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. of 20, Crankshafts, 1-piece Seal, Forged 4340 Steel, 4.100 in. 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. I want to keep the shaker filter. I wonder what the numbers would have been if they port matched the edelbrock airgap to the heads? of torque. Crankshaft, Ford 351C Cleveland 4340 Forged Crankshaft ST-4.250 M-351C RJ-2.100 Ext Part Number: SDM-PCE276-1053 Not Yet Reviewed Estimated Ship Date: Monday 3/6/2023 Free Shipping $867.99 Add To Cart Compare Wish List Scat Forged Standard Weight Crankshafts 4-351C-4000-6200 With 275 cfm at your disposal, the 351C offered the most cylinder head flow of any production small block. The as-cast, production Boss/351C 4V heads flowed a whopping 275 cfm! True Cleveland enthusiasts might recognize the fact that we could well have run both the hydraulic flat-tappet, 351 CJ and upgraded Comp cams with the non-adjustable valve train. We have an assortment of Molnar Technologies brand Ford 351c and 351w forged crank models to choose from and new parts are constantly under consideration for addition to the product line.. We have a 50 pound legal Late Model Stock crank as well as several 351w stroker crank models available for these popular high performance Ford 351 Windsor and 351 Cleveland engines. They use aluminum Trick Flow 225 cc heads with 60cc combustion chambers. A target bobweight of plus-or-minus 2 percent means less balancing time. He's authored several books on performance engine building and written numerous articles for publications like Hot Rod, Car Craft, Super Chevy, Power & Performance, GM High Tech, and many others. . Regardless of how you look at this dynamic, cyclic issues affect crankshaft life. The Basic Flat Plane Crankshaft Stevie's Crazy Garage 1.23K subscribers Subscribe 1K Share 113K views 7 years ago This video uses rendering techniques to explain the basic concepts of a flat. Time was when you mentioned 4V, people immediately thought of the 351 Cleveland, and the massive port openings offered by those amazing cylinder heads. Filed Under: Ford 351 Cleveland Engine, Ford Tech Tips, 2023 DiY Ford. 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. First offered in 1970, the 351 Cleveland motor came as a 2V and a 4V engine. A 351C crankshaft has a 2.750-inch main journal, which makes it a different crank than you find in the 351M, which has the 400s larger 3.000-inch main journal. Once allowed to cool, final polishing and finish work are performed. How do you recondition a crankshaft to make the most of its durability? Including: Camshaft, Lifters, Timing cover, multi keyway timing set, High volume oil pump, K&N oil filter. The exhaust pulses in the headers are evened out. Though stroke is the pistons overall travel, from bottom to top, crank throw is half the stroke number. + The flat-plane crank depicted in the excellent animation has its throws arrayed in an up-down-up-down (UDUD) configuration, the same type used in Ford's recent Shelby Mustang GT350 V8. Cast aluminum flat top pistons; 9.0:1 compression (Compared to the 10.7 . Others are made of 1038 steel, which isnt as pure as 4340, but still quite effective. Call MPG head service they are experts on the cleveland and 400m engines. Apr 9, 2023 But lets just say you want to keep your Cleveland all factory inside, you have a great foundation to work with. In the early 1920s, Cadillac and Peerless pioneered the smoother crossplane crankshaft, a design that revolutionized the American V8. Stay Updated with Emails from Summit Racing. Hi, Cleveland crankshaft identification is easy and based on codes stamped into the first counterweight. The 351C and 351M are not the same engine, by the way. This keep journal surfaces hard and less inclined to wear. The 2V head had right sized ports, yet big open chambers with poor quench prone to detonation and hard starting. Rear main seal leakage with two-piece seals can be chronic. Before assembly, the stock rods were treated to polishing, shot-peening and a set of ARP rod bolts. A good rule to follow is to machine the crank journals to the bearings, and swap bearings around to get optimum clearances. Demonstrating that the stock 4V heads had much more power to offer, the cam and intake upgrade increased the power output by nearly 100 horsepower, pushing the peaks to 452 horsepower and 412 ft.