Gm hei coil specs. Get step-by-step instructions and tips from experts.

Gm hei coil specs The ignition coil fires when the module shuts off voltage to the coil primary. Free shipping when your order includes this part. The distributor, PN 8366, is a drop-in replacement for GM V8s using the small cap distributor with a dual connector coil found in cars from 1987-1993 and trucks from 1987-1995. The vacuum advance canister rod, the part that actually does the pulling, is attached to the pickup coil in the distributor. The current control circuit protects against coil over heating. Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. It is impossible to list every coil combination and it is recommended to check with the coil manufacturer Mar 2, 2023 · Remote HEI Coil for Select 1982-1997 Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac Models with External Mounted Coil Delivers more voltage for faster starting and more efficient combustion. It was introduced in limited numbers in 1974 and was used on all GM vehicles from 1975 through the mid-1980s. I would apppreciate a part number, an application or barring that the ohm reading of the primary. This coil is a direct re­placement of the stock coil and offers increased spark energy when used with the MSD HEI Module, PN 83645. HEI owners now have a choice to replace their stock coil with the MSD High Energy Unitized Coil for GM HEI Distributors. Buy HEI IGNITION COIL - NGK 48604 online from NAPA Auto Parts Stores. MSD answers the need for a strong, accurate and high performance HEI with our Pro MSD Pro-Billet Chevrolet HEI Distributor, MSD-8365 is an HEI coil-on-cap magnetic pickup performance distributor for Chevy V8 engines and comes with HEI/post style terminals and a red cap. If the Duraspark box ever goes out you can run the distributor with a 4 pin GM HEI with no external ballast resistor. JEGS 555-40062 GM HEI High-Output Module Features: Includes #8-32 Machine Screw, 14-18 Gauge Female Spade Connector and White Thermal Grease Pack Easy Plug-N-Play Installation Digital Output Maximum Output Voltage: 400 mJ Spark Energy w/3. Our performance HEI distributor can be used as a replacement for a stock HEI unit, or as a retrofit from a points based ignition. It is set up for easy swapping of the HEI module should a problem ever occur. Batt. Using upgraded components, the HEAT produces high output for stock and MSD applications plus has a built-in rev limiter that is more accurate and easier to set with the engine running. Also, no voltage resistor was needed to keep the points from burning. is long time without running. @ 12. ACCEL Performance Replacement Distributors are the perfect choice for your daily driver or street machine. This coil is a direct re­placement of the stock coil and offers increased spark energy when used with the MSD HEI Module, PN 83647. With more than 277 ignition coil part numbers and 90% VIO coverage, NGK is The Ignition Specialist™. MSD is claiming 42000 volts max and other perks, you bring up a good point thought. MSD Blaster coils give your GM maximum voltage output! With windings and construction similar to MSD's Blaster 2 coils, these have an increased turns ratio, plus lower primary resistance than your stock coils. A. Sep 14, 2004 · Performance Ignition Module The high performance HEI module provides your plugs with more spark over the stock module. Item Information • Direct performance replacement for GM HEI coil-in-cap distributors • 70:1 turns ratio & lower primary resistance produce high voltage output • Full power sparks to 9,000 RPM when used with 8364 MSD HEI Module • Recommended for use with MSD HEI Module PN 8364 • CARB E. Direct replacement of the stock coil and offers increased spark energy when used with the MSD HEI Module, PN 83647. Too large of a gap will also put added pressure on the secondary side of the ignition system, resulting in shortening the life of the components. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring May 16, 2022 · GM Coil Specs: Turns ratio: 100:1 Primary resistance: . All new components Oct 4, 2010 · An externally mounted coil helps remove some of the heat load but the only sure way to run high KV and keep it reliable is an add on module like the MSD. This coil is a direct replacement of the stock coil and offers increased spark energy when used with the MSD HEI Module, PN 83647. Get the Best Performance with JEGS HEI Distributor for Small Block and Big Block Chevy 40042 parts at JEGS. Note: Instead of the plug tester called for in the procedure, just pull a plug reconnect the plug wire and ground the plug against the engine. 