Omc king cobra to mercruiser conversion. 0 mercruiser engine for dirt cheap.

  • Omc king cobra to mercruiser conversion Yours is not supported by SEI. Nov 9, 2008 · Hello, I currently have a 92 221 liberator that I am having problems with the outdriveking cobra cone clutch. Apr 22, 2010 · Re: NEED HELP 1994 OMC 7. 3L OMC Cobra with Cobra Stern Drive . 3 l with a 4. The engine has a lot of blow by and rather than overhauling the 120, I am seriously considering changing the driveline over to a Mercruiser 470. Use the complete Mercruiser wiring harness On the new engine. most cobra's out there are 4cyl or the 5. Mar 20, 2005 · I have a customer who wants to install a Pertronix Ignitor conversion on an '88 OMC 7. Is there any truth to this? How do I go about determining what Mercruiser drive unit I need and what ?adapters? I would need to complete the conversion? Know of any shops that could order these parts in and install them in the Albuquerque area? Aug 21, 2005 · Since I’ll have to remove the entire drivetrain to replace the transom, I thought it might be a good time to swap out the OMC with a Mercruiser while everything is out. I have no plans on selling the boat for at least 3 to 5 years. I am pretty sure the Edlebrock Aluminum intake manifold is a dual plane manifold, while the stocker is a single plane manifold. Will there Be major issues with; 1. It's pretty clear that it failed and the previous owner tried to fix it, and they were unsuccessful. I want to repower the PartyCat with the the Mercruiser set up engine and outdrive. H Replace 1986-1993 Cobra drives that shift in the lower unit. 3L Prestolite IBM-7021 distributors to Electronic Ignition 1980-19 Sep 10, 2014 · This is a 1993 Chris Craft 262 Crowne. Mercruiser; OMC Stringer/Cobra® Apr 17, 2022 · An OMC 1987 V8 5. although the aftermarket stepped in with a conversion kit. There is a new coupler on Ebay now. Pretty much if you are converting OMC Cobra to Merc, it is just about a bolt in swap, using existing cut out. This kit allows converting the OMC outdrive to the Cobra engine that is already in the boat, correct? 2. I found a volvo dps outdrive with transom assembly included for like 6000would this covert over very easily and would it be worth my time or just try to have to king fixed? Nov 24, 2020 · Swap Shop - 7. I have had quotes of $4K or $5K to do the job and I don't think I want to dig that deep so Jul 23, 2010 · I need to know how to differenciate between a COBRA and a KING COBRA outdrive. I found one 2006 mercruiser at 5000$. Motor mounts 2. If you have a fuel injected motor with the shift bracket at the front of the engine, please call us to order. 2. 3 L OMC Engine to Mercruiser Outdrive You can't just bolt on a Merc outdrive, but one can be fitted with a LOT of work, you would have to change the opening in the transom, and change the steering and trim system, a lot of $$ You can replace the Cobra with a Volvo SX drive, it is more $$ than replacing with another Cobra, but maybe a better long term bet. Please note: the true King Cobra lower unit should only be used for the 7. The Cobra was a clone, kinda, of the Merc except it was a piece of shit. Aug 14, 2008 · The King Cobra to Bravo I is the same pattern transom cutout. You don't have to do anything to the drive other then bolt it on. Electronics/Marine (416) 751-7326 Home Page Feb 26, 2016 · Doug, think about this: Let's say that after having been given a fair example and testing duration (between Dog Clutch gear engagement and smooth Cone Clutch gear engagement), and after being offered the knowledge that the Cone Clutch gear engagement stern drive does NOT require a shift interrupt system of any type, I would be willing to bet that most people would prefer the Cone Clutch gear TOP MARINE© 242 Bd D'Youville Châteauguay, Québec J6J 4R6, CANADA (365) 649-1919 or (450) 977-0569 Apr 2, 2009 · My boat is a good example of a Cobra - Mercruiser swap. 0 motor that has serious cracks and has effected the running so that it has to be removed. Powered by a OMC 454 King Cobra Outdrive. Motor was always babied and is OMC jumped on their bandwagon 20 years ago when the copyrights expired for Merc. Fresh out of a full repower. The throw of the shifter must be changed. I am wondering what I might do to make this swap work. Converting OMC Cobra drive to Mercruiser style using SEI conversion kit- part 3 1990 King Cobra. 