-lbs. For additional questions? Ports were huge, with valves to match. Ive been Ford loyalist for decades. Oh, how quickly people forget! Then, you load the crank with a wideopen throttle. Its advantages are far greater than the sum of its parts. Hes not here to comment, but I believe that is what he used. November 30th, 2022. This is a custom order part. They did, however, lack the adjustable valve train offered on the performance-oriented, solid-cammed (hard to find) Boss 351 heads. Is was meant that Ford guys might think of the newer 4.6L and 5.4L 4 VALVE DOHC TYPE ENGINE and that people forget about the 4V & 2V cylinder head desensitization of the 351 CLEVELANDS. FORD 351 / 393 STROKER CRANKSHAFT 3.850" FORGED 4340, 351C Cleveland mains, Windsor, Stroker C 393 STROKER, FORGED, INTERNAL BALANCE, 351C MAINS, It does not mean Brinell tested. Forged steel crankshafts are typically made of 4340 hardened steel. A cast crank does well with steady, consistent applications of power. BTW the M has a 351 Windor crank in it. Weve been long taught to believe we must have a steel crank to do highperformance work. 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. Its a no-twist formula that comes from a special heat-treating and shot-peening process that ensures pinpoint accuracy at high RPM. A crankshafts primary job is to convert heat energy into rotary motionand power. Stroke, Ford, 351W, Cleveland Mains, Each, Crankshaft, 4340 Steel, 2.750 in. if ordered today, Crankshaft, Ford 351C Cleveland 4340 Forged Crankshaft ST-4.250 M-351C RJ-2.100 Ext, Estimated USA Ship Date: I have to admit, although I am telling you how to treat a Clevelands factory internals, it makes more sense these days to pump up the displacement and get more durable components in the process with a good aftermarket stroker package. Yes this set up is pretty weak, wrong cam type. Ford's 351ci Cleveland middle block entered production more than three decades ago in the fall of 1969. A flat-plane crank has two throws at the north position and two aimed south. Compared to the pedestrian 2V versions, the mighty 4V heads (and intakes) reigned supreme, a fact illustrated by usage on all the top factory performance Cleveland motors. You are here: Home. May 1, 2023 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. Stroker Conrods - Ford 393 408 Cleveland. Seal end gaps should be staggered away from main cap parting gaps. I get asked from time to time how to tell the different between a cast and forged crankshaft. Stock Crank and rods, 30 over trw 2348 pistons, OC heads cut .060 59cc, Ported intake and exh. Though you see 4MA, 4MAB, 5MA, 5MAB, the additional A or B is nothing more than an engineering revision to the casting. K1 Small Block Ford 3.400 Stroke 302 Forged Crankshaft 011DAI340. 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. Bryant Crankshafts Watch on ABOUT US Bryant Racing Home of the Crankshafts that Champions Choose And never take for granted that a new crank is clean and free of debris. 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. The LT6 is comprised of a two-piece aluminum block mated at the crankshaft centerline and topped by aluminum cylinder heads. I did this back in the 90"s. 351w block. DONT CHIME IN ON CONVERSATION YOU OBVIOUSLY need to do some of your own proof reading Mr negatively. As a result, they can make do without the heavy counterweights. Estimated International Ship Date: Monday 3/6/2023 345/210@.600, 12.29 comp, Comp Hyd roller .612/245 dur (not a great cam but low DCR allows 93 octane) AWESOME sound!, Sheetmetal intake, EFI Megasquirt, 2-1050 cfm 4barrel throttle bodies, C4 with GV overdrive and 4k stall, 380 gears. I believe Marvin used a small-block Ford spider. BEST WISHES TO ALL CLEVELAND GEAR HEADS AND AS A SCOT LIVING IN AUS SINCE 73 WE LOVE THESE ENGINES Mar 29, 2023 Estimated International Ship Date: (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. The fastest and most powerful Ford modular V-8 in the world turns 10,000 rpm, makes 3,000-plus horsepower, and runs 5.92-second quarter-mile passes with a cross-plane crank. It is the shock nature of nitrous and pressurized induction that can break an iron crank. Estimated International Ship Date: I shouldnt say wrong but it IS very misleading. You can order this part by Contacting Us. The forging is then heat-treated via a quenching process and allowed to cool before being machined into its final configuration. 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. As its name suggests, a Flat plane V8 crankshaft has all its crank pins in a single plane. The article is all about flow rate so I dont see how using an aftermarket intake manifold with smaller runners is going to increase the flow rate through the engine. All 351 Cleveland owners should read Geore Pences articles. Meanwhile, in Australia, Ford continued with great improvements in the 302 and 351C engines. You can also visit the ROUSH Competition Engines direct website. This engine was rated at 118 horsepower and 193 lb-ft of torque. 