For example, Scat Enterprises forging process uses a pressure technique instead of a traditional slambam hammer approach to make its forged steel cranks. The 4M crank has a 3.500-inch stroke and a 2.750-inch main journal. You can also visit the ROUSH Competition Engines direct website. Seal, Ford, 408, Kit, Estimated USA Ship Date: Done the same as article with the exception of slightly larger crane solid lifter cam & an old school torquer intake & H/S rockers . These cranks can be used in a 351W block by using the appropriate bearing spacers. Targeted bob weights. A carefully tuned crankshaft damper helps manage the vibrations, and holes . Mar 16, 2023 To put this flow into perspective, a 1987-95 5.0L Ford (E7TE) head flowed 155-160 cfm, and a Chevy Fuelie head might flow 210 cfm. Some builders use engine oil, but assembly lube has staying power. Re: Remember using a Cleveland crank in a Windsor? Summit Racing can help. Ford's 351 Cleveland engine is a small-block 5.8L V8 produced from 1969 until 1974. Weve been long taught to believe we must have a steel crank to do highperformance work. What makes the 351M and 400 different than the 351C is larger main and rod journal sizing along with the raised deck block. Fun and dependable 67 FB Mustang, Street Car. MISCELLANEOUS In addition to the Chevy, Ford and Dodge offerings, we have numerous other crank programs to build what you are looking for. The referal to 4 Valve only confuses you and others less versed in the Ford world. And that unique sound! There are three basic types: The 4M with a 3.500-inch stroke and either a 2.750-inch main journal (351C) or 3.000-inch journal (351M). Marvin was out to get it right and safely returned. The 351C has smaller 2.750-inch main journals, which means you would need the journals turned down by a competent machinist. Enthusiasts get this mixed up all the time, but there is but one truth. These stroker cranks are an excellent choice for use in building a high output, light and compact Ford V8 engine powered vehicle. Sep 11, 2008. Estimated International Ship Date: Most of the better ones use forged pistons, rods and crankshaft that has smaller 2.750, 351C size main bearing journals for longer bearing life. The Right Stuff between seals and grooves is also beneficial. Estimated International Ship Date: $120. Topping our .030-over, 351C short block was the real success of the Cleveland engine family: the 1971 4V heads. Estimated International Ship Date: Wow no dyno but that thing pulled like a Bear 3500/ 7500ish! It sounds more trustworthy than cast iron, but it is nothing more than nodular iron. Though you see 4MA, 4MAB, 5MA, 5MAB, the additional A or B is nothing more than an engineering revision to the casting. As they always move two pistons together, the secondary vibration is twice as strong (and half as frequent) as cross-plane, unless balance shafts are used, with a counter rotating pair flanking . The 351C has a 9.206-inch deck height. BEST WISHES TO ALL CLEVELAND GEAR HEADS AND AS A SCOT LIVING IN AUS SINCE 73 WE LOVE THESE ENGINES May 9, 2023 My understanding is that the only reason you would be using a flat plane crank is to get the benefits of even exaust pulses, eg scavaging effect from one side of the engine, instead of crossing over the pipes ah la GT40 etc. My brother has a Q code 351 clevland and he put all the goodies in it and it pulls so hard you can pull your self up to the dash. The 351C and both the 351M and 400 are not the same engines. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. Also mill the cylinders heads down to make combustion chambers smaller. Summit Racing will BEAT any competitor's advertised price! Instead of controlling compression with a dished piston, Ford made the chambers large like an indoor football domed stadium. 4V stands for four-venturi, not for four-valve as the article incorrectly states. It is the shock nature of nitrous and pressurized induction that can break an iron crank. How is it you can easily add nearly 100 hp to your 351 Cleveland? It reduces crankshaft endplay by supplying a flange on the high side of the tolerance to compensate for excessive crankshaft thrust wear. The 400 showed up the following year in 1971 to replace the FE Series 390 and 428ci big-blocks in full sized Fords and Mercs. This is another reason why journals need to be polished. And when machining the crank, micropolish the journals to get the best oil fl ow and wedge. Shop Connecting Rods SCAT connecting rods are made from a 2-piece chromoly steel forging to ensure maximum strength and durability. 