95. Electronic ign. 5 AMPS Dwell Control Maximum Current: 7. Coils usually fail slowly, giving warning when hot. B. 2 at the GM late-model performance enthusiasts will be happy to see this Pro-Billet Distributor. For drag racing and “short duration” applications, the Pro Power Coil, PN 8201. The "BATT" terminal is for 12 volt hook-up and the "TACH" terminal is for connecting Chevy Forums FREE technical assistance for your restoration and repair. Connect an ohmmeter to each terminal of the pick-up coil connector or wire and ground (one terminal at a time). MSD 8362 Street Fire Chevy V8 GM HEI Distributor made by MSD, for as low as $224. GM HEI (internal coil) 1974-1975 6k-30k ohms secondary GM HEI (internal coil) 1976-1979 Infinity GM HEI (internal coil) 1980- (see text) The resistance between the primary terminals of the coil ACCEL Performance Distributors are the perfect choice for your daily driver or street machine, We know the importance of a good quality distributor that doesn't break the bank. #D-57-21)* Our performance ignition modules are direct replacements for popular GM and Ford electronic distributors. Oct 7, 2025 · Choosing the right coil for an HEI distributor can impact ignition performance across various Chevy and GM V8 configurations. They feature a 65,000 V coil, medium weight advance springs, and an aluminum housing. I know I need to run a full 12V to this "new" distributor. Instead of breaker points and condenser, a control module, and magnetic pickup are Feb 1, 2013 · Add to this its integrated ignition coil in the distributor cap, and the HEI is the go-to distributor for basic GM street engines and an easy replacement for buggy-whip-era points distributors. Use double ended coils (eg mitsubishi wasted spark type, they're limited to about 7A each with the proper driver unit ), wire the secondaries in series, primaries in parallel. The new digital add ons are best for this. 2 ohm). E. 5 Amp MSD Digital Performance Module is unified with the coil for the most precise timing and dwell control Extraordinary coil saturation means optimum power at high RPMs Coil drive currents are 50 Buy Delco HEI Distributor (GM V8) - SME 1854841 online from NAPA Auto Parts Stores. I believe this is done without a ballast resister as the GM The MSD HEI Coil is designed for use with the MSD High Output HEI Module, PN 8364. Get deals on automotive parts, truck parts and more. These modern takes on a Jan 27, 2010 · The ignition coil is housed in the distributor cap, which makes the GM HEI distributor a very efficient, self-contained unit. Ignition Module This all new Heat HEI Module supersedes the current PN 83645. Mar 2, 2023 · Remote HEI Coil for Select 1982-1997 Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac Models with External Mounted Coil Delivers more voltage for faster starting and more efficient combustion. A GM HEI module does not rely on slow thermal coefficients. Information about e-core and canister coils used in HEI upgrades, including GM 1955, 1956, 1957 Chevy ignition upgrades. This chart lists the compatibility of various coils with MSD Ignition Controls. Compatible with GM or A-Team's HEI distributor, it ensures seamless integration Durable Construction: Crafted from high-strength polymer, the distributor cap is reinforced with It is recommended to have the distributor out of the vehicle. 3's and 2. This means that even a short drive into town could require well over a million sparks. The Blasters will work with stock GM coil ignition systems, as well as MSD-equipped cars and trucks. The V-6 and V-8 engines got the ignition coil built into the dis-tributor cap, while usually—but not always—the inline 4 and 6 cylinder engines received a separate, external ignition coil. Accel HEI Super Coils are compatible with both original HEI ignition systems and later model computer-controlled HEI systems. Nov 21, 2004 · Specialized high-temperature epoxy resists shock and vibration and still increases thermal conductivity. Feb 21, 2011 · PERTRONIX FLAME-THROWER COILS The ignition coil of your engine is responsible for producing a high voltage spark eight times (on a V-8) for every revolution of the camshaft. The aftermarket is now building HEI-style distributors for a wide variety of engine families, in-cluding Holden, Ford and AMC engines, as well as several GM Jun 26, 2019 · The GM Vortec engines have the ignition coil and module next to each other on a heat