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. The 351M and 400 have a taller deck at 10.297 inches. SBF. Were working with the late Marvin McAfee of MCE Engines in Los Angeles on a 351C he was building back in 2008. What you see is what you'll get! You also want to crossdrill where necessary and chamfer oil holes to improve oil fl ow at the journals. May 1, 2023 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. Who makes the lifter spider and dog bones for a Cleveland? Both approaches are designed to save crankshafts from rework or replacement. Check out the many premium features included with eachMolnar 351W and 351C crankshaft and order today to get started on your next engine project. These 1971 heads got us half way to our performance goal, by featuring the desirable (smaller) quench chambers. For this test, we wanted to illustrate just how much power was lurking in the massive 4V Cleveland heads, so we put together a near-stock displacement test motor. Excessive thrust clearance is more common with manual transmission Clevelands due to clutch activity, which leans on the main thrust heavily each time the clutch is disengaged. The very first sentence of this article is WRONG! 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. The 351C has a 9.206-inch deck height. 4V stands for four-venturi, not for four-valve as the article incorrectly states. The cheapest way to increase compression is to use 351C dome pistons (Keith Black KB Performance Pistons KB149.030). If youre going to push it beyond that, youre going to want steel. It is the strongest crank you can buy for your Cleveland, especially if you intend to spin it above 8,000 rpm, use nitrous, or supercharge. Estimated International Ship Date: Trick Flow Specialties, as one example, offers several different 351C/351M/400 cylinder head part numbers, which enables you to fine tune your cylinder head selection. The answer was simple, the Cleveland familyand the 4V version more specificallyoffered massive head flow. On the left here is a 351M with a 3.000-inch main journal. Stroke, External Balance, Ford, 351C, Each, Estimated USA Ship Date: It mentions 4v and says 4 VALVE.. Lol cast heads have a tiny 4v on the corner of the head. if ordered today, Crankshafts, Cast, 2-piece Seal, Cast Steel, 3.750 in. By the way, the 400 was never called the 400M by Ford. 3,789 3. Based on years of experience with these engines, it is clear to me Ford never produced a mass-production steel crankshaft for the 351C, 400, or 351M aside for perhaps racing and rare factory experimental XE pieces. Estimated International Ship Date: 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 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. Not sure which Ford 351 youve got? Apr 30, 2023 Trick Flow has the broadest selection of heads in the marketplace engineered specifically for the 335 Series Ford middle-blocks. Searched everywhere about port matching airgap or most modern manifolds to the 4 heads and found nothing. It looks very similar to an Inline-4 crankshaft, albeit with longer crank pins to accommodate two big ends. 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. . This is a custom order part. if ordered today, Engine Rotating Assembly, Forged, Crank, Forged, Pistons, I Beam Rods, Ford, 351 Windsor, Kit, Engine Rotating Assembly, Series 9000, Cast Crank, Forged Pistons, I-Beam Rods, Ford, Cleveland, Kit, Estimated USA Ship Date: Stroker Cranks and Stroker Kits for the Ford 351 Cleveland, 393 & 408. The Cleveland engines were never factory equipped with a steel crank. 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. Rust scores new bearings. We have rebuilt tons of customer engines over the years that were all wrong and had parts that didn't work together. Mar 29, 2023 Stroke, Internal Engine Balance, Forged 4340 Steel, Ford, 351C, Each, Estimated USA Ship Date: About | Contact | Terms | Privacy. Comp Cams has a retrofit deal for this combination. 351 cleveland flat plane crank . MaxFlange is a process used on all King engine bearings. Once the forging is trimmed and machined, it gets nitrided for good surface hardening. Stroke, Ford, 351W, Cleveland Mains, Each, Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, Custom Order, Ford, 351C, Each, Crankshaft, 4.000 in. Copyright 2023 by AUTOSALES, INCORPORATED I have 351 Cleveland 1971 Mach 1 Im looking for more power on take off what can I do ? With the reduced rotational mass, the inertia point. 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. ProFlange is a King line of bearing sets with oversize flanges, which allows the cranks thrust to be ground to .010-, .020-, or .030-inch undersize. Theres steel billet on the high end, plus forged steel, malleable steel, and nodular iron (cast iron). 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. Targeted bob weights. 