Duraspark Distributor Recurve


I'm setting up a 1970 Ford 302 with a later "Duraspark" ignition system. The "pickup" is usually a derivative if the Ford duraspark pickup. Re: Distributor Recurve / waterproofing Glad to help WD-40 I mentioned the 351 Cleveland, because I thought Converted had hizsef a 78 or 79 there, but on closer inspection it looks like an 85. m m jeep wrangler distributor can someone expain to me the distributorless ignition thing with 2000 and 97-99 new distributor installed but jeep stumbles when i give it a little gas distributor problems vacuum advance on distributor timing. com Canted 393, the distributor, I can recurve myself, but will try this guy to see if he will reveal his secret to this. 2000rpm is way too early for a stock geared or torque converter street car. While everyone else was using the ancient points-type ignitions, Chrysler scooped 'em all with the electronic. Let the people with 12+ years of experience in finding and buying car parts help you find the best Distributor for your Ford Ford 300. The system consists of a magnetic reluctor and pickup in the distributor, and an ignition module to trigger the coil. I also work on the early models from the 1940’s & 50’s, as well as the military model. I got around to tearing down my duraspark donor distributor and this is what i found for advance slots. MSD makes a very good distributor, it has a great advance mechanism inside. it has been a. Vintage Torque All old Ford Truck owners need to know Ignition Control Module From New and old. Feared by many, and ignored by many more, the. Even custom, and performance / racing. Cet exemple dépend de la quantité d'accumulation sur le moteur et le rapport d'engrenage finale. I do, however, need to switch out the GM HEI Ignition module with a stock one from a Duraspark, or an MSD Unit. I've been running one for about eight years. Pertronix Performance Products - Manufacturing quality ignition and exhaust products for over 40 years. MSD IGNITION • www. Yes - still viable, IMHO. If you want MORE centrifugal advance, it's built into the Centrifugal advance head! And you don't have to take the distributor out and apart to get more! (Not like GM where you have to machine the head to get more!). It is 30 degrees of crank advance, because the distributor turns at half the speed of the crank, and whatever you do with the distributor, in degrees, is doubled on the crank. American Sleeve Bearing (ASB) is one of the country's largest manufacturers of bronze bearings and bushings. m m jeep wrangler distributor can someone expain to me the distributorless ignition thing with 2000 and 97-99 new distributor installed but jeep stumbles when i give it a little gas distributor problems vacuum advance on distributor timing. They take a rebuilt Duraspark distributor, and recurve it and the vacuum advance to your particular engine. This spring requires slightly less force to stretch it the same distance, so it will cause the timing to advance at a faster rate. I also installed a recurve kit for it. There are many DuraSpark distributors. Necessity is the mother of invention. My damper only goes to 30 degrees BTC so I am guessing when I say total was upper 30's. 80 gears with Detroit Locker 4 speed toploader. Tango's Ultimate Hot Rod House-> Ignition Start & Charging System's. This problem is. Hit the hot rod shops in your area for someone with a distributor machine. I run more centrifugal and less vacuum advance in my Delco system then the Duraspark will allow. it seems to me that most small blocks were happiest around 12 degrees initial, but i could be dead wrong on that, (relying strictly on memory). Even fords duraspark electronic remained hobbled by a ballast. This will let you keep your "Small-cap" distributor looking stock. 0 + carb? I'm either going with the duraspark ford system or buying a points dizzy and changing it with a petronics. Ford began using the Duraspark II system in 1978. Set timing at 6 degrees BTDC. When I bought the Cleveland a few items came with it, one being a boxed DuraSpark Dist. If you are not really up on tuning your timing curve, there is some real good information out there that is simple to do and very rewarding. MSD IGNITION • www. The tags are a quality reproduction; they are a great final touch for any rebuilt Auto-Lite starter, generator, voltage regulator or distributor. Necessity is the mother of invention. contact spacing was 0. The Duraspark distributors use the larger cap. Before I install I want to upgrade to a MSD ignition. • The pickup coil, located under the distributor cap