3L V6 5. 8 liter (351) motors, use the standard OMC Cobra lower unit gear-case parts. Convert a King Cobra to a Volvo SX; OMC Cobra to SX Drive Conversion: See Volvo Penta's brochure on this easy option for Cobra to SX retrofit! 1) Order 3857377, this is the transom shield kit and you need it no matter what engine you have. Last Friday it "slipped" out of gear. There is a kit that adapts the Merc Alpha dog clutch drive to the OMC transom unit, allowing you to leave the OMC transom unit in place. Apr 26, 2004 · The King Cobra should be bullet proof; at least compared to a Bravo. I guess the last owner didn't really care about it, he didn't winterise it and there I am with a cracked block which shoot water everywhere. Those old carbed 7. Aug 4, 2010 · I am currently running a 1973 OMC 140 HP OMC Stringer Sterndrive. the shift interrupt will most likly need to be rewired bypassing the ESA and wiring it like a merc. 62 Mod. The OMC should have a 4 barrel Holley and the Mercruiser will probably have a Rochester 2 barrel. It has a 4 barrel carb and I quess what is an ECM WITH a 12v coil mounted on top. The conversion does require an Engine Mounted seawater pump! OMC Cobra Conversion kit to a Mercruiser sterndrive Alpha One Generation 2. 8L EFI is a 351 Ford. Joined Aug 31, 2004 OMC King Cobra Conversion. Jan 3, 2015 · Ya still need the Mercruiser stuff to mount yer OMC dressed motor to a Merc drive,. Bondo types much faster than me!!! Sorry to hear that you have a 460 King Kobra. Electronics/Marine (416) 751-7326 Home Page Feb 24, 2009 · Hello fellow boaters!I have a chance to buy a 1991 Maxum 2100 with a blown 3. . I did have to relocate the front/side engine mounts. I'm hoping that I can get some help identifying my outdrive as I have had several people tell me that it was a Cobra and several tell me that it was a King Cobra Nov 25, 2009 · Re: OMC SEI Conversion The OMC bellows had the bottom of the bellows ground off like they put it on a table saw and cut it. Plus, I found a web link to Volvo that indicated that it does not sell a kit for the duo prop 2. 5 / King Cobra and will need to use the "fix" suggested by Pertronix for use with the OMC Electronic Shift Assist. I am wondering how much of a problem it would be or if it is possible to swap the OMC to Mercruiser. Could the OMC drive and bellhousing be used with the Jul 30, 2021 · You can keep your OMC distributor because some Mercruisers also used either Mallory or Prestolite. OK here comes the questions Is the cut out for the King Cobra the same as the Mercruiser for Jun 1, 2005 · Re: Converting OMC 800 to Mercruiser Alpha 1 Nothing is unrealistic, just depends on how much you're willing to spend. 3omc i/o and motor conversion to mercruiser I'm probably going to re-power a friends '87 OMC(Cobra) 2. ) The conversion would be fairly easy as it is a straight shot from the back of the manifolds to the transom - just need some pipes, clamps and flappers. Don S Honorary Moderator Emeritus. Dec 26, 2013 · Ok, I am converting over from a Volvo 280 drive to a mercruiser alpha. I was curious how involved the outdrive swap might be. Could all you mechanics out there tell me how long this will take. I realize your currently a Ford V-8, but as for what I'm refering to it won't matter the make of gas engine. 7MPI with a DP outdrive, the boat will be quicker to plane, faster top speed, and get a HUGE increase in fuel milage. 400 and 800 series outdrives. Sep 13, 2023 · I believe SEI makes a conversion adapter to put a merc leg on the cobra transom shield. 3 Cobra. 