302 351 Cleveland 4 barrel 2v manifold in good condition. The 351C-4V cylinder heads were great high rpm heads with their drive-through ports, which are happiest at 7,000 rpm, but frustrating on the street because they deliver poor low-to-mid-range torque for the street. if ordered today, Crankshaft, Ford 351C 4340 Forged Steel Crankshaft ST-4.170 M-2.749 MRL- 6.0 Bal-Ext. Build times vary. Seems like a testing void no one is covering. May 8, 2023 351 cleveland flat plane crank. Ford's decision to terminate 351C production was rooted in scaling down production costs. With proper timing advance settings, the engine should run well using 93 octane pump fuel. I shouldnt say wrong but it IS very misleading. I get asked from time to time how to tell the different between a cast and forged crankshaft. (3), Procomp Electronics Forged-43 Crankshafts PCE276.1053, Scat Forged Standard Weight Crankshafts 4-351C-4000-6200, Procomp Electronics Forged-43 Crankshafts PCE276.1124, Procomp Electronics Forged-43 Crankshafts PCE276.1058, Procomp Electronics Cast Crankshafts PCE276.1110, K1 Technologies Forged Crankshafts 011EAD400, Procomp Electronics Cast Crankshafts PCE276.1117, Procomp Electronics Forged-43 Crankshafts PCE276.1062, Procomp Electronics Cast Crankshafts PCE276.1147, Scat Forged Standard Weight Crankshafts 4-351C-3500-6000, Scat Forged Standard Weight Crankshafts 4-351C-4000-6000, Eagle Forged 4340 Steel Crankshafts 435640006000, Scat Forged Standard Weight Crankshafts 4-351C-3850-6000, Scat Forged Lightweight Crankshafts 4-351C-4000-6200-2, Procomp Electronics Forged-43 Crankshafts PCE276.1049, Procomp Electronics Forged-43 Crankshafts PCE276.1059. Crankshaft endplay is .004 to .010 inch. Where other Ford V-8 engine families had both cast and steel crankshafts, the 351C was produced in cast only. Great comments! Monday 3/6/2023 You can use the social sharing buttons to the left, or copy and paste the website link: https://www.diyford.com/ford-351-cleveland-engines-crankshaft-guide/. My best friend had a stock 302 boss that came in a cougar eliminates 1970 and it would beat a 1970 454 chevells we raced 2 of them and won it was a high winding engine loved it. On the left here is a 351M with a 3.000-inch main journal. Hes not here to comment, but I believe that is what he used. Over the years, Ive studied crankshaft failure and talked with those who have also studied it and concluded most failures occur in the journals fillet radius where heat and stress seem to occur most. if ordered today, Crankshaft, External Balance, Forged 4340 Steel, 3.850 in. Rarely do you see a mid-journal failure or a break at a counterweight. It does not mean Brinell tested. Contact us for build time. 'New' Lightweight SBC Crankshafts An all new forging that moves the moment of inertia outwards, to make a lighter shaft with good harmonics. The motor is going back in my 79 bronco, so I dont really want a screamer, just really good power and torque. of torque. A cast crank does well with steady, consistent applications of power. Graham Eagle investigates . Cleveland crankshaft identification is easy and based on codes stamped into the first counterweight. Igor a 1970 Mach 1 with shaker hood. DONT CHIME IN ON CONVERSATION YOU OBVIOUSLY need to do some of your own proof reading Mr negatively. $5 Off Your $100 Mobile App Purchase - Get the App. Thanks. You also want to crossdrill where necessary and chamfer oil holes to improve oil fl ow at the journals. Not sure which Ford 351 youve got? Instead of hammering molten 2,600-degree F metal into shape, it applies tremendous pressure to the nearly liquid metal. The 351M was used extensively in Ford and Mercury passenger cars. The cylinder bore spacing and head bolt patterns of Cleveland and Windsor heads are identical which makes the better flowing Cleveland heads a natural choice. Your email address will not be published. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. The earliest V8 engines used flat plane crankshafts. Oh, how quickly people forget! SBF. As expected of a healthy cam upgrade, both peak hp and torque occurred higher in the rev range, but the new combo only experienced losses below 3,300 rpm. Mar 16, 2023 You can comfortably turn your journals to .020-inch undersize and still have durability. I did this back in the 90"s. 351w block. While Ford abandoned the Cleveland early on in the US, it continued to power hot motors down under in Australia for many years! During combustion the quench area promotes good flame front travel and reduces the probability of detonation. November 30th, 2022. A nearly molten steel alloy ingot is heated to approximately 2,200 to 2,600 degrees F and rammed into the shape of a crankshaft in a die at an excess of 240,000 psi. Required fields are marked *. Leib breaks it down by saying the flat-plane crankshaft offers better cylinder head breathing symmetry and scavenging. If youre rebuilding a Cleveland that already has a steel crank from a prior rebuild, your crank should be nitrided once all machine work and balancing is completed. A friend / customer a few years back who ran a 3200 '66 Fairlane with a 351 4 V. Cleveland, a Ford Motorsports solid flat tappet on a 106 or 108 LCA, top loader @ 5.13's. Ran a best of 11.61 @ 121. These parts don't work together! Shop ROTATING ASSEMBLIES Callies Crankshafts are at the top of the industry for quality of finish and reliability. We offer a complete line of rods for Small Block and Big Block Chevy, Ford, Chrysler, Pontiac, Honda and many more makes in both I-Beam and H-Beam connecting rod designs. The offenhauser power port short runner tunnel ram with twin 600 Holley vac sec carbs, 12.4 trw pistons, and 108 lobe center sig Erson hi flow I M cam running AV gas was absolutely a rocket ship on the street. Theres steel billet on the high end, plus forged steel, malleable steel, and nodular iron (cast iron). You can safely get 408 inches from a production 351 Windsor block and the aftermarket has plenty of stroker kits to choose from. Where you must be attentive is main journal size because its easy to unknowingly pick up a 351M crank, which has the 400s larger 3.000-inch main journals along with the 351Cs 3.000-inch stroke and rod journals. Figure 2 shows a typical Flat Plane V8 crankshaft. Cast aluminum flat top pistons; 9.0:1 compression (Compared to the 10.7 . New small runer intake manifold has new port designs that flows more air through smaller diameters at high speeds wich improves horsepower and torque in all areas of rpm band it actually helps the stock cylinder head make more power and torque than the 50 year old design. The crankshaft is important in any car because it is one of the major moving components that allows the pistons to fire in sequence as they were designed to do. Estimated International Ship Date: Click the button below and we will send you an exclusive deal on this book. Written by George Reid and Republished with Permission of CarTech Inc. Im getting ready to rebuild my 400, and am looking for the parts list used, and if the deck height problem was ever solved to get more than 9.1:1 compression. 1980-1981 Fox Body Mustangs. SBF. If you take a small hammer and tap a forged crank, it rings like a bell with a long resonance afterward. Estimated International Ship Date: Aside from the obvious stress, there are other loads such as oil pump and distributor, which also contribute to twist. The cross-plane design has one throw every 90 degrees at north, east, south, and west positions. The more time involved to make a part, the more expensive it becomes. Street Clevelands do not need a steel billet crank, which is purely a race piece for extreme-duty use. The 400 crank has a 3.000-inch main journal and a 5M stamp. Monday 3/6/2023 Estimated International Ship Date: The heads were also treated to a multi-angle valve job and surfacing (63-cc chambers) prior to installation. My Cleveland, built 10 yrs ago still going. Searched everywhere about port matching airgap or most modern manifolds to the 4 heads and found nothing. The flat-plane or single-plane crankshaft is the original V8 design, which has its crank pins at 180. As pistons and rods rise to compression/ignition stroke, oscillation becomes more intense, acting on not only the crankshaft, but also connecting rods and pistons. . This is a custom order part. With the reduced rotational mass, the inertia point. Found in the video archives over at Lingenfelter Performance Engineering, the tuning company's mad scientists once took an LS Small Block V8, swapped out the stock crankshaft. . Given the flow rates, even this modified 351C was just scratching the