on many electronic ignition engines, can cause a no-spark condition if defective. As far as the distributor goes, hopefully Scott at Reincarnation will pull my name is his yearly end of year drawing for a recurved Duraspark and I won't have to mess with it! Still trying to figure out why 460 truck headers all have such small primary tubes. With a target total and initial in mind I measured the weights in the new distributor and made the adjustments. For the adjustable vacuum advance. I basically funded it by selling off the two 4-banger mercruiser setups they had to buy the sei adapter and use their spare outdrives. Ford used 3 kinds of distributors on 1966; the Loadomatic, a Dual Advance and a Centrifugal. As you can see, the slot labeled "15L" is engaged on the limit pin. Le recurve devrait augmenter le RPM efficace entre 2200 et 6500 RPM avec une augmentation de couple à un pic RPM légèrement plus élevé. This is MSD's street distributor for a Chevy application. Performance Tuning Your Distributor April 16, 2015 Randy Bolig Drag Race 101 , Guest Columns , How-To and Tech Tips , Tech 0 If you spend any time at a speed shop or race track, you have inevitably heard someone mention “where their timing is set”. A high output ignition was introduced in 1977, named Duraspark I. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. Hope this helps and let me know if you have any questions. Even custom, and performance / racing. We carry one of the country's largest inventories of standard size cast and powdered metal bronze bearings, as well as bi-metal split types in metric and inch. Notice how all distributors use the same arrangement; the switch is mounted on the breaker plate, while the trigger is on the shaft. I finally bought an eBay duraspark distributor (first one I got was for a 302, the seller said it was for a 351 but too short) since it currently has one without a vacuum advance, I am going with a duraspark module though I think, I have to make it look stock, make it run, and most important pass emissions and run well, and not get 7 mpg. I custom build each one to your specific requests. The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. This problem is. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. Remove cap with wires and set aside. Winners Choice Racing brings you the best in high performance racing products. The GM 4-pin module works great with these as does an MSD6a. Even fords duraspark electronic remained hobbled by a ballast. 1965 Mustang Distributor Information. General information: 170 and 200 cubic inch in-line six cylinders all had a breaker arm spring tension of 17-21 ounces. Dura spark conversion, 7 minutes total on job thus far (not including the 15 min to recurve). CLICK HERE to return to Home Page. It's also worth considering that with dissimilar springs, that you can recurve your distributor at different rates. Eventually, oil splash will maintain lube. Show Full Signature. The entire Advanced Timing Curve Kit from Mr. There is no good way to put a HEI module into your points distributor. I'm needing the weight bushings and some other odds and ends to fix my distroanyone have a line on a parts source?. Just installed the Mr. CLICK HERE to return to Home Page. You can find them for about $52. Then just recurve the advance in it. Performance Distributors is leading the way in performance and racing ignition system innovation. For the adjustable vacuum advance. 16L(or 18L couldnt read it) and 21L. • A pickup coil contains a coil of wire, and the resistance of this coil. Bunting Bearings manufactures a complete range of cast products including bronze, powdered metal and plastic bearings, bars, discs and plates. To be honest, I don't know what the total ignition timing is all I've done is experiment with the base timing. My Comet's 331 is only slightly more tempermental with cold starts with a Duraspark, a Z 303 cam and the triple duece carbs. Worried about the module failing? Just run an MSD 6AL. We have over lots of customer reviews on Ford Distributor to help you find exactly what you need. This distributor had an original application of set at 0 degree TDC so it could advance the 30+ degrees necessary. Hello there guest and Welcome to The #1 Classic Mustang forum! To gain full access you must Register. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. If you want to recurve your distributor, you probably already have an adjustable vacuum advance, and advance weight springs for centrifugal recurve are available from Mr. The duraspark distributor is a fine piece for street duty, and so is an MSD 6A or 6AL. I am using a Duraspark distributor and port vacuum advance. willgive me to much advance. It has to deliver a timed spark to each spark plug at precisely the right moment in sync with piston travel and crankshaft, camshaft, and. I did some checking on it's advance curve and found that the mechanical advance is done at 85 5. If you want MORE centrifugal advance, it's built into the Centrifugal advance head! And you don't have to take the distributor out and apart to get more! (Not like GM where you have to machine the head to get more!). Hello there guest and Welcome to The #1 Classic Mustang forum! To gain full access you must Register. Free shipping on many items. the Distributor would stay at the initial 10* until around 3800 then jump from 10* to 41 degrees. Without knowing what year engine you have, you can use the rule of thumb. Let the people with 12+ years of experience in finding and buying car parts help you find the best Distributor for your Ford Ford 300. The following photo is a late 60's Ford distributor, with the breaker plate, springs, and weights removed. Since you get 30 degrees + advance with the vacuum line off. Start by finding a 1976 or later donor car with the Duraspark II, or you can buy it new/rebuilt. So I've been researching spring and bushing kits so I can recurve my MSD distributor (when I get it). Recurve distr to bring the. It may also have compatibility issues with the earlier motors because the carb opening is slightly bigger. Hand written on the box states, 75 Grand Torino. What year and app do I ask for (California-Duraspark) What year "Jeep Cap". Home - GM HEI Distributor Upgrade for 258 I6 Jeeps The drive gear found on stock 79 & later Jeeps with the Duraspark ignition will not fit properly on the HEI distributor. It can be used with both the large cap and small cap early electronic distributors. • The pickup coil, located under the distributor cap on many electronic ignition engines, can cause a no-spark condition if defective. MSD distributor caps and rotors are designed with performance in mind and molded from high-quality, voltage-insulating material with terminals that resist carbon tracking. Plenty of guys use them. There are a couple of folks on Fordsix offering recurve services. Distributor advance. My T-bird has an 86 engine that I converted to carb. Advanced Distributors is your source for automotive distributor service. MSD makes the best distributors of all, first class stuff. It has to deliver a timed spark to each spark plug at precisely the right moment in sync with piston travel and crankshaft, camshaft, and. I chose to stay with a stock starting system design. I'd like to see his Y-Block GM HEI style distributor. I have been using the small points style cap on a Duraspark distributor for many years without any problems,I am also using a cut to fit set of plug wires that are probably for a points ignition too. Weld up one of the slots to get your desired adv, and you're good to go. Points, duraspark electronic or use a Pertronix unit. I did some checking on it's advance curve and found that the mechanical advance is done at 85 5. You are correct, I was not refering to the cap size in relation to ignition function, I was refering to it as a way to identify Duraspark I versus Duraspark II. Make sure you have enough movement to rotate the distributor so you can both advance and retard the timing. These distibutors can also be converted to Ford Duraspark ignition (The best type are the 1962-1964 units with the o-ring seal on the base) Avoid 1955-1956 Load-o-matic distributors. Electrical Systems/Wiring - Duraspark II Recurve questions - Just bought a remaned Duraspark II distributor (A1-Cardone) and performed a recurve on it from some instructions off a web-site I ran accross (much simpler than it looks to do). MSD IGNITION • www. I have been using the small points style cap on a Duraspark distributor for many years without any problems,I am also using a cut to fit set of plug wires that are probably for a points ignition too. Bunting Bearings manufactures a complete range of cast products including bronze, powdered metal and plastic bearings, bars, discs and plates. Easy to use parts catalog. Curved per application. Ordered the Mr. The truck still has the original vacuum advance distributor (and the original Duraspark module with the blue grommet), and it has not been re-curved (yet! ). IMO, you need to recurve ANY replacement ignition system for YOUR engine, the size, compression, fuel, gear ratio, needs. Start by finding a 1976 or later donor car with the Duraspark II, or you can buy it new/rebuilt. In terms of layout, it's much the same as a vintage Delco, where the mechanical advance mechanism is located under the rotor. Notice how all distributors use the same arrangement; the switch is mounted on the breaker plate, while the trigger is on the shaft. There's a tiny silver can on the side of most distributors that is easily the most misunderstood component of any distributor-based ignition system. 