sink, but I don't have a photo of how they're oriented. With the MSD HEI Distributor Upgrade Kit, you can improve the performance of your early model GM HEI distributor A rotor, cap, coil, module, and dust cover are included in the complete package The 7. A more efficient coil design can have the same spark output with lower primary current. Jul 25, 2020 · The GM HEI distributor was a wonder of the time. That's 15,000 Volts higher than the OE coil, which results in more completely burned fuel and better all-around performance. Shop Now at the Guaranteed Lowest Price! Mar 25, 2020 · About this item Precision Engineered Kit: The A-Team Performance HEI Distributor 8-Cylinder Tune-Up Kit, featuring a 65,000-volt ignition coil, offers precision-engineered components for enhanced automotive performance. Save on Accel High Energy Ignition Coil for GM HEI - 1973-1991 140003 at Advance Auto Parts. com 901-396-5782 GM STREET/STRIP D. The Racing Coil Kits fit all GM V8, 6 cylinder and 4 cylinder HEI/DUI distributors. Jun 10, 2012 · An HEI is pretty self-contained. Fits Buick V6 and V8, Oldsmobile V8, Pontiac V8 and 1981-91 Corvette This high performance HEI module provides your plugs with more spark over the stock module. An OEM style module is included along with a high-quality gear and cap with brass terminals for many miles of trouble HEI Distributor Small Block and Big Block Chevy Melonized Steel Gear Cast Aluminum Housing Vacuum Advance HEI/Male Terminal Black Cap with Coil-in-Cap ertormance istributors RACING IGNITION SYSTEMS www. I decided to test the old coil after moving it over to the new cap. Features The finned ignition coil cover Ignition Coil - SuperCoil - HEI in Cap - 1973-1997 - Red and White Pri Wire This ACCEL GM HEI in cap ignition coil has a maximum voltage of 45,000 volts and has red and white primary wire. Okay, that's good. Fits Chevy 90° V6 & most V8, and Cadillac V8. Nov 22, 2022 · FWIW, the electronic ignition system I am building for my 51's flathead consists of a mix of /6 and flatty distributor parts, using the MoPar pickup to drive a GM HEI module and an E core coil. If it doesn't, the pick-up coil is defective. Apr 22, 2018 · Features: Direct performance replacement for GM HEI coil-in-cap distributors 70:1 turns ratio and lower primary resistance produce high voltage output Full power sparks to 9,000 RPM (When used with 121-83647 Module) 50 State Legal CARB E. These modules provide enhanced high RPM performance and when used with their corresponding Flame-Thrower coil, substantially increase spark plug voltage. These distributors feature a cast aluminum housing with a sintered bronze bushings for long life. The pickup coil rotates counterclockwise and in effect advances the timing by the amount of rotation. Jan 25, 2018 · They are the GM HEI Module, and the reluctor coil pickup. Aug 25, 2019 · Does anyone know the ohm range for the pickup coil? I’m trying to test my pickup coil in my 92 Chevy 350 and I got . For street applications or long duration racing events, the HVC Pro Power Coil, PN 8251 or PN 8261 are recommended. May 8, 2025 · Our performance ignition modules are direct replacements for popular GM and Ford electronic distributors. If it's got power and the car cranks, proving both battery power and ground, and it still has no spark, it's either the coil, pickup or module. 2 volts. Apr 4, 2003 · An HEI ignition is an inductive system, meaning the ignition coil is the sole source of energy storage until the energy is released to fire the spark plug. This modified HEI Dust Cover allows you to remove the stock HEI coil in your distributor cap and replace it with an externally mounted coil such as the Blaster-2 Coil. Another unique feature of HEI is a dwell period that responds to changes in engine speed. 500 Ohms Secondary Resistance: 8,500 Ohms Maximum Voltage: 65,000 Volts Spark Duration: 15 Designed to work with aftermarket performance 4-pin modules and high performance electronic controls. GM’s High energy ignition (HEI), designed and built by the Delco-Remy division of General Motors starting in 1974. 1st test- primary resistance, tach to bat Optional adapters are available for easy connection to early model Delco/GM HEI Systems, late model GM HEI/EST Systems, Ford TFI Systems, and OEM magnetic pickup (non-computer; Ford DuraSpark, GM HEI and Mopar/Chrysler Electronic Systems). Sep 28, 2016 · A non oil filled replacment is the S10 remote HEI coil (These coils are found on HEI engines with small caps [except inline 6's with large cap HEI with coil post], late 80's to 90's 350's, 4. 