surface of what OG 4V heads will support! Was a 71 cj. Thursday 1/26/2023 Including: Camshaft, Lifters, Timing cover, multi keyway timing set, High volume oil pump, K&N oil filter. Available in 3.48 to 4.125 strokes, weigh 46 to 50 pounds. We finished up the short block with a reproduction (hydraulic flat-tappet) 351 Cobra Jet cam from Elgin. Codes 4M, 4MA, or 4MAB indicates a 351C or 351M crankshaft with a 1.750-inch throw or 3.500-inch stroke. Estimated International Ship Date: Stroke, Ford, 351W, Cleveland Mains, Each, Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, Custom Order, Ford, 351C, Each, Crankshaft, 4.000 in. You can order this part by Contacting Us. What you see is what you'll get! These will reduce combustion chamber size by 8cc. A good rule to follow is to machine the crank journals to the bearings, and swap bearings around to get optimum clearances. The 351C, 400, and 351M crankshaft identification is 4M for the 351C and 5M for the 400. However, there is a second, more traditional flat-crank design with the journals arranged up-down-down-up (UDDU) like a familiar inline four. Once allowed to cool, final polishing and finish work are performed. Apr 10, 2023 The very first sentence of this article is WRONG! Once the forging is trimmed and machined, it gets nitrided for good surface hardening. Cast iron production Cleveland heads can be used but finding a good pair and having them machined for an adjustable valve train can get expensive. Even though the Cleveland 351 came from the small block family, few parts will interchange. Check out our selection of Molnar connecting rods also and get a set of rods that will be the perfect match for your new Ford 351 stroker crankshaftor Late Model Stock racing crank. Theres a lot of scuttlebutt about 351C, 400, and 351M crankshaft identification numbers, but basic identification has never changed in all these years. The 351C arrived in 1970. The forged pistons and reconditioned rods were teamed with a factory cast (polished and balanced) crank. About | Contact | Terms | Privacy. You can order this part by Contacting Us. Estimated International Ship Date: Estimated International Ship Date: Mar 20, 2023 What is the difference between nodular and cast iron? offers several different 351C/351M/400 cylinder head part numbers, Performer LB 351-4V dual-plane manifold (EDL-2665), MSDs Pro-Billet Ready-to-Run distributor, https://www.compcams.com/retro-fit-hydraulic-roller-installation-kit-for-ford-289-351w-351c-351-400m.html?gclid=Cj0KCQjwvZCZBhCiARIsAPXbajsvolWJmoEhQ8__w_3jfoTRrAo75vLwzIpJOBdHgEcxojFcEnFXzB8aAsYlEALw_wcB. Guess its your choice . To show the stock 4V heads had plenty of offer, we first ran the Cleveland with the factory, iron 4V intake manifold and 750 Holley carburetor. After replacing the stock, iron intake manifold and repro-CJ cam in our .030-over 351C, we were rewarded with a jump in power from 359 horsepower and 372 ft.-lbs. Ie timing & heads. BTW the M has a 351 Windor crank in it. Stroke, Ford, 351W, Cleveland Mains, Each, Crankshaft, 4340 Steel, 2.750 in. His specialties is Panteras. Most early V8 road car engines also used a flat-plane crankshaft, since this was simpler to design and build than a cross-plane crankshaft. The reason you want a steel billet crank is its raw strength. 4 barrel carburetor. Its production and service life was all too brief, unfortunately, lasting through the 1974 model year. Sometimes a nick renders a journal unserviceable if it is deeper than the minimums allow. The billet crank begins life as a cylindrical steel ingot, which enters a labor-intensive process of many machiningsteps before it looks like a crankshaft. Ive only had the opportunity to build one Cleveland. Fords 335 Series Cleveland existed in two forms in North Americathe low deck 351C and the raised deck 400 and 351M. Ships Tomorrow. In short, what did the 351 Cleveland motor have that the other Fords (like the Windsor), or even the competition over at Chevy and Dodge, didnt? Im not doubting that this build produced a very strong engine but, cmon Summitdo some proof reading before posting something like this! Stroker Conrods - Ford 393 408 Cleveland. 