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. Please get it right or continue showing your ignorance? In fact, if you have a 351M, you might as well stroke it to 400 cubic inches because both the 351M and 400 employ the same block and roughly the same weight. Lucky for us, this was easily cured, as L&R simply machined the non-adjustable pedestals to accept rocker studs and guideplates. Estimated International Ship Date: Mar 20, 2023 ( 1 ), Estimated USA Ship Date: Thanks, how can I reach author? May 8, 2023 A flat-plane or cross-plane crankshaft can have a major influence on a V8 engine's characteristics. Molnar Technologies superior 4340 steel 351w crankshafts are extremely strong, precision machined high performance partsand are ideal for use in high performance street cars and trucks, muscle car restorations, and competition cars, trucks, boats and more. Marvin lost his battle with old age at 87 last year, but his legacy of great engines remains. 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 Could be duplicated better with new technology. to 452 horsepower and 412 ft.-lbs. If you study most crankshaft failures, look at where they fail. You just have to decide which cylinder head is right for your application. The original manifold was designed to accept an Autolite carb, but the Holley carb upgrade required only the installation of a gasket and spacer. A steel crank has smoother surfaces and wide parting lines due to the violent forging process. Thanks for the great article. Eagle Specialty Products has its own unique approach to forged steel crankshafts. The short stroke delivered a deck height some 23 mm (0.9 in) lower than the standard Corvette's LT2 V8. Time was when you mentioned 4V, people [] Read full article at http://www.onallcylinders.com []. When you have significant differences in weight, an engine balancer may have to add Mallory metal, which adds weight to counterweights where necessary. The 351C, 400, and 351M crankshaft identification is 4M for the 351C and 5M for the 400. Igor a 1970 Mach 1 with shaker hood. Charles, one of the most popular ways of increasing power is by adding more cubic inch displacement with a stroker kit rotating assembly. The more time involved to make a part, the more expensive it becomes. During combustion the quench area promotes good flame front travel and reduces the probability of detonation. 857 3558 $ - MISCELLANEOUS In addition to the Chevy, Ford and Dodge offerings, we have numerous other crank programs to build what you are looking for. The key to engine component cost is time and materials. Cast-iron crankshafts are the cheapest and most common because theyre easy to manufacture. The . 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. Seal, Ford, 408, Kit, Estimated USA Ship Date: These parts don't work together! One need only look at the current crop of modern Coyote, LS/LT and Hemi motors to understand the importance placed on head flow by the manufacturers. Monday 3/6/2023 A 351C crankshaft has a 2.750-inch main journal, which makes it a different crank than you find in the 351M, which has the 400's larger 3. . Mar 20, 2023 In other words, youhave a broader oil hole surface area at the journal, which increases volume. uk religion statistics 2020 pie chart. Although it is widely believed you shouldnt race with a cast (nodular) iron crankshaft, you can race on weekends with a cast crank without consequence if you prepare accordingly. Seems like a testing void no one is covering. The Cleveland 351 is between a small block and a big block. The referal to 4 Valve only confuses you and others less versed in the Ford world. (Photo Courtesy Tim Meyer, TMeyer, Inc.), Fords 400 bottom end was designed with durability in mind with ts 3.000-inch mains, 2.311-inch rod journals, and 4.000-inch stroke. Everyone then knew it meant 4 barrel carb head. Google Geeorge Pence sticky #3. Cosworth DFV, Coventry Climax, Ferrari F40, TVR Cerbera AJP V8), the Lotus type 918 V8 uses a flat plane crankshaft configuration - as the name suggests, all the cranks pins are in the same plane, unlike the cross plane V8 crank, where 2 of the crank pins are set at 90% to the other 2 (nearly all V8s use a 90% . With proper timing advance settings, the engine should run well using 93 octane pump fuel. Molten liquid iron is poured into a sand cast mold, cooled, heat treated, and machined to what looks like a crankshaft. The 4v or 2v refers to carb installed & designation on air cleaner lid . Never miss a sale on new parts, tools, and more! 50 pound Legal with rounded leading and trailing counterweight edges. The different types of iron alloy are too involved to get into here; however, here are the basics. The motor mounts on a Cleveland and Windsor are the same, the 351M is quit a bit different, 351c amd M have the same valve covers while the Windsor is the same as the 289,302 . Guess its your choice . 