8K OHMs Inductance: 5. Notice that on top of the coil cover the connecting terminals are marked ' 'TACH" on the left "BATT' on the right (see illustration). It is specially drilled and tapped for the heat sink and HEI Module. Every Pertronix Shop for ACCEL 45,000 Volts Gray GM HEI Super Coil Ignition Coil with confidence at AutoZone. High dielectric strength cap, brass male towers. The coil features special low induc­tance, high temperature windings which charge faster to give you increased spark energy at higher rpm. Designed and manufactured in our ISO 17025 accredited lab, NGK ignition coils are engineered to OE durability and performance. Technical Overview of the HEI System The Chevy High Energy Ignition (HEI) system is a critical component in understanding modern ignition technology and its influence in automotive performance. HEI owners now have a choice to replace their stock coil with the MSD High Energy Unitized Coil for GM HEI Distributors. Features and Benefits: Coil Style: In-Cap (Internal) Internal: Construction Epoxy Primary Resistance: 0. 5's mainly GMC and Chev trucks and vans. Buy HEI IGNITION COIL - NGK 49032 online from NAPA Auto Parts Stores. I'm just wanting to learn if there is a test, with my multi-meter, to see if the coil is indeed bad. Using all new components, these distributors feature High-performance ACCEL Electronics. JEGS - Remote HEI Coil for Select 1982-1997 Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac Models with External Mounted Coil May 14, 2023 · MSD Ignition 121-5525 Features: These coils mount directly in place of factory style versions and accept the OEM connectors as well. FEATURES Watertight, weatherproof connector designed using advance thermoplastics to resist fracture and cracking from heat and thermal The wider plug gaps will allow more spark energy into the combustion chamber providing a better burn of the fuel mixture for increased horsepower. . Find step-by-step instructions and troubleshooting tips to ensure your ignition system works properly. MSD HEI Ignition Coil, MSD-8225 provides 42000 max volts and 200 mA peak current for ignition spark on with a Coil-On-Cap output terminal. Includes a vacuum advance that can be locked out and iron gear. High-temperature epoxy resists shock and vibration while increasing thermal conductivity. The HEI incorporates a magnetic pick-up assembly that contains a permanent magnet, a pole piece with internal teeth, and an electronic module. The high output 50,000 volt capacity will provide a hotter more efficient spark for todays high performance applications. Street legal. O. performancedlstributors. 68 OHMs Secondary resistance: 4. Easily installs to non-computer controlled (4-Pin) HEI housings Built-in To see how this and any other coil design differences affected the spark capability, an otherwise-stock HEI was spin- tested first with the stock and then the MSD, Accel, and Performance Distributors coils. Feb 23, 2022 · Although GM did designate a particular position for the Number One plug wire, as long as the firing order is correct, the distributor does not care which “lug” is used as Number One. The result, is a faster charge and full coil saturation at higher RPM levels. HEI Goes High-Performance Today, there’s a dizzying number of aftermarket high-performance modules, coils, and complete ready-to-run HEI distributors available to performance junkies. The other style coil would use ring terminals. Typical HEI applications include Buick V6 and V8, Oldsmobile V8, Pontiac V8, 1981-91 Corvette. Works with non-computer controlled (4-Pin) HEI housings. No need to remove or re-time distributor. Buy online, pick up in-store in 30 minutes. >>>> Only the stock magnetic pickup and reluctor/stator assembly and harness will remain from the original set up. 2000 and up coils are usually 0. Ignition Kit, 6201/31199 made by MSD, for as low as $693. Mallory Hei Distributor Wiring Schematic Components A Mallory Hei Distributor Wiring Diagram contains the components associated with the distributor itself. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. There IS elec. I want a "cannister" type coil. Our HEI distributor fits all small block Chevy V8 engines and standard deck big block Chevy engines (such as 396, 427, and 454 displacements), making it the perfect BBC distributor. Using these coils results in quicker starts, improved idle quality, crisper throttle Replaces OEM style HEI ignition coils in GM coil-in-cap style distributors. It probly is. Fits GM HEI '73-'91 vehicles. I have a supplemental ignition distribution/fuse block to get my power from. Characterized by the incorporation of the ignition coil built into the distributor cap which Performance Ignition Coils Accel HEI Remote-Mount Ignition Coils optimize low resistance, have high turns ratio windings, and a silicone magnetic steel E-core that produces higher energy and voltage outputs. Upgrading from a Mopar electronic ignition system in a 1965 Barracuda to a 4-pin GM HEI (High Energy Ignition) system. There is an alignment tab on the inside edge of the cap that fits into an alignment slot in the distributor bowl. Performace output is improved thanks to a careful selection of better materials and efficient winding ratios. 50 OHM. One issue with the GM design is because the coil is so small, high current is needed (also creating heat) to get enough core saturation. Dec 2, 2006 · 350 Chevy won't start!!!! Is there a way to test the coil and module to see which one needs replaced? I have 12-Volt at the Battery wire going to the distributor but she won't start!!!! I put one of those cross-fire caps/coils (puts 4-wires on each side) that makes a neat wire job on a show car Sep 23, 2018 · HEI eliminated this problem by removing the resistance wire and applying full alternator output to the primary circuit. 6 mH Maximum voltage: 44,000 Volts (Tested with 6AL Ignition) Peak current: 220 mA Spark duration: 300 uS Features: Direct performance replacement for GM dual connector coil 100:1 turns ratio and lower primary resistance produce high Oct 4, 2013 · Performance ignition coils from Crane Cams enhance engine efficiency and reliability for automotive enthusiasts and professionals. I am in the process if building one. The 7AL-3 may be used with a GM HEI Distributor May 23, 2017 · Re: 350 Chevy Engine with HEI- Spark Plug Gap? by user-23911 » Thu May 25, 2017 9:50 am It's really simple, double the number of coils. 5 AMPS Operating Voltage: 12 to 18V Rev Limiter Overrev Protection is pre-set at 5,000 RPM and can be The vacuum advance canister rod, the part that actually does the pulling, is attached to the pickup coil in the distributor. Model specific subject matter experts, classified ads and more. Jan 10, 2016 · I know GM HEI modules will work with higher-resistance coils because I've seen them successfully used that way. Chevy V8 GM HEI Distributor w/ MSD Module made by Speedway Motors, for as low as $322. Don't See a Chart? Message us for help. It uses the coils mounting holes on the head using your existing hardware. I measure the primary resistance, between Bat and Tach terminals, get 0. 50,000 volts. There is 12. Description: BluePrint 65000 Volt HEI Ignition Coils Excellent performance upgrade for GM Style, Large Cap, HEI distributor. The integrated coil keeps under mount wiring clean, and for race cars, the idea of running one wire to the distributor keeps things simple. Get step-by-step instructions and tips from experts. Features optimized resistance levels to match the high amperage dwell circuits of performance ignition modules. This discussion will break down the HEI system’s fundamental elements, shedding light on how its components work together cohesively. Aug 8, 2010 · In my case, it was to prove that coil-in-cap igniton coils and HEI pickup coils are designed as a matched set -- Chevy, Caddy, and Olds Toronado use the pickup coil with a yellow connector, and they use the igniton coil with red and yellow wires. It will work with stock ignition modules but for maximum output use the MSD HEI Module. Features ultra-fine magnet wire, high strength case with cooling ribs, cap head through bolts and carbon brush spring and coil gasket. The premium epoxy filled construction is designed to withstand harsh race May 3, 2015 · How to test a GM HEI ignition module without the special module testing tool. ; Legal in all 50 states Jan 31, 2008 · Thanks for your help I suspect that the coil is bad. , is an electronic ignition system designed by Delco-Remy, a division of General Motors. Engineered for higher energy output resulting in quicker starts, improved idle quality, crisper throttle response, and more high-RPM power. Parts are just part of what we do. INSTRUCTIONS l) Familiarize yourself with our new distributor. For that matter, the original HEI had the pickup, module, and ignition coil in close proximity to each other. O Number D-40-37 Special low induc-tance High temperature windings which charge faster for increased spark energy at higher rpm Designed to withstand harsh HEI owners now have a choice to replace their stock coil with the MSD High Energy Unitized Coil for GM HEI Distributors. com. Jun 28, 2016 · One physical adjustment you can make with most plugs is the distance of the spark plug gap. Check the connector at the pickup for the green meanies. ; Ultra low primary resistance values. You can try just a module, or replace the entire dist. The MSD HEI Coil is designed for use with the MSD High Output HEI Module, PN 8364. 