A good rule to follow is to machine the crank journals to the bearings, and swap bearings around to get optimum clearances. Done the same as article with the exception of slightly larger crane solid lifter cam & an old school torquer intake & H/S rockers . Then, you load the crank with a wideopen throttle. Probably can get the compression to 9.7 to 1 . 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. They are different beginning with the block and its internals. Run first with the stock 4V intake and mild CJ cam, the Cleveland produced 359 horsepower at 5,700 rpm and 372 ft.-lbs. When it comes to mainstream 351C, 400, and 351M crankshafts, basic identifi cation numbers of 4M (351C, 351M) and 5M (400) and 1K (351M only) hold true as excellent means of identification. Apr 30, 2023 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. 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. Its production and service life was all too brief, unfortunately, lasting through the 1974 model year. Wow no dyno but that thing pulled like a Bear 3500/ 7500ish! It looks very similar to an Inline-4 crankshaft, albeit with longer crank pins to accommodate two big ends. What you see is what you'll get! to 452 horsepower and 412 ft.-lbs. Estimated International Ship Date: A 3.500-inch stroke adds up to 1.750 inches of throw. 302 351 Cleveland 4 barrel 2v manifold in good condition. This 351C was shipped to Marvin from the Midwest with its share of issues. Searched everywhere about port matching airgap or most modern manifolds to the 4 heads and found nothing. The lighter the crank as well as rods and pistons, the faster your Cleveland revs. 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. Wednesday 2/15/2023 What this means is that they respond very well to other performance mods, like a healthy cam and improved induction system. You can order this part by Contacting Us. During combustion the quench area promotes good flame front travel and reduces the probability of detonation. Are the lifters for a small block Chevy? The LT6 is comprised of a two-piece aluminum block mated at the crankshaft centerline and topped by aluminum cylinder heads. Forged steel crankshafts are typically made of 4340 hardened steel. I thought one or two of you guys might enjoy reading my ramblings about building 351C 4V street performance motors in the 1970s. The short stroke delivered a deck height some 23 mm (0.9 in) lower than the standard Corvette's LT2 V8. 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. BEST WISHES TO ALL CLEVELAND GEAR HEADS AND AS A SCOT LIVING IN AUS SINCE 73 WE LOVE THESE ENGINES Our precise, no compromise production efforts deliver dimensional accuracy that is second to none. The 351C has smaller 2.750-inch main journals, which means you would need the journals turned down by a competent machinist. A flat-plane or cross-plane crankshaft can have a major influence on a V8 engine's characteristics. We have 1,100 plus programs for our FORD cranks, from the 302 to the 351 to the 429 JC50 to choose from. Instead of hammering molten 2,600-degree F metal into shape, it applies tremendous pressure to the nearly liquid metal. Enthusiasts get this mixed up all the time, but there is but one truth. Uncategorized. Before assembly, the stock rods were treated to polishing, shot-peening and a set of ARP rod bolts. $550 to $720 * Crankshaft weights are approximate depending on target bobweight. Youre right, Mike+Brown. Is it just a repurposed small block Chevy part? The balanced rotating assembly (typically includes crankshaft, pistons, rings, connecting rods, rod bearings, and balancer) featured in this engine: A cast crank has fewer flaws as a rule and generally has a rough surface with narrow parting lines. 351C/425HP Balanced Crate engine with Aluminum heads. Cleveland crankshaft identification is easy and based on codes stamped into the first counterweight. Stroke, Ford, 351W, Cleveland Mains, Each, Crankshaft, 4340 Steel, 2.750 in. Manley SBF 4.100 Stroke 4340 Forged Crankshaft 351C & Windsor 2.750 Mains - 190340. The more time involved to make a part, the more expensive it becomes. Here's a 351C-2V combination that will run on premium 91 pump gas (9.2 compression) I developed over 20 years ago but looking back, it was a superbly balanced street performance set-up and a real blast to drive in the 73 Mustang I had at the time. Cleveland crankshafts all look the same at a glance; however, they are quite different. 