Scat Nodular Iron Crankshaft

Small block Chevy Crank Shaft castings numbers; Casting # Engine Forged/Cast Journal Stroke of crank Forged crank: Large journal 2. 438 Nodular Iron. 030 bore x 3. New SBC 383 2 piece seal cal auto transport 2. The paper offers results obtained in the process of testing high speed diesel engine nodular iron crankshaft fatigue strength. For that much power an offset ground OEM crank, (Chrysler journal size with large filet radiuses and 440 H-beam rods), or a cast steel/nodular iron aftermarket crankshaft would easily be strong enough. 25-inch stroke, 2. 200" Material Iron. Anyone have any comments on the difference/durability of Scat or Eagle? Callies seems to have a really good crank, but they're also really proud of it. Ignition duties are handled by an MSD billet distributor with the vacuum advance left disconnected and Autolite plugs fire the mix. PBM Cast Steel Crankshafts PBM Cast Steel Crankshafts are the perfect choice to replace worn or questionable stock cranks when you're making big, reliable power for street or sportsman racing use. It was a better GM nodular cast iron process that AMC also briefly used for some heavier duty 290 and 343 cranks and rods. Please include your name in the payment reference so we know the payment is yours. To make a cast crankshaft, they heat up iron or steel until it is melted then pour it into a mold, the same as with cast pistons. 480 stroke, 2. A 351C crankshaft has a 2. Ability to make a raw billet into a crankshaft for most any application. The rating of 3 percent can be nearly doubled with the use of nodular iron, but even these pale in comparison to the 20+-percent rating offered by high-end, forged cranks. The final piece of the puzzle to consider is the finishing process. Stronger than nodular iron!Scat Small Block Chevy Stock replacement crankshaft - fits 350 One Piece Rear Seal - This is a new stock, standard size crankshaft. Nodular iron crankshafts raise the bar slightly, offering a tensile strength closer to the 100,000 psi range. Important distinction between cast & forged: Old school cast cranks were ductile (or was it nodular?) iron. Im going to be using 215 protopline heads, comp cams cam, victor jr intake, and some type of demon carb. Ignition duties are handled by an MSD billet distributor with the vacuum advance left disconnected and Autolite plugs fire the mix. ANQING XINYI AUTOPARTS CO. 66" Stroke. Big block Chevy 468 Eagle 4.   Start with a great foundation for your engine build. unless properly pre-heated. Small Block Chevy Crankshafts. Techline 1-800-367-3788 Page 1 of 8 IS-1850-0286 Factory Ford shop manuals are available from Helm Publications, 1-800-782-4356. Crankshaft - Classifieds in Monrovia, CA: 40 HP reground Crankshaft 20, WTB Gene Berg Forged Crankshaft in Placentia, VW Crankshaft Gear Kit For in Hacienda Heights, 69mm Counter weighted Crankshaft in Fullerton, cb performance billet crankshaft pulley in Bellflower. 030" Main bearing bore 2. G3000 is the same iron material that would normally be used for 5 ton trucks!! On all AC Industries adapter brackets we use nodular iron, not flake iron. Stronger than nodular iron!Scat Small Block Chevy Stock replacement crankshaft - fits 350 One Piece Rear Seal - This is a new stock, standard size crankshaft. Ford roller block, bored and honed. As the LS1 scene increased in population both on the streets and the track so too did the horsepower levels and it was fast becoming more and more difficult to find a clutch which. Obviously forged pistons and rods are a must. Save time and money on your LS engine build with a new LS nodular iron crankshaft from GM Parts. Cast-iron crankshafts will work fine in a majority of street applications, especially restorations. 21-inch stroke lengths. 385" H-Beam Rods w/L19 Bolts JE Pro Series Blower Style Pistons 5115 Low Carbon Case Hardened Steel Pins Plasma Moly 1/16 • 1/16 • 3/16 Rings Clevite 77 "H" Series Main & Rod Bearings Internally Balanced $. All factory Holden cranks are nodular cast iron according to the books, and none were made of steel contrary to popular belief? Are any of you Holden V8 gurus able to clear this up for me please? Now that I know the expense associated with an aftermarket forged crank, I am looking for the best crank to use in a stock stroke 308 for use as a. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Some companies, including Scat, will mix in graphite with its cast iron cranks to improved fatigue resistance. Improves Crankshaft Finish: Silicon particles reduce/eliminate microscopic ferrite peaks on improperly ground/polished nodular cast iron crankshafts. -bolt (1/2 in. 6L 90° V-8, Cast Iron Block with Aluminum Heads. 85" SCAT 4340 forged crank). CRANK BASICS. It is available in a number of configurations, with options for either Holden or Chev 5. Both SCAT and Bryant racing do not want to rough machine nodular iron (Meehanite) because when cutting, both a chip and a small granular particle are created. 250 longer stroke then stock) internally balanced crankshaft 2 piece rear seal crank 1965 to 1989. Improves Crankshaft Finish: Silicon particles reduce/eliminate microscopic ferrite peaks on improperly ground/polished nodular cast iron crankshafts. still going strong 2 years later in a turbo 355 with 500hp at the wheels. 1:1 w/ 76cc), w/ 2-Pc. Their materials and technology assure that your standard replacement bearings will perform even. Scat 9000 Crank vs. Race-Tec / Auto-Tec "custom" forged pistons. The material is actually cast iron but the steel content is higher in the 9000 series than the original OEM casting. 7" rods and Chevy 383 pistons. Scat 9000 cast crank is not steel but its nodular or ductile iron. Pistons are forged from DSS Racing (they forge and machine the pistons in Illinois) Rings are a Hastings premium plasma moly ductile iron (made in USA). Most stock LS crankshafts are cast from nodular iron and have proven to be very durable in high-horsepower applications. Ability to make a raw billet into a crankshaft for most any application. FULL RACE SERIES CRANKSHAFTS. If your going to stoke it with 5. Budget minded, performance driven. Same with Childs & Albert. 030 Pistons Scat Crank & Rods - $1,995. The strength ends up between cast iron and forged steel. Click on Ford, Small Block Chevrolet, Big Block Chevrolet, LS Chevrolet, Mopar or Pontiac to view a list of all of the products carried in that product line. The nodular-iron cranks have proven to be extremely durable and are found in the vast majority of production engines. This is the ultimate upgrade for those wanting to run hard. With the Eagle crankyou use 5. A new nodular iron crankshaft made by Scat Enterprises in Redondo Beach, California, is fitted into the main bearings of the Ford block. 60 valves) 64 cc's Crane Energizer 1. Find Enterprises In Stock Now. Stronger than nodular iron!Scat Small Block Chevy Stock replacement crankshaft - fits 350 One Piece Rear Seal - This is a new stock, standard size crankshaft. 4601cc (280ci) Compression Ratio. Pendulum style damper are installed in each end of the crankshaft to produce a resonance frequency equal to two times the engine speed, counteracting the crankshaft's fourth order harmonics. 1100+ HP street / Strip COMPLETE ENGINE. This short block kit is not assembled. Big difference. No problems yet, was thinking of using Scat stoker kit from AW Brown in Scat 9000 - The Jury is back in. in crank Two-piece rear main seal 3. This is our 383CI Stroker that is built not only to perform, but make a statement when you pull up! Scat Nodular Iron external balance rear of crank/internal balance front of the crank. 438 Nodular Iron 2. Aluminum full. If one was made for your engine, the most common steel used is 1038. Ours comes to us from Scat Enterprises in the form of their 4340 steel, standard weight 4. Scat 9000 cast crank is not steel but its nodular or ductile iron. This adds stroke, even if it's just 0. Since our 318 shares the same journal sizes as the higher demand 340, this choice was easy. This engine offers you an incredible performance value - all you need to do is add the additional components with some fresh gas and then let her rip!. Ohio Crankshaft began offering cast-iron Pontiac V-8 crankshafts within the past several years. 500-525 hp. Types of cranks: Arma Steel is the best followed by Nodular and Standard Cast, all are good and Pontiac engines don't have a problem with broken cranks. Nodular iron is the least ductile material used to build cranks, as you go up the scale, you can increase hardness without sacrificing. Types of cranks: Arma Steel is the best followed by Nodular and Standard Cast, all are good and Pontiac engines don't have a problem with broken cranks. It is a stock stroke 400 sbc crank. Stroke, Chevy, 350 Mains, Each. Nodular iron crankshafts raise the bar slightly, offering a tensile strength closer to the 100,000 psi range. Stronger than nodular iron!Scat Small Block Chevy Stock replacement crankshaft - fits 350 One Piece Rear Seal - This is a new stock, standard size crankshaft. Small Block Chevy Crankshafts. This is the ultimate upgrade for those wanting to run hard. Get the best deals on Car & Truck Crankshafts & Parts for Chevrolet when you shop the largest online Scat Crankshaft 2-Pc Seal Ext Balance Cast Steel 4. There are true Cleveland spec aftermarket cranks but they tend to be custom order. 