3 ohm. Performance Replacement HEI Distributor, direct plug-in with OE type connectors, GM HEI equipped Cars, Trucks (Pre-Computer). Most HEI systems have the ignition coil mounted in the distributor cap. Shop for ACCEL 45,000 Volts Gray GM HEI Super Coil Ignition Coil with confidence at AutoZone. This feedback loop works slowly, though, so the coil is incompletely charged during sharp increases in engine load, such as acceleration. Too small of a gap can make life too easy on the ignition May 7, 2025 · At higher speeds, the pulses are short; the resistor runs relatively cooler, increasing power to the coil to better meet the engine’s greater needs. 0. Dec 29, 2015 · MANUFACTURER: AIP Electronics Compatible with 65K Volt HEI Electronic Ignition Distributor Coil For All HEI's General Motors Chevrolet Buick Dodge and Ford **Be Sure to Check for Correct Fitment Using the Chart Above. HEI Super Coil with Red and White primary wire. Compatible with GM or A-Team's HEI distributor, it ensures seamless integration Durable Construction: Crafted from high-strength polymer, the distributor cap is reinforced with Sep 2, 2024 · High Energy Ignition, also known as H. R. Apr 7, 2017 · In a GM HEI system, the module replaced the contacts of the breaker points and the pickup coil was substituted for the rubbing block and distributor cam. My question is what coil to use. When vacuum is applied to the canister it pulls the rod, and this pulls on the pickup coil. Speedmaster 6000 series HEI distributors are packed with high-quality features and components. This increases the reliability and the performance of the stock HEI system. Note: The Rotor Bushing supplied is a replacement unit designed for stock or mild HEI Distributors and has very high resistance. Learn how to correctly wire a 4 pin HEI module in your GM vehicle to ensure proper ignition and improved performance. However, when it comes to performance, the stock HEI falls short. to the dist. This Pro-Billet HEI distributor is supplied with a Digital HEI Module and Coil for spark energy combined with improved dwell and timing control. This coil is a direct re­placement of the stock coil. In short, a coil must be engineered to perform in a harsh environment while delivery consistent, reliable performance. Dec 7, 2017 · These distributors are often used in GM V8 engines, and provide several benefits to the vehicle, including increased spark intensity and longer plug life. The add on module takes the heavy current load off the little HEI module and you can run all the coil you want. (C. U. I have multiple factory manuals from GM with the diagnostic tree for the HEI. Get yours online today and pick up in store. Jan 1, 2025 · I'm considering replacing my points distributor with one converted that has an electronic module installed in place of the points. Sep 7, 2022 · HEI Super Coil with Red and Yellow primary wire. 5 mH pL Coil: 3. I. This HEI remote mount Super Coil is engineered with optimized low resistance, high turns ratio windings around a M36 high silicone magnetic steel E-core for higher energy and voltage outputs. This module fits most GM HEI for V8 engines with the 4 pin module 1974 thru 1985 Clear and practical wiring diagram for a GM HEI distributor, showing key connections and components to help with setup or troubleshooting in automotive electrical systems. Learn how to wire a HEI ignition module in your vehicle for improved performance and reliability. If you are replacing an existing HEI distributor, the wiring harness from the ignition switch can now be plugged into the coil. It can be used with many ignition-enhancing-after-market capacitor discharge units such as MSD or Jacobs (multiple spark distribution). If an MSD 7 Series or Digital Series Ignition is used an MSD Low Resistance Rotor Bushing, PN Sep 8, 2018 · Mike, Either coil is fine. The solid state electronics provide high coil out put and superior reliability. Misc. Learn how to properly wire a GM HEI distributor and coil with a detailed wiring