351w king cobra set up. You don't even have to drill any holes! I did the conversion several years ago with a 24'. I don't believe that setup ever worked, and that is as far as the guy ever got when he found out it wouldn't work. 7 liter 260 V8 GM 800 / Cobra applications OMC gear ratio and outdrive tech specifications. May 12, 2016 · Crash Override 1989 Bayliner 2455 Ford 351W (5. When I installed my OMC inner plate I realized there is no hole to run the shift cable through. If I really loved the boat, I'd just repower if it were me. Hope this helps Mar 16, 2010 · I found a write up of a person who did the conversion using the exisitng 460 King Cobra power , he swapped out the old King Cobra Leg for a Volvo Penta DP-S . If using a fuel injected motor with the shift bracket at the front of the engine the throw of the shifter must be changed and a new shifter may need purchased. According to SEI their kit will only work with the COBRA and not the KING COBRA. bruceb58 Supreme Part Number(s) Included PerTronix 1563B GM 4. I did do a search in the forum, but not finding a clear answer. My BIG hangup is the hole in the transom- I've seen a couple posts that say the Cobra and A2 cutouts are the same. Nov 25, 2007 · I replaced a 340hp OMC King Cobra with a 330 hp 454 Bravo III. The new motor will come with a template and drilling instructions. SEI-90-117-02 Replaces Cobra Lower Unit Counter Rotation – dealer code: 00s529 OE 0986673 Cobra Aftermarket Sterndrive Conversion Kit to install SE116 (Replacement Alpha Gen 2) Drive Manufactured by SEI. Other than that, the transom cutout & mounting is the same. May 14, 2021 · 4. Turned out it was the shift switch. OMC King COBRA 88 & 89 Rebuilt Stern Drive. Here is my version of the question: I have an 89 Four Winns 285. 7 liter Engine manifolds, elbows - risers, bellows 4. Replaces 1986-1993 Cobra drives that shift in the lower unit. 00 Read more. Sep 2, 2013 · Hi Folks, I just recently purchased a 1990 Forrester Caspian 2100 Limited Edition with the 5. <br />If I may offer some advice. (BRP) in March of 2001. The Mercruiser transom assembly bolts up to this plate. 00. Aug 14, 2004 · Re: Converting 1977 OMC Stringer electric to newer cobra drive. For the Ford OMC, it can also be tight. Aug 14, 2011 · Re: Omc conversion to volvo sx drive Yes this is the only cobra to volvo conversion on the web! and I have read this one through and through. The kit is designed to work with an SE116 drive but can also work with an original Mercruiser Alpha 1 Gen II drive with slight Step 7: Bypassing OMC ESA module® Step 8: Optional and untested additions. Prestolite distributors must have the original breaker plate, complete with with points and condenser in order for the 3PRE8U1/3PRE8U2 ignition conversion kit to fit. It goes about the same speed as it went before. 0 OMC. The OMC Cobra was used from 1985 into the early 90's. SEI offers a conversion kit to replace the OMC Cobra outdrive with their Alpha 1 kit. However, there really Conversion Kits for the drive. Nov 7, 2021 · FYI……. OMC wanted a record to help promote the new and improved King Cobra. Question I have is, and I can't find it May 17, 2012 · Re: replace mercruiser 5. C. I have already wasted a month trying to get part form aftermarket marine, and i'm giving up on them. Apr 5, 2013 · Re: OMC King Cobra to Mercruiser conversion Thanks for the welcome, believe it or not, ive made my living for the past 15 years being a professional rigger and sailor, no stranger to 'boat access'. Apr 6, 2010 · I have a 1988 OMC Cobra 3. I also want something that's as simple and reliable as possible, without breaking the bank. Converting From an Older OMC to a Mercruiser Our Transom Hole Adaptor Plates are no longer in production. I have a GM block and it is easy to find replacement parts. So many choices. That said I would not buy a King Cobra because of part availability. Don't commit to OMC sterndrive, especially Stringers. I am going to attempt the SX conversion, the Techs at Marine Parts Express have assured me it's a bolt on replacement. May 1, 2017 · General Q & A - Omc cobra outdrive vs king cobra outdrive - I have an 1988 19' invader boat with a v8 motor in it. Drive Bolt and cut out patterns 4. Get rid of the OMC outdrive to finance your project. Aug 8, 2009 · Re: To OMC Users: OMC Cobra VS Mercruiser? I had one too. This has to be done right and you should find a fiberglass person who is experienced in such a modification. Yes, you will need a Mercruiser prop for a Mercruiser drive. 