060" gap no matter what. If you are not really up on tuning your timing curve, there is some real good information out there that is simple to do and very rewarding. Ignition wiring diagram for 2 8 l. What changes have to be made to the factory Duraspark dis. In terms of layout, it's much the same as a vintage Delco, where the mechanical advance mechanism is located under the rotor. 025 and the dwell at idle speed was 37-42 degrees. Some little town machine shop, all the receipt says was "Rebuild Ford 400" and the total of about $1600 bucks. The system worked well, but eventually I swapped out the duraspark box for a Crane HI-6 box. Show Full Signature. The problem I'm running into is the MSD spring and pushing kit that is available for the pro-billet distributors (#8464) has 18, 19, 21, 23, 25, & 28 degree bushings. Worked well for me. Please e-mail me. Shop with confidence. You may have to register before you can post: click the register link above to proceed. KMG Imports partners with the best brands to provide branding, distribution, and after-sales services. Carefully place the roll pin into place after fully seating reluctor on shaft and gently push it back into place with a hammer and a small punch. The Mopar electronic ignition system introduced in 1972 was cutting edge in its day. Your engine can function a bit better with a recurved distributor. In modifying a distributor to "S" specs, in order to increase the static timing, you must also limit the spark timing allowed by the distributor (via the stop pin) so as to not exceed a safe total spark advance. Have you guys tried this hall effect setup from American Autowire? I have a very old Petronics igniter in the AMX that's starting to wig out and thought this might be better than the warped split magnet ring I have now that cannot be setup to spec at. 0 va tolérer. Recurve it for your motor's specs. If you are not really up on tuning your timing curve, there is some real good information out there that is simple to do and very rewarding. I'd heard mention of the weld and grind method before, that may be what I have to do. 00 US retail and the recurve spring kits are cheap at about $7. This is MSD's street distributor for a Chevy application. Most of the time, distributors are fine right out of the box. This is a link to my website outlining how to recurve your dura spark distributor. Get the best deals on Car & Truck Ignition Systems when you shop the largest online selection at eBay. I did some checking on it's advance curve and found that the mechanical advance is done at 85 5. So with 10 degrees initial, I'm seeing about 80 total at 3000 rpm. Edited 2 time(s). Start with locked timing at 28deg. I believe the. I've been looking at the 2bbl version for a different application and it will control timing with a distributor that has a magnetic pickup like an HEI, Duraspark, or MSD. I want to reduce it to the 10L size and keep reading about everyone welding the slot up. Common wisdom is keeping total advance to 36* or less. I worked with the guys at Performance Distributors to develop one for a Y-Block and there just isn't room for a stock GM cap/coil assembly without a custom distributor body. 0 + carb? I'm either going with the duraspark ford system or buying a points dizzy and changing it with a petronics. I got around to tearing down my duraspark donor distributor and this is what i found for advance slots. Each dist has a plate with two different mech adv slots with different amounts of adv. When installing the new distributor, it is always a good idea to use a new O-ring. Most of the time, distributors are fine right out of the box. We can recurve any small block, Y block, FE, 385 series or Cleveland engine. The Autolite single-point distributor was a mainstay on all big-block Fords from 1958-71. 