350 car engine in boat. I've got a 351 in my car that came out of a boat.
350 car engine in boat. Intake manifold bolt angle changed at some point.
350 car engine in boat Anyone contemplating re-powering an inboard or stern drive has likely been We finally got the starter out of the Mercruiser Chevy 350 I/O. It is best to use a 4 bolt main block for a boat. Jason. 00. Since car engine compartments are OPEN at the bottom-no Problem Jango, Nov 30, 2005 #2. THE CHEVY 350 ENGINE BEATS AT THE HEART OF THOUSANDS OF TRUCKS, SUVs, PASSENGER VEHICLES AND MARINE CRAFT. Read more about the Marine Chevy 350 small block engine swap to get the best performance out of your four wheeler. . They come with marine camshafts, marine gaskets, marine freezeout plugs etc, etc however, these do not come with the water pumps. its not a drop off. Exceptions will be: Oil pans are different between the 2pc and 1pc rear main seal engines. I know the head gasget is different and I have a bet with a friend that marine engines have different internal componets. Also, how about regular car batteries as opposed to "deep cycle" marine batteries. And speaking of cars and Holley carb fans. The 350 blocks where hp or truck blocks. I would recommend the 30 or 40 weight oil that the service manual says. - 4 Wheel Drive And Off Road Magazine the marine 305 that i worked on where no different than a car block. GM DID make a 300 HP crate engine with the "217" heads on it. The component parts of a marine engine are much different than that of a car engine. 94 vavles. On my 1985 Sea Ray OMC with the 350 block, I had a problem with bilge water getting inside my starter and also into my tilt motor. Chevrolet engines can be converted for marine use with a few simple modifications. I put a marine cam and starter in my engine and I had 1 speed forward and 4 in reverse. Although some automobile parts look Hello. 7l is marinazed version of Chevy small block 350 engine. If you post a build sheet we can help you get it sorted out. swap core plugs, head gaskets, circ pump. What are the differnces between a car and boat engine as far as internal parts. You might also want to indicate what vintage 350 and 305 parts you are useing. So I have always wondered, do car and truck engines normally have a windage tray? But didn't GM (in OEM installations) use a different cam in SBC 305/350 powered cars vs pickup trucks and vans etc that might be used for towing? Scott Danforth Grumpy Vintage And then the ECM makes adjustments to timing, fuel mixture, etc. Unlike a car engine, boat engines run at a continuosly higher rpm. And the marinization is: 1. It is always under the load and oil will shear faster than on a car engine, hence, the beefier stuff is your friend on the water. You might want to find a pair of heavy duty 350 truck heads (76cc). Sterndrives use left hand/standard rotation engines. verify how much it will be to buy a remanufacture one. For a marine engine with a Closed Cooling system, the automotive Circ pump will work OK. Sounds like a winning combination in my book. After If you have a GM 350 in your boat already and are just needing to replace/repower then in most cases the blocks, heads, etc are the same as a "truck" 350. Jun 5, 2006 880 1,254 Irvine, CA Name Clyde Boat Name 252 GW Sailfish “Rosie” Apr 12, 2015 In this video I discuss the features, pitfalls, and differences between truck/car engines and marine engines. Marine Versus Car Engines: Learn the Difference Between Marine and Car Engines. Our Florida location provides you with affordable marine engines and parts. However, there are a few things to Marine engines are designed to run fast, with a huge load, for long periods of Converting a car engine into a boat engine may seem daunting, but it’s easier than expected. 4200 seems a little low for max rpm. They couldn't get their testing machine to work. While they may seem remarkably similar at first glance – both are internal combustion engines, they are designed to operate in drastically different environments and under unique conditions. The engine features an overhead valve (OHV) design, which means the valves are located in the engine block, rather than the cylinder head. I can give you feedback on what I've witnessed with mine. Remember Re: what makes a chevy 350 a MARINE engine? With the flat-top pistons, you want heads that are near 76cc chambers. I wouldn't be surprised if your shop built you a car engine instead of a boat type. The exhaust manifolds I have found the 350 I want to put in the boat. GM's Vortec 5700 Marine Engine. I have known a few people to use Marine cams in street cars. 5. 5. The engine was origionally a LX5. Gas and diesel marine mechanic. Houseboats. At least the single engine race boats. 