7 GI into my Chris Craft 282 Crown. Rather than spend a small fortune on spare parts like water pumps and bellows, what issues would I We sell kits to convert a Volvo Penta 280 or 290 to a Duoprop, a Volvo Penta SX to a DP, or an OMC or King Cobra to a Volvo SX. It's supposedly an aluminum casting that bolts right in the omc hole. 3. 7 liter (350) and 5. For the 5. Mar 2, 2019 · 1989 Bayliner 2556 Convertible OMC Cobra 5,7L gear ratio: 1,41 3х15,5х13P Apr 18, 2015 · Has anyone attempted the conversion from OMC to SEI 116 ster drive? I'm having a hard time getting part for my cobra or finding a replacement cobra. The outdrive has "King Cobra" decals, but from research I have determined its a standard Cobra (does not have the hump on the upper). in fact, the Volvo Penta conversion preceded the A drive conversion! This Cobra lower unit will fit Cobra Sterndrive from 1986 through 1993 4 3/4 Bullet diameter case Does not replace King Cobra Does not replace 4 cylinders units with 4 1/4 bullet diameter case. I pulled out an OMC 460 King Cobra and replaced it all with a 454/Bravo III combination. The smaller Cobras can be replaced with the SEI (conversion) drive. May 17, 2013 · I am going to replace my OMC outdrive with a mercruiser using a kit that is commonly available. Just max rpm is about 300 lower. Does NOT replace King Cobra drives. They re-tooled and came out with the king cobra, that's what we raced, and we only raced it because they gave it to us. If I didn't love the boat, then #4 would be my option and then not have to worry about parts again. 3PRE6U2, 3PRE8U1 and 3PRE8U2 ignition kits must be used with stock Prestolite distributor breaker points plate. We only recommend and warrants use in applications not exceeding 300 HP. Cobra sterndrive *800 OMC parts *Mercruiser outdrive videos T. Jul 7, 2009 · Mine is a 1988 OMC 3. 1987 Wilker Catalina 4. It is for a 460 but there is not much info in this article either. Jan 7, 2009 · Re: OMC Cobra to Volvo Penta DP-S Conversion Don, thankyou for the link to your document showing your conversion on the Bayliner 2858 going from OMC King Cobra to Volva Penta Stern Drive. I'm quite sure this is the later version of 1563B General Application / Compatibility This would be used to convert the standard OMC Cobra 4. bellow) • Mounting details (hose clamps, bushings, fittings) • Shiftcable • Mounting instructions Aug 9, 2019 · Don, the conversion kits allow the use of either the Merc A drive, or the use of the 1994 and later Volvo Penta SX or DP-S drives as a retro-fit to the OMC Cobra transom unit. This kit is designed to replace OMC Cobra drives that use a clutch dog in the lower. So for about $1800 you can get a partially new bell housing and a brand new lower unit that will work with your OMC engine setup. I think that Volvo Penta parts will work with OMC Cobra as I beleve that Volvo bought the stern drive division of OMC from Bombardare. It is often easier to find parts for it than for the KING Cobra. ©2009 Sterndrive Engineering Feb 24, 2016 · 1987 2450 Sunbridge 350 cobra with OMC outdrive What are everyones thoughts on OMC vs Mercruiser outdrives? How difficult would it be to swap from OMC to May 15, 2016 · I have a 1992 Four Winns Vista 235 with the Big Daddy King Cobra cone clutch outdrive and a Ford 351w motor. 8, 185 hp stringer. So Nov 23, 2011 · Are there any threads on here dealing with rebuilding a transom to swap an OMC stringer to a Mercruiser? I have a boat that I would like to hang onto but do not wish to put money into the old OMC stringer. You're needed here! Someone is considering an OMC I/O. I don't know if the standard OMC Cobra drive is the same, but the OMC King Cobra is an even swap to a Bravo. You're basically 50% there with no engine or drive. I do not know if the lower unit componets will bolt up to the Mercuser stuff. Does not replace King Cobra drives. Jun 2, 2006 · Re: 4. The Shift Interrupt system (aka ESA) must remain. This is a clutch dog unit. Nov 10, 2009 · It runs, at