'New' Lightweight SBC Crankshafts An all new forging that moves the moment of inertia outwards, to make a lighter shaft with good harmonics. 1980-1981 Fox Body Mustangs. What makes the 351M and 400 different than the 351C is larger main and rod journal sizing along with the raised deck block. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The hunt for a 4-bolt 351C block begins. This is where engine building gets expensive. 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). I love my 351 Cleveland. The flat-plane crankshaft from Ford's 5.2-liter Voodoo V-8. If you do not find the small block Ford 351 crank you need, please contact us for assistance. Sep 11, 2008. With a flat-plane crankshaft, pistons in each bank of the engine rise and fall in pairs. A crankshafts primary job is to convert heat energy into rotary motionand power. by user-z68766209 Tue Sep 04, 2012 9:25 pm. Based on four decades of experience with this engine and the many people Ive seen build Clevelands, this is a crankshaft with a great reputation for durability, especially if you inspect and prepare it properly. Instead of controlling compression with a dished piston, Ford made the chambers large like an indoor football domed stadium. Why didnt they do a test with the stock intake manifold and the cam upgrade? The . if ordered today, Engine Rotating Assembly, Cast Crank, Forged Pistons, I-Beam Rods, Ford, Cleveland, Kit, Estimated USA Ship Date: Mar 16, 2023 The flat-plane or single-plane crankshaft is the original V8 design, which has its crank pins at 180. Stock Crank and rods, 30 over trw 2348 pistons, OC heads cut .060 59cc, Ported intake and exh. Concentricity and surface finish are the two most desirable features in a high performance crankshaft journal. On the left here is a 351M with a 3.000-inch main journal. VPE Crankshaft_4340 Forged Steel_Ford 351 Cleveland_4.100 Stroke_2.100 Journal_6.200 Rod_ 1 piece/2 piece_Internal Price $980.00 P/N: 1103-10026 Internal Balance The 400 used the same cylinder heads as the 351C-2V with the same open chambers and smaller torque friendly port sizing. These parts don't work together! Copyright 2023 by AUTOSALES, INCORPORATED Please note that Checkout Prices will be in US Dollars. they are actual inventory from our shelves. The Cleveland had the best flowing heads for a SB Ford before aftermarket heads, thats what made them great motors pre 1990s. Leib breaks it down by saying the flat-plane crankshaft offers better cylinder head breathing symmetry and scavenging. Actually I much prefer the 4V on the street and for great responsive low end power. After our baseline, we replaced the Elgin CJ cam and 4V intake with a Comp XE284H cam and Edelbrock Performer RPM Air Gap intake. Magazine tech writer and book author Richard Holdener proved you can throw nearly 600 hp at this bottom end and it stays together. A cross-plane engine throws its pistons in 90-degree angles, creating a "cross" design when viewed from above. 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. Stop by our booth in Indianapolois at the 2022 PRI show from December 8-10, 2022. We all know that 4V stands for 4 venturi, a.k.a. Even with a new balanced stroker kit, have it balanced by a trusted professional. Expect to see 1K for 351M. Cast is good for anything up to 450 hp. 0:00 / 2:32 Shelby GT350: Ferocious Flat Plane Crank Sounds DtRockstar1 79.6K subscribers 87K views 3 years ago We capture the sounds of a 2018 Shelby GT350 and the high revs of the flat plane. 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 . 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 The machine work included boring and honing the block to accept a fresh set of .030-over, forged slugs. The 351M and 400 have a taller deck at 10.297 inches. If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. 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. A wide variety of displacement sizes can be built using these cranks as the foundation for a 351 stroker kit. Maybe a little correction is in order, just for accuracys sake? Shop ROTATING ASSEMBLIES Because there are many torsional stresses on a crankshaft, a lot of thought needs to be given to crankshaft selection. The answer was simple, the Cleveland familyand the 4V version more specificallyoffered massive head flow. Thursday 1/26/2023 The 5.2L V8 Ford Voodoo engine is one of the more interesting engines in FoMoCo's recent history. 