7 350 for the motor, i am not loaded with money. At the heart of this discussion lies a fundamental understanding of the differences between car and boat engines. The motor had the 76cc chambers heads,with only 170hp stock. Auto vs. 8 VW VR6 GTI Engine swapped into a boat was posted on VWvortex and Youtube. Ford left the marine engine market for 20 years, and it wasn’t until 2013 that they jumped back into it. Since oil starvation can be a problem, we decided on Holley’s LS oil pan With the engine set in the boat, we’re done with part one of this installation. there is no coasting like a car engine. Would think you On my 88 model 300 Weekender with twin 350/straight inboards, I believe the port engine to be standard rotation and the starboard to be LH. hystat Outstanding Contributor. On the other hand, a marine engine is essentially at full throttle all the time just to move it through the water, so it has to be pretty heavy duty to keep up. could use the pistons also the cam. So if you build A boat engine is either fresh water-cooled which means the coolant is in an enclosed system with a heat exchanger or a raw water cooled system which sucks water in, cools the engine and is discharged or dry stacked with a keel cooling unit. The car cams make more horsepower, the truck cams make more torque. We ended up picking up a reamanufactured 350 marine engine and dropped it in. There are a few components to change over and Marine-ize it. nascarfan7. 8mph a stock 350 would probably push it harder . KerryK1965. This experiment worked for me, but I cannot guarantee the same success Re: marine engines versus car engines That brings a question. Pontiac built the engine for the 1970–1976 model Can I put a Chevy 350 car engine in my boat to replace my 350 merccruiser? If the answer is yes, what is involved? Is I bought a 5. Car Specialist. Boat engines spend their life in top gear going up a 20% grade at 75 to 80% of WOT RPMs. Right hand engines. If both engines rotated the same directions, the boats would simply go around in a big circle. I currently have a Rochester Quadrajet. It’s imperative that marine engine builders build and rebuild these engines perfectly. I know the drain plugs would need to be exchanged, and I know the crank is different. Mercruiser 350 magnum ski tournament. Marine engines are designed to run fast, with a huge load, for long periods of time. It has a displacement of 5. Boats generally need low end to move them, and don't have real high running rpms either. You just need everything else from the marine engine to put in it. I agree with the tolearance issue. Ones that are any good that is. 7L/350 CID MPI Bravo Trun Key Engine. if your engine runs on raw water use marine gasket. 7ltr V8 Mercury MerCruiser. Flywheel crankshaft flange and bolt pattern changes between the 2pc and 1pc rear main seal engines. But like I said, marine engines come straight from the auto mfg. The process involves a series of modifications and adjustments to ensure that the engine can function efficiently in the unique Some 350 car engines are less than two hundred horsepower while the marine 305 can be A boat has a solid hull under the engine, a car is open to the atmosphere. We have thousand of hours of actual, practical experience building 350s at any level from stock, OEM specifications all the way to fire breathing, pavement-melting custom The marine engines have mild cams, not because they want to leave power on the table, but because they have to balance the engine performance with the physics of a wet exhaust when the engine is running at idle speeds. My first thoughts are to start with a core from a 87-88 corvette maybe a L-98 350 TPI with aluminum heads. 0-liter, four-stroke SOHC VTEC BF350 was announced today as the company’s first commercially available V8 Discover the reality of adapting a car engine to a marine environment. Aug 19, 2010 A 350 car engine will be turning 6000+ rpm when it is making 300HP If you want 300HP in your boat, you have 3 options really: 1. If you put the wrong starter in the rotor will turn counter -clockwise. So what does a marine engine have that allows it to run at these extended periods of time that a car engine does not? 350 marine vs 350 automotive? Reply. When running the 350(car engine,car pan,no windage tray,melling hv pump) I did see a drop in oil pressure after extended high rpm run, but " Ok well lets see, are the pi" Ok well lets see, are the pistons and heads marine specific? if not then a good quality 350 long block fitted with manifolds intake and exhaust and all the other goodies is all thats needed? on the other hand if the heads and pistons are specific to marine use then a donor block which has been line bored etc. It is 4 bolt, vortec heads, 9. , Failure Analysis, Expert Witness. Reply. Mine corroded badly, but still useable. The marine engine has a different alternator, distributor, and starter from a car engine. The same engine now comes with "062" vortec heads and makes an extra 30 HP. 7 liters (350 cubic inches), hence the name. Piston go in different. Just swap out all of the Marine stuff to the newer engine. 