best, 18 mph. Aug 25, 2009 · Re: 4. adapter plate - I've never seen one but outdrives. They have a history of problems, and now parts are becoming very hard to find. Aug 15, 2005 · Many people recommend going to a Mercruiser outdrive because they are more dependable. You may need to purchase a new shifter if your current one cannot change the throw of the shift Jul 12, 2012 · Part one of installing SEI OMC to Mercruiser conversion kit. Parts are plentiful and you'll need 'em. 3 I am running the 4 barrel Weber. The Bayliner interior is pretty shot and the Maxum is immaculate!! Mar 31, 2007 · Just an FYI OMC stopped producing engines and sterndrives in 1998 after its "arrangement" with Volvo Penta (from 1989 to 1997) dissolved. Larry,<br />IMHO it's Mercruiser or a bracket and an outboard. Convert your Cobra Drive to a SEI-116 drive or to a Mercruiser sterndrive Alpha One Generation 2 with a slight modification. 4L (454) and 7. 0L Alpha 1 gimbal and drive? I removed an 87' OMC 460 King Cobra and replaced it with a 97 Merc 454/Bravo III Jan 26, 2011 · Then go back with either a Complete Mercruiser, or Complete Volvo driveline. 0L engine. My question would be what to do with the old This is my Conversion of my OMC Cobra Sterndrive to the SEI 116 Sterndrive Engineering outdrive using their Conversion kit. Oct 28, 2013 · Nope. I don't need more power, so I'd be satisfied with a 4. My 2 cents The OMC Cobra! The King Cobra parts are perhaps more difficult to source. It Stern drive history of OMC 800 years 1978 to 1985 and Cobra years 1986 to 1993 models manufactured by Outboard Motor Corporation. net Sep 25, 2023 · I am happy to see that there are kits that allow both the Merc A drive and the Volvo Penta SX or DP-S as OMC Cobra conversion candidates. The throttle action on the Mercruiser pulls where the OMC pushes to open. I also have a 1988 Bayliner Capri with a 3. 0 alpha one with king cobra v8 If both blocks are chevy you can swap in the OMC engine, keeping the merc outdrive. The SEI is designed to replace 1986-1993 Cobra drives that shift in the lower unit. 4 King Cobra No conversions for the Cone clutch King Cobra. The boat runs good with the same prop previously used on the 454. 4L engine and Bravo III drive. Check the boat trader and Craigslist. Will Not replace King Cobra or 4 Cylinder installations with 4-1/4 inch Diameter Bullet. Sep 16, 2017 · Hey Boaters, I have a 88 Galaxie Boat works with and OMC 350 motor. I got the impression that the bolt pattern and hole in the transom is SEI OMC Cobra Conversion Kit. My brother bought the boat new in 1987 and it basically went 20 years with few problems. Note: It is recommended to disconnect the battery before starting this conversion. OMC's marine engine assets were acquired by Bombardier Recreational Products, Inc. Like in a pickup. The 470 would give me additional power, and the ability to trim up the outdrive whereas the OMC drive knuckles will not. 0L Find a 1988 Mercruiser 3. The Cobra unit is the OMC version of the Mercuser. Sep 21, 2013 · The adapter wex mentioned only makes it possible to mount a Mercruiser drive onto an OMC Cobra transom assembly by replacing the mounting bell and associated connection hardware. 7 liter (possibly was a King Cobra). Sep 11, 2008 · Re: OMC Cobra Drive vs Mercruiser Alpha 1 T-daddy where are you? Get out of the head. But 2 local shops have said "Oh NO it's totally different- and you'll have putty Apr 24, 2006 · Omc To Mercruiser Conversion. Lower unit needs a reseal, water was present in the gear lube but the drive was not blown. 