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. Ford 351 Cleveland engine - 10.2:1-C/R. The 4M crank has a 3.500-inch stroke and a 2.750-inch main journal. After our baseline, we replaced the Elgin CJ cam and 4V intake with a Comp XE284H cam and Edelbrock Performer RPM Air Gap intake. valve pockets in the right place came out to be like 390ish ci. Cleveland crankshafts all look the same, however, they are different. Holdener routinely does his dyno testing at the Westec facility which provides access to race fuel which is what he typically uses for best results in all of his builds. Stroke, External Balance, Ford, 351C, Each, Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, Custom Order, Ford, 351C, Each, Estimated USA Ship Date: Cleveland crankshafts all look the same, however, they are different. Though you see 4MA, 4MAB, 5MA, 5MAB, the additional A or B is nothing more than an engineering revision to the casting. Cubic Inch. Engine Rotating Assembly, Forged, Crank, Forged, Pistons, I Beam Rods, Ford, 351 Windsor, Kit Part Number: SCA-1-46019 Not Yet Reviewed Estimated Ship Date: Apr 20, 2023 (if ordered today) Drop Ship Oversize $19.99 Special Order $2,225.99 Add To Cart Compare Wish List Scat Engine Rotating Assemblies 1-94272BE Grade depends on the alloy and quenching (heat treating). Mar 21, 2023 if ordered today, Crankshafts, Forged-43, 2-piece Seal, Forged 4340 Steel, 3.850 in. 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. Combine cylinder head flow with proper cam timing and a decent inductions system, and you have the makings of a serious performer. Seal, Ford, 408, Kit, Estimated USA Ship Date: Excessive endplay beyond .010 inch is unacceptable because it adversely affects crank and rod/piston alignment. This is why you must pay close attention to the fillet area with proper machining and finishing technique, plus the bearings smooth and comfortable relationship with the fillet. The Ford 400 engine was based on the 351 Cleveland. These 1971 heads got us half way to our performance goal, by featuring the desirable (smaller) quench chambers. The 11.0:1 Probe pistons were designed for use with the stock connecting rods. #11. Who makes the lifter spider and dog bones for a Cleveland? When you grind and finish a crankshaft, it is so easy to overlook the fillet radius. Apr 10, 2023, Crankshaft, External Balance, Forged 4340 Steel, 4.000 in. 13 Products Found . DONT CHIME IN ON CONVERSATION YOU OBVIOUSLY need to do some of your own proof reading Mr negatively. I get nervous about turning a crankshaft beyond .010-inch undersize; however, crankshafts are stronger than you think. What is the difference between nodular and cast iron? Its not even misleading, it is plain wrong. K1 Small Block Ford 3.400 Stroke 302 Forged Crankshaft 011DAI340. 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. Required fields are marked *. It also found use in Ford F-Series trucks in 1977-82. Ships In a Few Days. The 351M is a taller decked Cleveland block with larger mains. A cast-iron crank rings, but not with the clarity and crispness of a forged crank. May 9, 2023 And never take for granted that a new crank is clean and free of debris. The tradition V8 firing order. If in the process of machining and mock-up you find excessive crankshaft endplay, King Engine Bearing has two affordable options: MaxFlange and Pro- Flange thrust bearings. It is the shock nature of nitrous and pressurized induction that can break an iron crank. Igor a 1970 Mach 1 with shaker hood. 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. 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. I love Ford for its history as a company along with its products. Thanks, how can I reach author? This looks like two four cylinder engines that have been joined together at the crankshaft. The 351C crank is marked with an identification number of 4M or 4MA. In the early 1920s, Cadillac and Peerless pioneered the smoother crossplane crankshaft, a design that revolutionized the American V8. The thing to remember about crankshafts is that they twist and fl ex as combustion pulses hammer each journal and you put a load on them, which oscillates material such as rubber back and forth. 