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. 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. The Edelbrock intake was actually designed for the smaller-port, aluminum Edelbrock heads, but worked well on the larger 4V heads. SBF. Cant wait. [] erecting one from scratch, which you can do with a Ford Performance BOSS block (M-6010-BOSS302) and Cleveland heads. As a flat-plane crank is, essentially, two four-cylinders sharing a common crank, the exhaust sound is quite unique. Summit Racing can help. In short, it is a crankshaft that makes it part of an automobile engine. May 8, 2023 if ordered today, Crankshafts, Forged-43, 2-piece Seal, Forged 4340 Steel, 3.850 in. The reason you want a steel billet crank is its raw strength. When you look at the two types side by side, the difference in size is quite clear. These crankshafts will fit Ford and Mercury 351w and 351c engines and stroker engines built using these OEM engines as foundations when using OEM or aftermarket blocks that use the 2.750 inch diameter 351c size main journals. Pistons - 351 crank, 302 rods - Cleveland - OzFalcon - Ford Falcon Owners Club All Activity Home Technical V8 Tech Cleveland Pistons - 351 crank, 302 rods Sign in to follow this Followers 2 Pistons - 351 crank, 302 rods By Mr Polson, April 1, 2014 in Cleveland 1 2 3 Next Page 1 of 3 Mr Polson Tourist Administrators 10,043 8,343 posts And when machining the crank, micropolish the journals to get the best oil fl ow and wedge. Back in the day, they WERE referred to as 4V heads and it didnt mean 4 valve as there were no 4 valve heads from anyone back then. Im done flogging the dead horse . Some stubbornly stand by these open-chamber heads, however, theyre a poor choice. Available in 3.48 to 4.125 strokes, weigh 46 to 50 pounds. 29/09/2022. of torque at 3,800 rpm. 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/. Ford could have grown the 400 to 435 to 450 cubic inches with less weight than a big block. Try this experiment: Mention four-valve (4V) Ford to a few fellow enthusiasts and see what discussion pops up. The 351M and 400 have a taller deck at 10.297 inches. The 351C crank is an extremely durable piece that can take up to 7,500 rpm. of torque at 3,800 rpm. The flat-plane crank (sometimes flatplane) is a type of crankshaft for use in internal combustion engines that has a 180 degree angle between crank throws. His specialties is Panteras. Cleveland crankshafts all look the same at a glance; however, they are quite different. Uncategorized. The heads were also treated to a multi-angle valve job and surfacing (63-cc chambers) prior to installation. For those unfamiliar with the fabulous Ford 4V, the question has to be, what exactly made the Cleveland so special? In high-performance applications, you want it midway between .004 and .010 inch and closer to .010 if possible. Estimated International Ship Date: Ships Tomorrow. Cleveland crankshafts all look the same, however, they are different. A cast-iron crank rings, but not with the clarity and crispness of a forged crank. 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. Cleveland Show: Adding Nearly 100 HP to a Free-Breathing Ford 351C. Probe Racing supplied the small-dome, forged pistons, which also featured the necessary valve reliefs for more aggressive cam profiles. The flat-plane crankshaft from Ford's 5.2-liter Voodoo V-8. 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. The 351 Cleveland featured many advancements, especially in the cylinder heads, which were patterned after the 429. Apr 20, 2023 Then, when enough 351 windsors couldn't be made to meet demand, the 400 was MODIFIED with a crank very similar to the 351W to give a similar sized option. Even though the Cleveland 351 came from the small block family, few parts will interchange. The cross-plane design has one throw every 90 degrees at north, east, south, and west positions. EVERYONE MAKES MISTAKES LOL, LETS FOCUS ON THE SOLID INFORMATION AND THE FACT THAT RICHARD IS You can order this part by Contacting Us. What is the difference between nodular and cast iron? Even with a new balanced stroker kit, have it balanced by a trusted professional. Theres a lot of scuttlebutt about 351C, 400, and 351M crankshaft identification numbers, but basic identification has never changed in all these years. 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. However, there is a second, more traditional flat-crank design with the journals arranged up-down-down-up (UDDU) like a familiar inline four. 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.