WTB: Mopar M1 MPI intake manifold 4bbl (5.2/5.9 Magnum Fuel injection) Musky Mike; Jan 9, 2022; Wanted; Replies 0 Views 763. I've not looked into the innards of one of these manifolds, so. Really, guess I'll try and talk my friend in staying with the fuel injection. Brand New. Question I have is about a 2000 360 Magnum engine, intake manifold. The Magnum intake has vertical fasteners, in contrast to the angled LA-series arrangement. Manage Settings Manifold Design vs Airflow Dodge Magnum Intake Manifold in-stock with same-day shipping. horsepower production is going to depend on the flow of the whole system, from the air inlet to the intake valve. A forum community dedicated to Dodge Magnum owners and enthusiasts. The 4.00-inch-bore-by-3.58-inch-stroke . Will be so much better anyway especially up in the mountains. 5.9 Magnum Plenum Gasket Leak. Naturally, since the runners on a two-plane are arranged to cross from one side of the engine to the other, the resulting runners are longer. 299.7 cfm. The manifold is providing broad pulse separation at the carburetor, improving signal, reducing exhaust gas reversion, and improving idle vacuum in the process. Does that mean a deep port-matched Performer will work better than an RPM without deep port matching? JavaScript is disabled. This comes with fuel rails and it is best for o-rings. Has 50 mm tall intake ports. ", Dual-planes are the most difficult to improve because two runners run low under the other runners, making them difficult to reach to do much reshaping.Dave Hughes. 100% brand new. What is missing in the case of small-block Mopar intakes is cold hard data, showing just what kind of airflow the runners are capable of. Magnums utilize 1.6:1-ratio pedestal rockers in place of the earlier LA-series engine's shaft-mount 1.5:1 arrangement. The Magnum engine has a M1 dual & signal plane only but they have various styles of single plane intakes available. Something went wrong. $1750.00. Musky Mike. There is a new turbo charger about to come out. The 4.00-inch-bore-by-3.58-inch-stroke powerplant was originally designed to provide an economical alternative to the popular 383 two-barrel big-block, while the shorter-stroke and larger-bore (4.04x3.31) 340-cube engine carried the performance banner. For practical purposes this swap is a nonplayer, except in the case of very early Magnum blocks that were reportedly manufactured with the LA-style oiling provisions intact. The rpm range should be idle to 5500 or 6000 if I recall. Up the ante with a race-style engine turning serious rpm, and the wide-open airflow of the single-plane is the winner every time. Use your Summit Racing SpeedCard today, and get 10% back - Get Details! The wonders of modern electronics. At the bottom end, the Magnum engines all use the LA-series 360 rear oil-pan relief. The stock Magnum hydraulic roller lifters and lifter-retainer spider assembly were kept. This brings us to the intake manifold. . MOPAR Performance M1 Intake Manifold Fits 318/360 Magnum engines (5.2L & 5.9L) Dual plane 4 BBL intake manifold Designed to give your Magnum engine increased air flow for better efficiency and significantly increased HP and torque numbers in the low to mid RPM range. This machined billet aluminium thermostat housing has been manufactured spe $ This is the minimum level of trim needed to shove a Magnum in place of the slant-six in your old Dodge Dart or Plymouth Duster. Carb 4bbl. You are using an out of date browser. The only options are to either find a proper carb intake for the Magnum motor or use an old LA intake and modify so it works (I forget if you redrill the intake or the holes in the heads). . Most LA intakes do not fit Magnums but I see Edelbrock has ones with vertical bolts to fit a magnum. For the induction combination, we used the same intake that came stock on Mopar's 300-hp crate enginethe M1 dual-planetopped by a 750 Speed Demon carb. Depending upon your intuition and the knowledge of your bench racing buddies, your results here will vary. That intake has a goofy looking base where the carburetor sits, the base where the carburetor sits looks a lot different then my edelbrock rpm air-gap. Clearly designed more for low-end torque than horsepower aspirations, this intake manifold is wholly out of place with our cam-and-head combination. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It may not display this or other websites correctly. Automotive; Parts & Accessories; Car & Truck Parts & Accessories; Air & Fuel Delivery. The offset rocker arrangement was used by Chrysler in the '70 T/A cylinder heads and subsequent Mopar W-series race heads, and is used by aftermarket manufacturers such as Indy Cylinder Head. In fact, this is the intake design Mopar Performance runs on all of its higher-output crate engines. Magnum engine, fuel injected. Columbia, CT. To fulfill this requirement, we went with a set of Comp 1.6:1-ratio aluminum roller rockers. Mopar, 318/340/360, Each. Add to Cart. Testing intake manifolds for the 5.2 / 5.9 Magnum V8 engines, FCA: great finances in US, not so much elsewhere, Luxury Ram, Mopars win over Texans, Stellantis logo, and new books, Durango Hellcat about to go on sale (maybe not for long). The dimaier 360 magnum intakemanifold comes with fuel rails, It is accurate and has an intake style. Other Names: Intake Manifold Plenum, Plenum More Names. You might presume that virtually any manifold would be capable of keeping up with the typical cylinder head port. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It may not display this or other websites correctly. The higher-powered engine comes with higher-compression pistons, a long-duration camshaft, and a single-plane Mopar Performance intake. Carburetors require jet changes to do this, and that gets to be messy and time consuming. # 475958719. All that being said, manifold airflow is still a valuable piece of information when puzzling over an engine combination, or in making comparative decisions on which manifold to choose. I like the air-gap manifold, but My 360 magnum is in a 4x4 truck and I have been thinking I might get better drive ability with the mopar intake. While a conventional V8 engine fires a cylinder every 90 degrees, each side of the intake manifold feeds an intake stroke every 180 degrees of crank rotation. This will fit except you cannot use the 4 center bolt holes. Changes were made to improve the engine in output, reliability, and sealing against oil leakage. Actually Mopar Performance makes three 2 bbl MPI single-plane intake manifolds for the Magnum Engines according to the 2002 Mopar Performance Parts Catalog and online. With the 300-hp crate you get a bone-stock production bottom end, complete with the stock truck pistons and cam. With the shaft-mounted rocker arrangement of the LA series, offset intake rockers can be readily utilized to dramatically increase the available intake-port cross-section at the pushrod restriction. May require some modifications for earlier model ,OBD1 equipped vehicles, and would be for Off-road use only. The jetting in the carb can be adjusted for the altitude. It may not display this or other websites correctly. . Does anyone disagree that the Mopar dual plane M1 intake would be a better fit on a 300hp crate 360 magnum in a 4x4 truck? It's not uncommon to pop the lids on a 100,000-plus-mile Magnum and discover negligible bore wear, while the older carbureted small-blocks would have been spent. . Make your car repair environment by focusing on engine parts professionally over 15 years. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson. When considering low-buck performance for a Mopar, good power potential and ready availability make the 360 a winner. Before we dig into Dave's findings and answer the burning question of what these small-block intake manifolds flow, we discussed some of his general observations and ground rules about intake manifolds. . But a lot of people buy the crate 360 and find the intake too tall for their application, so a . MOPAR Performance part number P5249500, Casting number P4532588 Magnum engines featured a serpentine-belt accessory drive, a reverse-rotation water pump, and utilized a timing-case cover with no provision for a mechanical fuel pump. 68 Charger 440-6pac/02 PT Cruiser/63 TR4/95 Dakota 3.9-5spd/39 Nash Business Coupe. With the jetting dialed in, the power pulls confirmed that this parts selection put major firepower in the basic Magnum package, with 448 hp recorded at 5,800 rpm and 435 lb-ft of torque coming to bear at 4,900 rpm. This works great, is good for intake manifolds, it works fine and has a flange style. Fits: Chrysler . We'd start with a dead-stock Magnum long-block engine assembly, adding a carburetor, a conventional distributor, and headers for the baseline. This turnkey engine comes with everything from the carburetor down to the oil panall for less than $5,000. I have been thinking about trying one. Opens in a new window or tab. This means that every manifold will not flow the same. Maybe, but this will depend on the engine combination. And, the manifold is made of 3mm (1/8 inch ) thick t6061 sheet aluminum. there are the other factors of pulse separation and runner length to consider besides raw airflow. 9 to 1 cast flat top pistons. Stock M/P M1 2 bbl: 256: 245-266 (21 cfm spread) Modified M/P M1 2 bbl: 276: 270-285 15cfm spread) And, the best for last, The Hughes FI AirGap : Average cfm: Scatter : Stock Fi AirGap: 263: 253-268 (15cfm spread) Fully Ported FI AirGap Are you guys using the Mopar Performance P/N 5249816 2 bbl MPI . The reason behind that is that it ONLY fits the magnum trucks, where as a cheap small block chevy intake fits a TON of motors, people use small blocks in all kinds of vehicles, now if mopar nuts were like chevy nuts and they would realize how cool it would be to have your 76 duster or 74 dart with a 360 mpi magnum motor putting out 350-400 hp turnkey fuel injected smooth running easy to find . 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