70Ω primary resistance, 7,750Ω secondary resistance and no ballast resistance (the coil operated at full battery voltage). edit - I believe there's a Mr. The Duraspark distributor uses this vaned piece to trigger the switch. My damper only goes to 30 degrees BTC so I am guessing when I say total was upper 30's. Ordered the Mr. 0 did this change in the mid 80s. Bunting Bearings manufactures a complete range of cast products including bronze, powdered metal and plastic bearings, bars, discs and plates. Remove cap with wires and set aside. To be honest, I don't know what the total ignition timing is all I've done is experiment with the base timing. How to recurve a Duraspark distributor – easy way to add performance if you have one of these distributors on your Mustang or other Ford How to determine the age of a tire – depending on who you believe, most tires made today only last 7 – 10 years. These distibutors can also be converted to Ford Duraspark ignition (The best type are the 1962-1964 units with the o-ring seal on the base) Avoid 1955-1956 Load-o-matic distributors. Re: HEI Upgrade for 1977 CJ5 258 Here is a thread on JeepFourm. Setting the timing on your engine is one of the most misunderstood adjustments, the information on these pages will help you understand and answer all of your questions about ignition timing. Duraspark distributor springs wanted Does anyone know where i can find recurve spring kit for the dizzy. Likewise, if you're replacing the rotor, be sure to install a new cap as well. will probably be bringing it to the fairlane nationals this year in Dayton , OH. As you can see, the slot labeled "15L" is engaged on the limit pin. reincarnation-automotive. Re: oem marine HEI distributors? do they exist? they are expensive as hell and I'm working with trying to get a distributor for around $100. Thanks for the link, but that didn't help. Hi, My 358W is back together with about 425 HP. Gasket, p/n 925D, about $5. The end of the distributor shaft is also larger to accomodate this difference. An MSD billet distributor gets the once over on a distributor machine. My T-bird has an 86 engine that I converted to carb. By not putting everything metal right under the rotor, they delivered much more spark energy to the correct distributor cap terminal at the correct time. DuraSpark distributors for the 351C will be sourced from a 1977 through 1982 Ford vehicle equipped with a 351M, 400 or 460 cubic inch V8. But judging from the carb air cleaner and stock intake manifold combo shown, that stock Duraspark distributor looks lower than my MSD Pro Billet distributor. I'd heard mention of the weld and grind method before, that may be what I have to do. I own a 1969 Ford F 250 with a 4. This engine is not the original as it has a Ford electronic ignition which was offered from 1974 on (it looks like it's from mid to late 70's even though those engines were produced up into the late 80's or possibly early 90's). 0 did this change in the mid 80s. I see Summit has the kits with the vac advance cannister but i just bought the cannister locally and now i may need some springs. Recurve!!! This is our true specialty! to "recurve" a distributor is to get the timing exactly correct at every single rpm possible, not just at idle. There is nothing uglier than an overbearing, mammouth, merry-go-round of a GM HEI on a Ford engine. Add an e-core coil for $20 for hotter spark. • A pickup coil contains a coil of wire, and the resistance of this coil. Performance Distributors Custom Curved Ford DURASPARK Distributors If you are looking to replace your tired DURASPARK, Performance Distributors offers custom calibrated units with improved components. contact spacing was 0. Cover carburetor and around base of distributor to protect against dropping of small parts. Vintage Torque All old Ford Truck owners need to know Ignition Control Module From New and old. The Ford 460-cubic-inch, V-8 engine, produced from 1968 until 1996, was essentially a 429 engine with a longer stroke. this has been a very budget minded rebuild on their boat. Beginning in 1972, the Autolite name was dropped and Motorcraft used instead. All complete rebuilt distributors receive a new data tag. Ordered the Mr. Beware of bogus and unsubstantiated claims on the "Internet" Start sensor technology, the program changes the dwell time to the coil under 500 RPM cranking speed and increases output by 30-50% for quicker cleaner starts. You are correct, I was not refering to the cap size in relation to ignition function, I was refering to it as a way to identify Duraspark I versus Duraspark II. Registration is free and it takes only a few moments to complete. MSD IGNITION • www. Make sure you have enough movement to rotate the distributor so you can both advance and retard the timing. The distributor parts are standard Duraspark components, available at any parts store. MSD distributor caps and rotors