1,122 Satisfied Customers. Soon, you won’t have to be running a race team to get a sweet Honda V8 engine. Most, if not all factory marine engines have windage trays to help with this as well as oil coolers. just dont use ( Rapido-Marine ) I personaly have a very bad experience. It is a derivative of the Chevrolet small-block V8 engine, which That all said, a marine engine would be a nearly unstoppable force in a car. When was the last time your thought of running your car at full throttle for a sustained period of time? Shop the Engine Store . The 5. The electrical system in particular (including starter, alternator, etc. These are hard to find from a car or truck these days. "Hi men, I have a 1987 350 CID, 260 hp that needs a set of batteries. It is very unlikely that you operate your boat engine in below freezing temps, so the need for the 10w oil in multi viscosity oils isn't needed. The main reason for using the "thicker" oil is that on a boat engine, it constantly gets a workout. Many 305 heads have smaller valves than the 350 heads. How Fast Does a 350-Horsepower Boat Go? Generally speaking, a 350-horsepower boat can reach a speed of anywhere from 45 to 60 miles per hour or around 39 to 52 knots. junkyarddigs. Joined The 2 truck engines didn't have a windage tray, but all the boat engines did. The Merc 350 mag (standard head version) used an intake equivelent to the rpm. David The camshaft is designed to marine duty requirements as needed to move a boat versus a car. From what I understand my MerCruiser 5. TRUCK | CAR | RESTOMOD | BOAT POWER PERFECTION . Is this a first gen small block? I plan to start stock piling parts to build a new engine for it. Isnt a different head gasket used also? Scaaty Hi: you will need to use many parts from the damage engine to make the one from the truck to be marine. I have a 3. The connecting system is simple—just connect your car engine to the shaft of your boat propeller with some sort of connector (a universal joint or just some rope). A boat engine is mated to a reduction gear. Marine Engines The service life for a marine engine may range from 500 to 600 hours, while that of a 1,000 hp-plus engine might only be 200 to 300 hours. 7L EFI, & 350 MPI sterndrive Bravo models. ) will not meet USCG standards and will produce sparks, which is OK in a car/truck where there is constant air flow, but can cause an explosion in the bilge of a boat. There is no difference in the block, or the machining tolerances that I'm aware of, but the power demands are different I am thinking about putting a direct drive boat together because i literally have all the parts for it but i have never had a car engine boat, all i have ever had were aircraft engine boats. But yes a automotive block will work. Strangely enough from what I recall most if not all the old 350 marine engines we disassembled over the years had 2 bolt blocks. A marine application is a. i think thats what is made of is rusty bad. I have it right at TDC. the block and head design have went unchanged seince the Converting an automobile motor to a viable marine engine has been going on for years. Ahh. Apr 2, 2012 #18 Re: difference between car intake manifolds and boat my 89 cast iron. But I'm curious. Staff member. Can I put a Chevy 350 car engine in my boat to replace my 350 merccruiser? If the answer is yes, what is involved? Is. Engine Modifications. The "truck engine" is usually used because Marine and Truck/RV cams are in principal the same, and the load requirements are Boat Engine Parts Outboard Motor Parts "Check out the car link to see when it comes to the 350 engin when it comes to the 350 engines the only difference between the years is the addition of the bosses in the lifter galley to bolt down the retainer bracket for the roller lifters. I've seen too many "racecar" motors put into boats that just never ran right. Even if you find a running 350 car engine swap as long as compression is stock drop in a marine cam and the above parts. (350, M22, 3. However, there are a few things to consider before doing so. A car is mated to a transmission. I belive I should replace the oil seal on the front What should the timing be set at on a 350 chevy marine engine. Unlike a car, boats tend to bounce around a lot on the water. the engine block and heads will work also the intake manifold. 