857 3558 $ - Mar 21, 2023 Ford 351 Cleveland 4MAB Crankshaft About this product About this product Best Selling in Crankshafts See all Mann ProVent 200 Catch Can for All 4x4s Turbo Diesel's Crankcase Breather (1) AU $175.00 New ---- Used Callies Apo-31t-mg 58 Magnum LS 6 CW Crankshaft 4.000 Stroke 58t GM Reluctor AU $4,558.10 New ---- Used Flat cranks can be made stronger, as they can be forged in one piece. It mentions 4v and says 4 VALVE.. Lol cast heads have a tiny 4v on the corner of the head. There is also the other vibrations that the flt crank produces that can cause things to break. If youre going to push it beyond that, youre going to want steel. dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. M echanically, the flat-plane crank V8 is essentially a pair of inline four-cylinders fused at the crankshaft. Though you see 4MA, 4MAB, 5MA, 5MAB, the additional A or B is nothing more than an engineering revision to the casting. Very impressed. if ordered today, Engine Rotating Assembly, Forged Crank, Forged Pistons, I-Beam Rods, Ford, Cleveland, Kit, Engine Rotating Kit, Outlaw Series, Forged 4340 Steel Crank, Forged Aluminum Flat Top Pistons, H-Beam Rods, 2-Piece Seal, Ford, Cleveland, Kit, Estimated USA Ship Date: A crankshafts primary job is to convert heat energy into rotary motionand power. of torque at 3,800 rpm. We finished up the short block with a reproduction (hydraulic flat-tappet) 351 Cobra Jet cam profile courtesy of Elgin cams. I have for sale 351 Cleveland parts manifold, crank 4mab, pistons, heads, ect all were running fine but will need a good clean please inquire for pricing. Theres also the harmonic balancer, which acts as a shock absorber for crankshaft twist. Yes this set up is pretty weak, wrong cam type. The 351C 4V motors, and even the smaller 1969 & 1970 Boss 302, offered head flow unmatched by any (regular) production small block Ford, Chevy, or Dodge heads of the period. Privacy Policy Copyright 2023 MolnarRods.com All Rights Reserved, 351 Ford with 2.100 small block Chevy size rod pins, Ford 351 with 2.100 small block Chevy size rod pins, Ford 351 stroker crankshaft with 2.100 small block Chevy size rod pins, 351 stroker crank with 2.100 small block Chevy size rod pins, Ford 351 stroker crank with 2.100 small block Chevy size rod pins, Nitrided main and rod journal surfaces for superior wear resistance, Precision machined to extremely tight tolerances, Material properties are monitored closely to insure optimum performance, Counterweight placement designed for improved crankshaft performance, .125" radius on both the connecting rod and main journals for increased strength, Precision ground and micro-polished journals. 351w crank stroke and ground to 2" chevy crank pin. This is why the middle ground is suggested when it comes to bearing clearances. The balanced rotating assembly (typically includes crankshaft, pistons, rings, connecting rods, rod bearings, and balancer) featured in this engine: Cleveland Show: Adding Nearly 100 HP to a Free-Breathing Ford 351C. Stroke, 2.75 Mains, 351C, Kit, 2.0 out of 5 stars Regardless of how you look at this dynamic, cyclic issues affect crankshaft life. Rust scores new bearings. The hunt for a 4-bolt 351C block begins. Ive been Ford loyalist for decades. International Customer Options|In the United States? [1] Details [ edit] Flat-plane cranks are used in V-configuration engines, generally with eight cylinders. In other words, youhave a broader oil hole surface area at the journal, which increases volume. Twist and oscillation affect timing and power output. Firstly, the cylinders of a traditional cross-plane crank V8 fire once every 90 degrees of crank rotation, resulting in smooth power delivery and good torque characteristics. Notice the tiny rust spots in this journal? Your email address will not be published. In fact, the 351C has been as popular in Australia as the small block Chevy, which has significant meaning when you consider the legendary Chevys great success for approaching 70 years. Others are made of 1038 steel, which isnt as pure as 4340, but still quite effective. Crankshaft materials vary considerably and require a lot of thought. if ordered today, Engine Rotating Kit, SuperStreet Series, Cast Steel Crank, Hypereutectic Aluminum Flat Top Pistons, H-Beam Rods, 1-Piece Seal, Ford, Cleveland, Kit, Competition, Standard Weight Forged Rotating Assembly, Competition, Standard Weight Forged Rotating Assembly, Cleveland, Kit, Competition, Balanced, Forged Rotating Assembly, 6.125 in. We all know that 4V stands for 4 venturi, a.k.a. This means you can machine your Clevelands crank beyond .010-inch