7 rods you might want to spend a little more there stock rods are bulky and require more machine work to the block and grinding on the rods. Choose a cast or forged crankshaft from trusted crankshaft manufacturers like Lunati, Eagle Specialty Products, Callies, Crower, SCAT, Manley, and more! Whether you’re building a mild small block street engine, a mountainous big block race motor, or a potent stroker motor, you’ll find the perfect starting point for your build here. ANQING XINYI AUTOPARTS CO. 250-inch stroke. 480" Forged Crankshaft. The elongation rating of factory cast cranks is an indication of just how brittle they are. This crank was originally manufactured and installed in most 5. Don't know if that is a fact, but guys have ran into the 9's with the stock crank, without a girdle. This is a 4. Same with the "I" as opposed to the "H" beam rod. 700 Rod Pin:2. G3000 is the same iron material that would normally be used for 5 ton trucks!! On all AC Industries adapter brackets we use nodular iron, not flake iron. Our COME Racing billet cranks begin life as a round bar of the finest billet 4340 grade steel. Big difference. I'm assuming the same with their rods. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. As with all new crankshafts, check for clearance - Clearance work may be required in a few applications. Are the Scat cast crank kits with Icon 745 pistons worth a crap? $1,500 for a balanced rotating assembly seems pretty inexpensive. FORD and Mustang Crankshaft ( 6303 ) 1M. With the Eagle crankyou use 5. If one was made for your engine, the most common steel used is 1038. The SCAT cast iron cranks are much stronger than the stock GM 400 cranks, and will last much longer is any serious race engine. 750 stroke, SCAT CRANK & SCAT COMPETITION RODS. Are there any corners cut with these?. At the bottom of the list is a standard cast-iron production crankshaft, which typically has a tensile strength of 65-80,000 psi, and is fairly brittle with an elongation rating of some 3 percent. external balance damper and flexplate or flywheel. 850 Stroke Nodular iron Crankshaft - DUCTILE Moly Rings - Clevite tri metal Rod And Main Bearings NOTE: This Stroker Kit is customizable to fit your application. it moves across the floor when you crank the remote and plays the record when you turn the crank on his back. 380" Block deck height 8. Some companies, including Scat, will mix graphite with its cast iron cranks to improve fatigue resistance. Valve Configuration. The castings are constructed of nodular iron and weigh about 70 pounds. 400 • Displacement: 347 • Crankshaft: Scat nodular iron external balance 28oz • Rods: Scat 4340 forged I beam with ARP 8740 bolts • Pistons: Forged 10:1 compression • Rings: Moly • Camshaft: Hyd. DSS Racing offers a wide variety of stroker kits. It was a better GM nodular cast iron process that AMC also briefly used for some heavier duty 290 and 343 cranks and rods. Upgrade from traditional cast iron which was used on GM and Optimi Genuine Scat crankshaft for your 6. cast steels are steels that are casted. 00 extra recommend for the buck!!). As the LS1 scene increased in population both on the streets and the track so too did the horsepower levels and it was fast becoming more and more difficult to find a clutch which. Therefore, spending extra money on a forged crank in a stock block is a waste. Please include your name in the payment reference so we know the payment is yours. SCAT Crankshafts uses only finest billet material in the world. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. 