7L 350 Vortec engine for my 1992 Sea Ray Sundancer. Unless the 327 came a 60's era boat, chances are it could have come out of a car. com/Send us stuff!Junkyard DigsPO box This video is a total removal and reinstallation or a small block 350 5. Casting # is 1024388C. ways under heavy load while a car has a transmission and free wheels part of There a ton of 350 GM engines out there in boats. Does anyone know the "cold cranking" amps needed for each? If I remember right they should be at least 650 amps each. if its the same intake or will work i want to replace it over the winter. a 350 longblock truck motor is similar enough to the 350 marine Most marine engines have seen salt at some point in their lives which soaks into the pores of the iron and it can never be fully flushed out. Several things were quickly learned. I have a 1978 350 Turbo Automatic Transmission that I would like to bolt up to a newer 1 piece rear main seal style. The overall duty cycle of a marine engine is very different than that of an automotive application. Gasoline engines can provide strong, reliable power for boat propulsion. Can a 350 Car Engine Go in a Boat? Yes, it is possible to put a 350 car engine in a boat. The simple answer is yes, mechanically you can do that. and put a Marine motor into a car, but that was a I have the chance to buy a used Mercury SBC 350 marine engine. 7-liter engine in a Merc is a marine version of the 350-cubic-inch Chevy engine, and so on. I've heard of a reverse rotation 350 option for these boats also but The marine 350 and the automotive 350 are two distinct engines that share a lot of similarities, but also have some major differences. Marine engines also cost a lot more, if I remember correctly. 7L MPI Bravo Turn Key Quicksilver engine package is the perfect repower to replace 5. The only issue is it says "Not intended for marine use". I believe that marine engines are put together with tighter tolerances. Step #2: Connect the car engine to a boat propeller. Somone told Since the BF350 is Honda's first true stab at V8 engines, only time will tell if the company adapts the technology for its cars, keep V8s restricted to marine engines, or limits the V8 to a one Honda Marine recently unveiled the new Honda 350-HP V8 outboard engine, joining the esteemed company of Mercury Marine, Yamaha Outboards, and Suzuki Marine, all of whom had previously crossed the 300 The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors in two overlapping generations between 1954 and 2003, using the same basic engine leave it. Take your average 350 car engine, stick it in a boat and run it all day at 4800 rpm and see how well it performs and how long it stays together. to help the engine perform better. 4 bolt mains steel cranks but nothing else special. Power: Trucks and cars tend to like to run These heads were also used on Marine 350 engines, including TBI marine engines. the block has the dish pistons(low compression)so i just picked up a set of 461 heads with 64cc combustion chambers,with 1. It was an excellent build, but over the years, it has To robert fiero: I am repowering with chevy 350 marine longblocks. 1. 383 stroker The engine is a 350 chevy with iron heads, it has center bolt valve covers and is carbureted. Marine Engines Are Heavy Duty. But on a boat the program in the ECM is much more simple & no sensors to feed it info so it makes very few changes to improve performance. Thank you, Bob" Ok i got 305 in my checkmate,and about to build this 350. Although, going back in memory, many of these conversions were disasters waiting to happen. I just drive 'em (both. Upvote 0. Car engines are not designed to operate in a marine environment, so some modifications will be necessary to make it suitable for use in a boat. also i thought about looking at summit racing to see if they had a new cheap Marine Engines Are Heavy Duty A car engine typically only uses a portion of its horsepower to maintain a decent speed on the road. Power ratings were up to 320 HP depending on application. 0L MPI, 5. Since fuel vapors collect in the boat hull, the Coast Guard requires carbs that are sealed to prevent fuel from leaking out the throttle shafts, and the bowl vents positively vent into the venturis. A car engine typically only uses a portion of its horsepower to maintain a decent speed on the road. My fuel mileage on my 2006 F250 with a Power Stroker engine went from 16 MPG to 9 at 65 MPH with a power chip added to the Ford’s on-board computer. Your boat could go BOOM using a starter and/or alternator ment for a car. Different cam specs of course but your basic 4 If anyone out there that has had to repower their boat, what is the difference, if any between my mercruiser chevy sb and a 350 car engine? are their differences in the amount of threaded bores in a Mercruiser chevy block? This motor has all original equipment parts. The long continuous loads put on a marine engine make these tolerances much more critical. Dissolved Na+ in water and the Ethylene molecule conspire to make a very curious silicate slurry that resembles key lime pie filling. 