are designed with performance in mind and molded from high-quality, voltage-insulating material with terminals that resist carbon tracking. So I've been researching spring and bushing kits so I can recurve my MSD distributor (when I get it). Good grief, those are small block header sizes! haha. One of the greatest improvements I have ever made as far as driveability and overall good performance are concerned. Recurve distr to bring the. Distributor Recurve, Dash Pad Install. Advanced Distributors is your source for automotive distributor service. The problem I'm running into is the MSD spring and pushing kit that is available for the pro-billet distributors (#8464) has 18, 19, 21, 23, 25, & 28 degree bushings. We feature specialty stores in popular categories like Exercise & Fitness, Golf, Hunting & Fishing, and Boating. It may also have compatibility issues with the earlier motors because the carb opening is slightly bigger. Oftentimes the kit is no longer with the distributor if purchased used. 2000rpm is way too early for a stock geared or torque converter street car. It allows hobbyists to easily “recurve” their distributor to improve the performance of a given combination. com Canted 393, the distributor, I can recurve myself, but will try this guy to see if he will reveal his secret to this. 2000-2800rpm is a huge allowance for total mechanical advance. it seems to me that most small blocks were happiest around 12 degrees initial, but i could be dead wrong on that, (relying strictly on memory). There are many DuraSpark distributors. AMC had redesigned its inline OHV engines for its 1964 cars, shifting to a 7‐main bearing design. Recurve it for your motor's specs. But, when people go with carburetors and just disconnect the vacuum but leave the canister on, where is rotor phasing coming from?. Dura spark conversion, 7 minutes total on job thus far (not including the 15 min to recurve). Bang for the buck, the Duraspark II distributor is hard to beat as a triggering devise for an electronic ignition system. If I run this distributor on manifold I get heavy pinging during no load highway driving. org/~dw/sbf. I'm a Ford guy so I went through all the trouble to go with the Duraspark sys. I used the lightest springs in the Mr Gasket 929g kit. Hey guys, here's my help thread for the 400 in my '77 truck. Duraspark_distributor_recurve Duraspark visually does. bosch hei ignition module - suit holden / ford & various others 4 pin module suit most scorcher electronic distributors. • The pickup coil must generate an AC voltage pulse to the ignition module so that the module can pulse the ignition coil. Mustang Boss 302 distributor CLONE C9ZF-E Autolite wide band NEW product. Further, if you have the attachment tab bent on one of the spring attachments so that the initial "take-up" on one of the springs is retarded slightly from idle, you can have a multi-step, fully mechanical advance that is pretty similarly curved to a vacuum advance. Mr gasket makes a spring kit but it does not say it works for the duraspark distributor. While everyone else was using the ancient points-type ignitions, Chrysler scooped ’em all with the electronic. Ford Distributors & Ignition Systems. The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. One of the greatest improvements I have ever made as far as driveability and overall good performance are concerned. 0 Fox Body can start to wear out, leaving you with a miss or rough idle. Further, if you have the attachment tab bent on one of the spring attachments so that the initial "take-up" on one of the springs is retarded slightly from idle, you can have a multi-step, fully mechanical advance that is pretty similarly curved to a vacuum advance. Willys distributors also offers a variety of reproduction Auto-Lite data tags. MSD IGNITION • www. 1979-1985 Mustang Distributor If your 1979-1985 Mustang is running rough or cutting out at higher RPM's, it might be time for a tune up. I need to wake up a mid 80s 351-W « on: July 31, 2016, 12:00:35 am » I had a 351-W built for my 55 Ford convertible that was supposed to be a low end torque motor but it has no balls until it reaches around 2000 RPMs then it seems to come alive,its a 84 block with unknown heads (probably junk) and the cam has a 302 firing order but unknown. Engine should be at normal operating temperature at idle with vacuum to distributor disconnected and plugged. Some after market company's have changed the form factor to fit the older distributors. Duraspark is my prefered distributor to run. Some engines may require disconnecting of some