3 conversion. There are parts that are hard to get (not impossible). Mar 14, 2008 · I have been seriously contemplating doing a complete repower (engine & outdrive) for a few years. King Cobra, yes. the petronix set up likes 12 volts to it, the purple/red wire that comes from the back of the alternator is a resistor wire and doesnt have the power the petronix needs to operate. It has an OMC 460 King Cobra in it that is completely shot. I just did this about 3 weeks ago; meaning I converted an OMC Cobra 3. Conversion parts are just as easily available. This conversion gets you away from the dreaded "dog clutch" gear engagement! No more SI, SA or ESA required. I can find 4 & 6 cylinder lowers on Jun 22, 2011 · The OMC to Mercruiser conversion docs are readily available on the net, as I HAD them when I was considering a fix-r-upper w/ a bad OMC on it. SEI OMC Cobra Conversion Kit The SEI is designed to replace 1986-1993 Cobra drives that shift in the lower unit. You could likely do the same thing but you would need to get all the Mercruiser specific accessories to put on that engine + the ignition and carb if Feb 4, 2010 · Now they have a conversion kit that lets you use an OMC cobra engine and bell housing with one of SEI's Alpha 2 compatible lower units. In this video, the SEI packages are unboxed, and the upper and lower SE116 unit are joined. There was defiinitely some issues like mounting the water pump , new shift cable but judging from the write up it sure looked doable. A good fellow boater friend of mine told me that finding OMC parts are just terrible to find. 0, 5. The out drive is an omc cobra outdriv le but the gears are all stripped out. The whole point is to get away from the OMC Stringer, no matter how good it runs. I also have a wrecked Mariah Shabbah with mercruiser 540 600hp and Bravo 1 imco lower. Jun 17, 2008 · Hey everyone, I posted a similar thread before asking if my 1985 5. Drive mounts 3. Joined Nov 10, 2002 Jun 14, 2010 · Re: 1989 OMC king cobra drive Yeah. Twin OMC 5. If so, you can buy 33C cable adapters that will allow them to work with the Mercruiser. I'm told the outdrive is okay. Jul 26, 2007 · I have a 1990 Advantage PartyCat 26'. The motor is coming out of a junked out boat. I know that it has been discussed here many times, but can anyone share how they actually Jan 15, 2005 · General Q & A - stringer 800 to Merc. 12156-omc-king-cobra-to-mercruiser-conversion . 3, 5. I have always used the Another option is engine conversion kit that can be used with your existing Mercruiser or OMC Cobra/Volvo SX 3. I'm the only one here that likes OMC (Cobra) I/O's. 5 liter (460) motors. Apr 5, 2013 · What you have to do is first get all the OMC stuff out of the boat, make sure the transom and stingers are all solid, then the Gimbal housing for the Merc has to have a new gasket installed and intalled on the transom. So did some googling and came across SEI who do a conversion kit. Joined: Apr 2006 from a 86 Cobra tha same as a merc Alpha, also will an Jan 22, 2010 · I recently purchased a 1987 Bayliner 2850 Contessa Command Bridge. The issue with parts is a real one though, so far I have been able to get what I needed, but the trim senders are NLA, the exhaust manifolds (one piece units) used on the older 4. In the past I have stubbornly suggested that IMO, the best OMC Cobra conversion would be going to a Volvo Penta s/p C or DP-C, and in a complete change-over, rather than a conversion. Would a king cobra outdrive bolt right up to replace the cobra outdrive? The king cobra outdrive also came off of a boat Oct 15, 2018 · Engine: King Cobra 351 5. For a 23' bow rider, I would be looking for a Volvo 5. I have replaced the transom and had to tear out the motor beds in the process as the were wet. Or a complete alpha will fit the omc key hole cut out. 0 mercruiser engine for dirt cheap. 3 OMC Cobra: 2bbl to 4bbl Conversion Update I recently repowered my 94 Bayliner 1850 LX 4. But are both engines chevy? This is my Conversion of my OMC Cobra Sterndrive to the SEI 116 Sterndrive Engineering outdrive using their Conversion kit. I'm repowering a boat for a friend, and am considering this plate. You would need everything but the long block. Manifolds are available but hard to find. Everything you encountered looks EXACTLY like my 1988 26ft Bayliner Cierra, Leg, Motor , Engine Compartment, Shift Cables, etc. I'v owned the boat for about 5 years. 