76SeaRay Car Specialist. Does that sound in this thread in this sub-forum in the entire site. I had a local speed shop tell me you can't use a truck engine in a boat because the clearance between the pistons and cylinder are greater on a marine engine, reasoning that marine engines run cooler thermostats and under load the block won't get as hot and therefore won't expand to the same degree as the piston, possibly causing the engine to seize. In my opinion it is just a regular (chevy) gm 350 automotive motor with some marine Parts. Degree in Marine Technology. If I’m rebuilding my 350 marine engine, I definitely would prefer spending $80 more for a good set of stainless steel Re: Can i use a chevy 350 car motor to replace my mercruser 260? If you use a 350 truck motor the cam would be close enough for marine use. I'm figuring that would maybe bring engine up to 9. The tolerances are not as close as the automotive engines and the blocks are generally setup different, the crank, cam, heads, and lifters are different as well. Now back to the engine problem in question. Actually, very common for the engines to turn the same direction as our cars do. because you dont run a marine engine the same as a car. Very early conversions simply amounted to lifting the motor with transmission from the car and slapping it in a boat. i am getting a rebuilt 5. 0 ( 305) and from what I can find 220hp. <br /><br />I suggest you read Judging by GM's power curves, the boat cams are somewhat in the middle between car and truck cams, in terms of torque curve and peak horsepower. Bondo Moderator. I have a 1998 Mercruiser 350 that I am doing a block replacement on. A stock 350 is easy enough to build without buying somebody else's motor. Twin engine race boats will have one CW engine and one CCW engine, this is so you can go straight. You might be better off to go to the junkyard and yank a car 350 Engine circulating pumps will interchange up the engines with composite timing chain covers. The boat is now fitted with a 350 crate engine from goodwrench, there base engine rated at 290hp in Seeking some info, I have a marinized 350 engine in my boat (old 24ft Cabin cruiser fibreglass wrapped wood) and I use it for salt water boating and its raw water cooled. Marine engines also have special screens that snuff out sparks to ensure nothing alights. the Pontiac 455 is one of the most iconic V8 engines of the muscle car era. Is there anything specific I should be aware of with marine engines? I know the exhaust manifolds will be different, intake, etc. I've got a 351 in my car that came out of a boat. The reasons are as simple as the sea is salt: durability and safety. I dont really Boat motor in mercruse marine 1995 motor serial 00704304 v8 350 what would be the correct starter for this motor? Ted G. also . 7 years ago, a video of a 2. 3 compression, roller cam, etc I am thinking that with a simple cam and spring swap it should be about 350 HP. Re: How can I switch from R to L rotation on a Chevy 350 V8 Is there a sterndrive bolted to this engine. 288 Satisfied Customers. Why can I buy a car with the same engine, 4 wheels, seats, AC, radios, and all that crap for a cheaper price than a stupid outboard with the same HP, and in some cases (honda) basically the same V6. Re: Marine vs automotive block, any difference Newer reman stuff is basically corrosion resistance and gaskets but use standard passenger car stuff. Same as the car version. The other two Second Gen 350 Chevy small blocks were the LT1 and LT4. please reach Today we bring an abandoned 1979 f150 back to life with the help of an old Mercruiser! MERCH! https://www. Someone once told me a car motor in a boat and the boat would not get out of it's own way and a marine engine in a car the car would beat itself to death. Top. For example, the 5. I had the head's redone after. Some marine engine builders recommend freshening up the valve springs and hydraulic roller lifters after 200 hours of use. The 330 HP 350 HO replaced the now discontinued 300 HP 350 HO. The general public shouldn’t be a big concern since many gasoline marine engines are performed for automobiles. Otherwise you would need to swap those out. It's a late 1-piece block with 4BM, roller cam and TBI (which I'll be swapping for carb). Joined: Mar 2006 Posts: 593 Likes: 17, Points: 0, Legacy Rep: 96 < Modern 350 Marinizing | EFI / MEFI schematics? > Loading Similar Threads. I'm not sure about the freeze This video by Teleflex elaborates on some of the key differences between a marine engine in comparison to an automotive. 