plug or coil wires, if so, mark them accordingly (FIG. This distributor had an original application of set at 0 degree TDC so it could advance the 30+ degrees necessary. I used the lightest springs in the Mr Gasket 929g kit. Regards, Bob. Indirect Ignition, Turbo and Non-Turbo Casting # 1801068-C1: Part # :1651R: 445 (7. (07-10-2017, 10:58 PM) Canted 393 Wrote: Try this guy Faron Rhoads he recures duraspark dizzys [email protected] 18deg advance travel is too much. MSD makes the best distributors of all, first class stuff. Tango's Ultimate Hot Rod House-> Ignition Start & Charging System's. net Mustang Forum. That's the recurve instructions I was looking at I just didn't know if anyone made the advance plates or not. If I might make a suggestion, you could try to use some lighter springs in the distributor for a faster advance rate, perhaps all in more around 3,000 rpms than 4,000. It will, but with the mods you're considering with the Edelbrock intake and carb, you will more than likely need to recurve the Duraspark distributor. The Duraspark didn't come out until 1975 model year, but you don't want to recurve it for that motor. Start with locked timing at 28deg. I offer many rare distributors for sale. I've been running one for about eight years. It was set at initial 14 degrees, and had the stock heavy springs that kept the mechanical advance from coming in quick. I have a stock Ford Duraspark distributor. I had a distributor from a 1977 ford pickup. This was an area that I thought needed help. They remained unchanged until about 1981 when the intake ports were changed from an oval to a 'D' shape (flat floor). It's also worth considering that with dissimilar springs, that you can recurve your distributor at different rates. Otherwise, Raso Enterprises has complete underhood systems and fuel mixture control products & ignition timing control products available for most of the applications listed below. is your stock distributor from an egr equipped vehicle? most egr (73-77 in the case of mavericks) distributors have to be recurved when egr has been removed and will ping under hard acceleration no matter what initial timing one uses. This is a link to my website outlining how to recurve your dura spark distributor. The system worked well, but eventually I swapped out the duraspark box for a Crane HI-6 box. 8 powered Pinto or Mustang II. With a TFI coil, you wont need it either. Some engines may require disconnecting of some plug or coil wires, if so, mark them accordingly (FIG. Remove cap with wires and set aside. As you can see, the slot labeled "15L" is engaged on the limit pin. See more ideas about Mustang, Ford and Car parts. Re: Recurve distributor DURASPARK-2 I did this light spring mod on my 69 351w stoked to 393ci, 10. All things Mechanical. Your Mustang's distributor performs one heck of a job. Points, duraspark electronic or use a Pertronix unit. willgive me to much advance. 70 Trans-Am - Custom 455 SD Build, Nitrous Installation, Complete Interior Restoration. The duraspark distributor is a fine piece for street duty, and so is an MSD 6A or 6AL. The HEI cap doesn't fit worth a crap, and looks like ass on a Ford. it seems to me that most small blocks were happiest around 12 degrees initial, but i could be dead wrong on that, (relying strictly on memory). Duraspark recurve results. Most of the time, distributors are fine right out of the box. will probably be bringing it to the fairlane nationals this year in Dayton , OH. Hey guys, here's my help thread for the 400 in my '77 truck. It can be used with both the large cap and small cap early electronic distributors. So I've been researching spring and bushing kits so I can recurve my MSD distributor (when I get it). Ford Duraspark: Parts & Accessories eBay Find great deals on eBay for Ford Duraspark in Distributors & Parts. Im having an all iron, stock stroke Cleveland built. Here's how to spot the right one for your Mustang. A ballast resistor suitable for DuraSpark II installations is available from NAPA Auto Parts, NAPA part number ICR23 (1. willgive me to much advance. The wiring is attached via a special snap-on connector. 3 first debuted in the 1974 Pinto using a progressive 2bbl Weber/Holley carburetor and a points distributor. Hand written on the box states, 75 Grand Torino. Think of it this way: The primary circuit gets power to the ignition coil and the secondary circuit gets processed power to the spark plugs. Duraspark II Distributor. Since the Duraspark system has been installed in millions of vehicles since 1974, cores are plentiful from salvage yards.