diagram. Each product section includes key features, mounting considerations, and compatibility notes to help you compare options side by side. Approved Install the new cap assembly which contains the cap, coil and wiring, silicone seal, carbon brush and coil dust cover onto the distributor housing. Apr 17, 2009 · I bet it has the same specs and provides the same performance as most any other HEI coil--INCLUDING the various Delco units as installed on every in-cap coil HEI since mid-'74. >>> This HEI Module will replace the stock configuration 4 pin GM module and the harness/condenser assembly inside a 4, 6 (even-fire only) or 8 cylinder HEI distributor. Cost = zero Oct 4, 2005 · What are the signs of a bad HEI distributor coil? How do you test coil? Legal in all 50 states and Canada. Aug 16, 2011 · I believe some of you guys have done the conversion using a GM HEI module (the early 80's "boomerang" style) with a Ford distributor. These units were used on all engines in 1975 through the mid-1980s, with several different variations over the years. The ohmmeter should indicate infinite resistance. The Chevrolet HEI distributor is a favorite for muscle cars, street rods and even circle track racers. Heat Shrink and Terminals Mounting Plate for HEI Module -- This is a very special item. If you are replacing something other than an HEI distributor, a 1/4" female tab connector can be used to connect the wire from the ignition switch to the coil. What size wire(12ga) and fuse MSD 8362 Street Fire Chevy HEI Distrib. Special high-temperature epoxy resists shock and vibration while increasing thermal conductivity. Mar 22, 2013 · There was a post by 75gmck25 on 3/30/2008 as follows: I'm replacing the distributor cap and wires on my '75 GMC truck, which is a 350 with a stock large diameter GM HEI distributor. COIL RECOMMENDATIONS The MSD 7AL-3 can be used with a variety of coils, but to receive the best performance, it is recommended to use an MSD Coil. Use junkyard parts. GMC Motorhomes International's goal is provide fellowship and technical information through continuous improvement of communications and conventions. Identified as an expanding dwell, the saturation time of the coil is controlled by engine rpm. To test reluctor pickup with a Digital Multimeter, set to LOW Ohms, measure across the two leads that are connected to the GM HEI Module BUT disconnect them first. This guide highlights five top options, covering direct-fit replacements, high-voltage performance, and universal compatibility. The coil features special low induc­tance, high temperature windings which charge faster to give you increased spark energy at higher rpm. Apr 18, 2014 · General Motor’s HEI distributors are still going strong. This product is legal to sell, distribute or install on vehicles in California. 840 in the 2k ohms setting and I think that’s test in range after you convert it over but I’m not sure if the range is the same as a hei pickup coil Aug 16, 2011 · I believe some of you guys have done the conversion using a GM HEI module (the early 80's "boomerang" style) with a Ford distributor. PRODUCT DESCRIPTION These PCE HEI coils replace the stock distributor mounted HEI coil and produce out a hefty 65,000 Volts of plug-firing power. E. Ideal for Chevrolet V6s and most Chevy V8s, ACCEL HEI Super Coils are compatible with both original HEI ignition systems and later model computer-controlled systems. Racing Coil Kits have a 30 day warranty from date of purchase. Dec 2, 2015 · The integrated 1-wire coil keeps underhood wiring clean. Mar 13, 2024 · JEGS 40124 HEI High-Output Coil is packed with 65,000 volts and is the perfect upgrade from a stock HEI coil. 99. The Dwell control circuit ensures, long consistent coil charging. The HEI coil in cap design makes it easy to change out a coil with a few basic hand tools. Opening the gap forces the coil to build up a higher voltage in order for the spark to jump the gap. Your resource for everything GMC Motorhome! Aug 16, 2011 · I'm trying to check a coil-in-cap HEI coil for a street rod that has no spark. No longer was an external coil needed as the HEI incorporated one in the package. Learn how to wire a HEI distributor with this detailed diagram, including step-by-step instructions and key connection points for optimal performance. It is impossible to list every coil combination and it is recommended to check with the coil manufacturer before installation. 83. vswi khbvna lybce llqlq play xiazz eczhw apjd lqwx nmskwp vvwoapnq rbjil wgzbm apdb pnh