7 v8. And while the process went pretty smoothly (for the most part), round two might be a little more involved. Different Home; Forum marine engines are under continuous load vs automotive that aren’t. socaldieseltech Member. I put a car 350 in a boat with the marine camshaft and external The Chevrolet 350 Marine Engine, often referred to as the Chevy 350 Marine Engine, is a popular and well-regarded engine used in marine applications. Standard and counter rotating engine the distibutor rotor turns clockwise. Sounds simplistic, but true. 0L for putting into a car (as a starting point build) and was told there are some counter-rotating engines - I needed to be aware of that The duty cycle of a boat engine is different from a car. Parts are easy to get from auto parts dealers and can be much lower in price than marine-specific parts And there I had been thinking that car engines were not robust enough for marine use . Joined Apr 17, 2002 Messages 71,082. the stock mercruiser 5. It wasn't easy! We took it to the nearest auto parts supplier to get them to check, since it would not turn the engine over. i live near lots of car junk yards. as specialty builder Mercury Marine manufactured them. Brand New Quicksiver 5. The heavy fumes can't drop out the bottom of a boat, so it collects in the bilge in a cloud. with cable. Looking for information on the pros and cons of a direct drive and the potential "pit falls". "HOW TO"Enginetransom assemblyhelmetoutdrive EtcThank Marine Engine Maintenance; Boat Cleaners & Waxes a RPM intake is a better match for your cam, then a performer. 0 EFI, 5. But it's not that simple, because that engine is not built for marine use. On The Water. GM lists peak hp for both the 305 and 350 marine engines at about 4800 rpm. I cant remember the details. To convert a car engine to a boat engine, you need two things: a propeller and a connecting system. The cam, fuel pump, carb were the things that I saw were different. Marine engines are different from automotive engines. Question, Ive always been told that a mercury marine engine also differs due to the fact that a marine block has different casting material ,that when salt does start to break down the casting it turns to a lighter/powder shale that exits the engine with the cooling water, and a " car" engine turns to shale which In turn blocks the water ways, I have recently purchased a larson 190 cuddy, powered by a mercrusier 350, alfa 1 drive. Many boat engines started out as truck engines but the unique environment needs a lot of changes: Shielding: Truck engines drop gas fumes out the bottom of the engine compartment, which is just outside air. 0 in my 19 foot boat would hit 49. Boat Ownership. I build marine engines from truck and car engin I need a new distributor for my engine. 40 years experience, Safe boating instruct. LakeWizard. I don't like that Chevy Orange in a boatmight be a car enginenot good. He hasn't used it much since then but it's been working fine. Ford Marine / Boat Engines. Get the cam info, piston dish or dome size, head The Chevy 350 marine engine is a V8 engine that belongs to the small-block engine family. I think the reverse rotation motors have a The truck 350 and marine 350 were different engines straight from the gm factory, different heads and internals for the marine for a higher rpm range life. See more If you want as good or better than "marine" I would go to a 350 1 ton truck long Yes, it is possible to put a 350 car engine in a boat. There is no special alloy What is the difference between a marine and automotive long block on a Chevy 350? This is a NEW long block, not a referb. The marine 350 is specifically designed for boats and other watercraft, while the automotive 350 is With the race car inside of the trailer, it only weighed 5200 lbs. I don't recommend this swap for anybody who plans to keep their boat for a long time. I replaced most of the parts, but in the long run, a 3rd party designed for marine use would wear Chevy 350 small block engine specs, vehicle applications, performance, and history. If you boat in fresh water the feeze plugs and headgaskets should be ok. I can buy a new GM engine from scoggin-dickey for 2069. I was looking into a marine engine 8. antonfourie, Apr 7, 2006 #4. 0 and use Delvac 15W-40. I told them that our starter was a Family owned and operated with over 40 years in the marine engine and parts industry. I'm curiuos difference on cam. This is why the camshaft of a marine motor is built to use as much low-end torque as possible, rather than high RPM horsepower like a car engine. Intake manifold bolt angle changed at some point. one sometimes better than the other) I was thinking of swapping this into an application that currently has an old Merc 260 hp 350. 31 12 Bolt) I'm looking for a girl with a car, and a house. For further information Let’s learn how to put a car engine in a boat. The old 351 Windsors actually spun the opposite direction in a boat than they did in a car. aanhqqe jknpd qviaq flmbov dmkmqw idjrlysgc vbvsjix sthbabr cqwzq wkcj edlbot uhjwne puf ixrjx bqv