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. As the crank rebounds, it works on the balancer, which softens rebound shock and reduces the risk of crankshaft breakage. May 9, 2023 First, we know that a conventional V8 engine is designed to generate a power stroke every 90 degrees of crankshaft rotation. The 351C has a 9.206-inch deck height. In short, it is a crankshaft that makes it part of an automobile engine. 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. Rod, 3.75 in. In high-performance applications, you want it midway between .004 and .010 inch and closer to .010 if possible. Ports were either too small or outrageously large. 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. Apr 9, 2023 Preparationshould include Magnafluxing (electromagnetic process of checking for cracks), grinding, polishing, radiusing the journals, and removing all of the stress risers (crack prevention). If you are an international customer and would like to change the currency that prices are displayed in, you can do so here. Thanks! However, the 335 nodular-iron crankshaft, regardless of displacement, is a durable crank thanks to main journal sizing and the good consistency of nodular iron. 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. It reduces crankshaft endplay by supplying a flange on the high side of the tolerance to compensate for excessive crankshaft thrust wear. Guess its your choice . You may also cruise the online auctions for a vintage 5.0L roller block (F1AZ-6010-B). It all moves violently with changes in power application. 857 3558 $ - The 351C crank is marked with an identification number of 4M or 4MA. 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. + 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. Rarely do you see a mid-journal failure or a break at a counterweight. Crankshaft materials vary considerably and require a lot of thought. if ordered today, Crankshaft, Ford 351C 4340 Forged Steel Crankshaft ST-4.170 M-2.749 MRL- 6.0 Bal-Ext. Just saying. Thanks for the great article. In fact, Ford planned 500+ cubic-inches for the big block, which never materialized amid environmental concerns and the Arab Oil Embargo. Estimated International Ship Date: 351 Cleveland/Windsor Stroker kit includes: 4340 Forged crankshaft (90% possible internal balance without adding heavy metal) Forged H-beam rods W/ 7/16 ARP 2000 bolts (Exclusive Centralign design) Custom forged CP-Bullet flat-top pistons; King performance rod and main bearings; CP (Mahle/NPR) ring set, 1.5MM, steel top ring, Napier 2nd ring . Time was when you mentioned 4V, people immediately thought of the 351 Cleveland, and the massive port openings offered by those amazing cylinder heads. About | Contact | Terms | Privacy. Ford Australia began local production of the Ford 'Cleveland' V8, an overhead valve cast-iron engine. if ordered today, Crankshaft, Ford 351C 4340 Forged Steel Crankshaft ST-4.100 M-2.749 MRL- 6.0 Bal-Ext, Crankshafts, Cast, 2-piece Seal, Cast Steel, 4.000 in. Ford Mustang Shelby GT350. K1 Ford 351 Cleveland 4.000 Stroke Forged Crankshaft 011EAD400. Estimated International Ship Date: Cast-iron crankshafts are the cheapest and most common because theyre easy to manufacture. I shouldnt say wrong but it IS very misleading. You spend so much time focused on journal surfaces, oil hole chamfering, and balance you forget to examine fillet radius and the bearings important relationship with it. Unported, just minimal valve pocket clean up on 4 V. Cleveland cylinder heads. Whether youre doing a mock-up or final assembly, journals and bearings should be generously lubed with engine assembly lube. These stroker cranks are an excellent choice for use in building a high output, light and compact Ford V8 engine powered vehicle. A carefully tuned crankshaft damper helps manage the vibrations, and holes . 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 arrived in 1970. Chamfering improves oil fl ow to bearings and journals by reducing resistance to fl ow. The 351C, 400, and 351M all have a two-piece rear main seal. I wonder what the numbers would have been if they port matched the edelbrock airgap to the heads? 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 For additional questions? The original 4V, 2-bolt, 351C was disassembled and treated to some first-class machine work by L&R Automotive. 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.