0 or 5. OMC Cobra to Mercruiser Conversion Mar 3, 2010 · Drives and Lower Units - OMC-King Cobra-- 496 XR or Bravo Conversion - I would like to know what the issues I face for a 351 OMC King Cobra to a Merc 496 with either an XR or Bravo Drive. Apr 28, 2017 · The Cobra system may being using Morse 33C style cables. The Merc A is a dog clutch drive and would require the ESA or SI or SA . The stringer drives are a pain to work on, always a potential for the drive boot to leak, parts are expensive, not to mention the re-sell value of the boat will be much better with a Mercruiser. X Demension Any advice, OMC Cobra Conversion Kit Return to previous page Mercruiser Rochester Carby Kit Merc V8 228,255,260,280,330,350 Volvo V6, OMC V8 $ 98. A frantic google search turned up Conversion kit $550. SE116 1. Nov 22, 2007 · Re: OMC VS Mercruiser I had an OMC Cobra for over 15 trouble free years so you are not gonna see me say don't buy one. Lou C Supreme Mariner. The Only commonality 'tween the OMC, 'n the Merc is the transom hole, which will still probably need some "Tunin' " Rick did a 460 OMC King Cobra, to 454 Bravo III swap a few years ago, I'm sure he'll be along shortly,. OMC made a great package, but they are no more. 8L HO Outdrive: OMC King Cobra (I can't seem to upload pictures yet, will continue trying) It's major flaw is, the original OMC King Cobra outdrive is removed and in pieces. Oct 9, 2006 · If I change my I/O from it's present OMC 800 to a Mercruiser system, which Mercruiser will work on my particular boat? I have a 1984 Proline 23' walkaround with a OMC 3. 3L Volvo Penta DP-S1, including VP gimbal housing and bell. 3 Mercruiser, with a self built and modified 4. Buy Electronic Conversion Kits- Mercruiser And Omc Sterndrive Cobra. OMC Mar 30, 2008 · Re: OMC Spitfire ignition conversion first properly ID your drive, easiest way I know is to look at the shift cable entry. 8l) OMC Cobra Mods: Custom pulpit, 8 million candle power of LED lighting, Lowrance Hook 5, Uniden UM380BK VHF w/8' Whip, Custom 3,000lb cable drive winch w/150 cable+rode, Sound system, upgraded sleeping quarters. All they are, are drain holes. 0L to a 4. If your cur Jun 8, 2018 · Finally, we could not find the reason for the overheating of the OMC 454 engine with the king cobra drive on high RPM. 2) Add a seawater pump kit according to the following table: (The Cobra Outdrive had a seawater pump built-in) Aug 13, 2003 · Re: 4. You will have to keep the exhaust, maybe the carb and electronics from the mercruiser to put on the OMC engine. I looking to possibly swap out the OMC stuff and go Mercruiser. I put a brand new Volvo Penta 5. Sounds like you need a new mechanic? The transom cutout is the same if you do swap. If you have the large rubber boot you will have to fill in the transom and re-cut the hole. com has them for apx $700 . 4L 454 OMC King Cobra Complete Set Up - Hi all, we have a complete 7. 3 Mercruiser motor and drive that is in nice shape. if it enters the bell housing low on the stbd side its a dog clucth king cobra, if it enters about midway up the bellhousing on the port side its a cone clutch king, I dont think the cone clutch was still in production in 1990 but it could have been. 280 DP 280DP 290DP Alpha 1 Stern Drive Bravo 3 Bravo 3 2006 Bravo 3X bravo ii Bravo III Duo Jul 15, 2012 · Re: Converting an OMC King Cobra drive to the new Volvo Penta DP-S dual prop drive. Nov 17, 2007 · Re: Replace OMC Cobra with Mercruiser well to convert it you will need the shield and drive assy for the alph, with minor mods to the engine,including manifolds and risers, the OMC engine will work. the OMC Cobra is also a candidate for a conversion to a Volvo Penta SX or DP-S "cone clutch" drive. It has run fine for two seaons now after about a $1000 investment in the ball gears, bearings, and a water pump. Conversion Kit Replaces Sterndrive Cobra Sterndrives from 1986 to 1993 that shift in the Lower Drive Unit. how can i tel what i have? what is the Apr 16, 2008 · Sorry to ask this, as I'm sure its been beaten down already. With this kit you can simply convert your old Cobra drive to Alpha One Gen. These kits include an engine, flywheel, exhaust manifold gasket, fuel pump, and coupler as a complete kit. I also have a 1980 Sea Ray donor boat with a Ford 302 Mercruiser sterndrive (pre-Alpha). You do not have a lot of good options for replacing your drive. While you might like the hole shot and slow speed/reverse handling you would spend a small fortune doing it. Can't argue with Alpha since that's the majority of what's out there. 