undersize without concern for failure, especially if youre building a street engine. A steel crank has smoother surfaces and wide parting lines due to the violent forging process. dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, Scat Engine Rotating Assemblies 1-46260BE, Eagle Competition Rotating Assemblies 14702030, Eagle Competition Rotating Assemblies 14700030, Scat Engine Rotating Assemblies 1-46010BI, Speedmaster Outlaw Series Engine Rotating Kits 1-290-013, Scat Engine Rotating Assemblies 1-94272BE, Scat Engine Rotating Assemblies 1-94412-040, Eagle Competition Rotating Assemblies B14702030, Procomp Electronics Engine Rotating Kits PCE290.1129, Speedmaster SuperStreet Series Engine Rotating Kits 1-290-012, Scat Engine Rotating Assemblies 1-46235BE, Scat Engine Rotating Assemblies 1-46019BE, Scat Engine Rotating Assemblies 1-46252BE, Scat Engine Rotating Assemblies 1-46250BE, Scat Engine Rotating Assemblies 1-46015BE, Scat Engine Rotating Assemblies 1-46017BE, Scat Engine Rotating Assemblies 1-46256BE. May 1, 2023 The 351C crank is an extremely durable piece that can take up to 7,500 rpm. Terms of Use | Privacy and Security | Site Accessibility Spinning the upgraded rods and new forged pistons was a cast 351C crank. The key to engine component cost is time and materials. They did, however, lack the adjustable valve train offered on the performance-oriented, solid-cammed (hard to find) Boss 351 heads. To add insult to injury, you sometimes install rod bearings backward, which is failure before you even get started. FORD 351 / 393 STROKER CRANKSHAFT 3.850" FORGED 4340, 351C Cleveland mains, Windsor, Stroker C 393 STROKER, FORGED, INTERNAL BALANCE, 351C MAINS, The 351C was built to be a high-performance engine. Probably can get the compression to 9.7 to 1 . The as-cast, production Boss/351C 4V heads flowed a whopping 275 cfm! When shopping for stroker kits, just keep in mind that Windsors and Clevelands use different piston types and will need to be specified when ordering parts. It was just the 400. These 351C heads include stock intake and exhaust port locations, stainless steel valves, heavy-duty valve springs for up to .600" lift, CNC profiled port entries and bowl blending for optimum air-flow, 5/8" thick deck for positive gasket sealing and retention and Heli-Coiled in the exhaust bolt and rocker stud bosses for maximum strength. The engine was produced in displacements of 4.9 L (302 cu in) and 5.8 L (351 cu in) for use in the . You may be able to mill the deck height down on the engine block. The factory crank was first polished then balanced with the entire reciprocating assembly that included new Clevite rod and main bearings. Apr 10, 2023, Crankshaft, External Balance, Forged 4340 Steel, 4.000 in. The aftermarket has followed suit in the years since with a great selection of cast, steel, and steel-billet Cleveland cranks. The secret to achieving that is in the cam timing compression induction carb ignition timing gearing and exhaust system. Mar 29, 2023 The engine is part of Ford's "335" engine family, which is a group of 90 degree, overhead valve, V8 engines. Mar 20, 2023 They are different beginning with the block and its internals. This looks like two four cylinder engines that have been joined together at the crankshaft. Cleveland crankshafts all look the same at a glance; however, they are quite different. Both designs attach two connecting rods to each throw and their blocks have 90 degrees between cylinder banks. This engine was born to make torque for full-size cars and trucks; hence the heavy-duty 5M crank and D1AE 6.580- inch (center to center) connecting rods. Mar 20, 2023 Today, the 4V designation best differentiates the 4.6L Modular Ford family from the lesser 2V combos, or conjures up a conversation on 5.0L Coyotes. These 1971 heads got us half way to our performance goal, by featuring the desirable (smaller) quench chambers. For example, engine blocks and heads are made from gray wall iron (ASTM A48), which has a hardness of 260 on the Brinell hardness scale. Because there are many torsional stresses on a crankshaft, a lot of thought needs to be given to crankshaft selection. In high-performance applications, you want it midway between .004 and .010 inch and closer to .010 if possible. The Ford engineers did a great job of designing the small chambers and the location of the spark plug on the early 4-V heads.