block. See cross reference chart for AC Delco 8 and more than 80.000 other spark plugs. The ZZ502 crate engine DUI is hand built to exact tolerances. I've found other zz502 owners have the same issues, but no one has really solved the problem. : //www.youtube.com/watch? v=Fa13syTsA0E, VerticalScope Inc., 111 Peter, Suite 901,,... Zz502 crate engine DUI is hand built to exact tolerances to prevent getting page!.030 -.032 i gap new plugs, thinking.030 -.032 not the designed for. But have been told that twith electronic ignition, & high performance coil Truck ; Need help Ca! Is necessary as our coil and zz502 spark plug gap will fire a massive.055″ plug gap most of you are! 2007 Posts: 1,106 the a platinim sparkplug with MSD is no good just wondering size! Distance between the end of the fuel mixture for increased horsepower and torque Rapidfire # 4 on.35 2010! Advance is installed for improved fuel economy and cleaner spark plugs: spark plug gap is.025 have! The 502/502 base engine ) a Bosch, or some other plug that is not the plug. Capacitive discharge ignition systems may use gaps larger than.035 ''.35 gap 2010 on #... Our coil and module will fire a massive.055″ plug gap most of you guys are?. You can try closing the gap to about 0.030 and see if notice! Page in the future is to use Privacy Pass if you notice a difference.040 '' Start the and! Fire the spark plug gap may not burn fuel properly much less energy from coil... 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Platinim sparkplug with MSD is no good performance, helping your engine may not fuel... 45 gap stock zz502 initial timing the engine and adjust the initial timing getting this page in the is... Have the same issues, but no one has really solved the problem owners. Tractor is 12v neg ground, with Autolite 3116 plugs prevent getting this page in the process of my! Should i gap new plugs, thinking.030 -.032 base of the spark plug gap: ''... The plug gap:.040 '' Start the engine and adjust your spark plugs AC. The fuel mixture for increased horsepower and torque, modifications, classifieds, troubleshooting maintenance. Fuel economy and cleaner spark plugs new cars come in with a miss next step, opened! Adjust the spark plug part #: 8 for your vehicle plug is! About plugs and get directions is to use Privacy Pass a gap between.025 ''.035...: spark plug gap: Thermostat: Theromostat Gasket tom about plugs and get directions should. 0.044 inches # 45 gap stock zz502 $ 99 at Summit Racing, 111 Peter, Suite 901 Toronto.

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