7 liter Mercruiser + Alpha One outdrive would line up if I were to install it into a 1988 boat that had an OMC Cobra w/ 5. With the drive down most of the exhaust goes out the drive anyway. I speak from experience, having owned one for 6 years or so. Took a pile of measurements and pictures as well as saved the old beds for reference. This kit contains: • Bellhousing (incl. Pay careful attention to getting your CENTERLINE properly marked and your "X" DIMENSION exactly as stated in the book. Discussion in 'Propulsion' started by sswhite, Apr 24, 2006. With the new distributor I know longer need the ECM. Jul 29, 2014 · I have a 1987 FourWinns 211 Liberator and I completely removed the OMC King Kobra 460 (+ older Dog-clutch drive) and replaced it with a complete 1997 Mercruiser 7. Jun 8, 2015 · was reading about a SEI Cobra Conversion Kit to a Merc Alpha 1 Gen II. Want to go with injector instead of carburator. It is a project boat. 1991 King Cobra 280 DP 280DP 290DP Alpha 1 Stern Drive Bravo 3 Bravo 3 2006 Bravo 3X bravo ii Bravo III Duo Prop mercruiser OMC OMC King Cobra Jun 13, 2007 · "I have a 1990 21' Lavey Craft with the OMC (Ford) 460 Big Block. So I am looking into the mercruiser engine. 3L OMC Cobra Conversion From Points To Electronic Ignition. This part is guaranteed by SIERRA's limited part warranty FREE Shipping on qualified orders - Boats. Customer opted for an EFI repower. $2K for Mercruiser gen Sep 11, 2007 · I am thinking of converting my 4. I have located a 4. My questions are as follows: 1. 4's are gas guzzlers. 0L. Jun 6, 2017 · I have a OMC King Cobra outdrive with a 454 king cobra engine on a 1991 Chris Craft 252 crowne. Next Oct 18, 2013 · Finally Finished OMC Cobra To SEI116 Conversion 10-18-2013, 07:19 PM Installation was easy, adjusting shift cable was impossible, the OMC setup does not give enough throw to fully engage fwd and reverse. Oct 25, 2008 · Anyway I am one of the few OMC supporters here, having had pretty good luck with my 88 4. 47 Mod. 7 which is what mine is. 3 OMC I/O to a thru hull exhaust (for performance, sound, etc. 1 in stock. TOP MARINE© 242 Bd D'Youville Châteauguay, Québec J6J 4R6, CANADA (365) 649-1919 or (450) 977-0569 Jan 27, 2015 · I have an OMC Stringer and an OMC drive. 7 (Chevy) V8 and OMC Cobra outdrive. 3s are too. Maybe best to look in the direction of a different boat with better power combination than the pinto engine coupled to a problematic first generation OMC Cobra. OMC 8-Cylinder Marine Engines . 7 with Cobra outdrives. I've been looking at the posts online for the 460 and I've been looking for parts and I've concluded that there Oct 17, 2023 · OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives OMC exhaust manifold 4. I recently took my brother out in the boat (he bought it new) and he said it goes like it was "new". You will need a Template, which is made by Mercruiser and a Drilling Fixture too. My mechanic has never done it before and is no idea how long. And the economics don't seem to justify an upgrade to even the DP-S. 3L V6 Ignitor Ignition Module and other assorted parts as pictured. OMC Cobra to Mercruiser Conversion Aug 26, 2014 · Converting from the OMC Cobra to a Mercruiser A drive, or to the SEI A drive knock-off, would be swapping one Dog Clutch drive for another! Consider finding a good used Volvo Penta SX or DP-S drive for the conversion. Dec 12, 2004 · OMC Cobra 5. 4L 454 dressed, strong running freshwater motor. 7L what type of coil do you have is it the flame thrower or is it the standard type. If you have the flame thrower petronix will tell you to run a wire from the ignition Jul 12, 2012 · Part 2 of converting OMC cobra outdrive to Mercruiser style using a SEI conversion kit. Jan 29, 2012 · Re: Electronic ignition conversion on OMC 5. 0L / 5. Complete (Replaces Mercruiser Gen II) $1,955. nksyi hozlmb cecjy wxr rujpm qohr lbqg yrkaqz cyvgutatk ucchy iqrilza oqbzq srqx cwdlbf uxaz