00˝ stroke 340 main journal crankshaft. Both SCAT and Bryant racing do not want to rough machine nodular iron (Meehanite) because when cutting, both a chip and a small granular particle are created. Enterprises For Sale. I just scored a deal on a brand new 9000 series 400 sbc scat cast steel (nodular iron) crankshaft for 100 bucks from a guy just a couple miles from me. I have read several articles where they say that the new nodular iron cranks from Scat and Eagle are in many ways stronger than a 60's forged crank due to quality and technology in manufacturing. Assemblies come standard with a Daytona pinion support and choice of street/standard gear ratio of your choice. Give ample power to your cruiser or muscle car with this ATK SP17 Ford 393 Stroker Short Block Engine. in crank Two-piece rear main seal 3. unless properly pre-heated. I'm assuming the same with their rods. 030" Main bearing bore 2. Lower classes are often restricted to cast steel or OEM-type nodular iron cranks, which per­form admirably in many sportsman classes, but are functionally unsuited for high-horsepower applications. When Ford made the nodular case in the 70’s, they just used the cast iron caps and that was a pretty weak case. One way is to offset-grind the crankshaft rod journals, adding some meat at the top of the rod journal, then grinding the journal true again. To make a cast crankshaft, they heat up iron or steel until it is melted then pour it into a mold, the same as with cast pistons. The rating of 3 percent can be nearly doubled with the use of nodular iron, but even these pale in comparison to the 20+-percent rating offered by high-end, forged cranks. Like a 377 but with more cubes. Commonly used in entry-level aftermarket crankshafts, cast steel has greater carbon content than nodular iron, and a tensile strength of about 105,000 psi. Most production crankshafts are cast, but when Chevrolet first built the 265ci small block, it came with a forged crank. It will get. 100New Standard Size crankshaft manufactured with Scat's 9000 Material. Overview of SCAT Crankshafts CNC machining line which. Race-Tec / Auto-Tec "custom" forged pistons. In different forums I read: never lay a crankshaft down, always stand it on end (or hang it), or it will WARP or BEND. This gives the cast iron more strength and flexibility. 00˝ stroke 340 main journal crankshaft. M-6007-S347JR Sealed Crate Engine INSTRUCTION SHEET NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT PRIOR AGREEMENT AND WRITTEN PERMISSION OF FORD RACING PERFORMANCE PARTS. ATK HP36C Chevy 383 Stroker Complete Engine, or Stage 3 Engine, is designed for those that are wanting to drop the engine into their project and fire it up. The method of billet crankshaft manufacturing is mainly decided according to the crankshaft material selected by our customers. just after some thoughts and opinions on scat 355 cranks. Race-Tec / Auto-Tec "custom" forged pistons. Nodular iron is the least ductile material used to build cranks, as you go up the scale, you can increase hardness without sacrificing. Anyone have any comments on the difference/durability of Scat or Eagle? Callies seems to have a really good crank, but they're also really proud of it. Nodular Iron Crankshafts Perfect for the budget street/strip racer Available in various stroke and rod configurations 1 or 2 piece rear main seal Large radius on all journals Strong castings are perfect for under 600hp. • Highly polished journals. how much RPM's HP/Torq can i run on this crank and have it be a reliable street car? i have looked a round but found nuthing the casting nuber is 3904815NF 2bolt 402 haven't got the cam yeat. 3L engine codes LMG, LMF, LH6, and LY5. Nodular iron crankshafts raise the bar slightly, offering a tensile strength closer to the 100,000 psi range. cast steels are steels that are casted. Kits for: Small Block Chevy 350, 377, 383, 396, 400, 427, 434. 100-150 shot, 6 lbs of boost, a trannybrake with a 2200 rpm conveter will work fine with a cast crank. making it easier to machine. ATK #SP24F Crate Engine, Short Block, Ford 347 Stroker Small Block, 2-Bolt Main, Scat Nodular Iron Crank, ;Forged Flat Top Pistons, 1-Piece Rear Main Seal, Hydraulic Roller Style, Each. Can I get away with a Nodular crank, or should I go forged there too?. Cast and nodular iron crankshafts are what typically come from the OE manufacturer. FULL RACE SERIES CRANKSHAFTS. Racing Forged SX Pistons - Forged 5. scat crankshafts offers a complete line-up of crankshafts from stock replacement to custom billet, i-beam and h-beam connecting rods and complete rotating assemblies for chevy, chevy ls, ford, ford modular, ford vintage, chrysler, modern hemi, pontiac and sport compact. 7 H-beam rods etc. how much mallory is needed, if any, versus the Scat 9000 cranks which took 2 or 3 slugs for nuetral balance?. The rating of 3 percent can be nearly doubled with the use of nodular iron, but even these pale in comparison to the 20+-percent rating offered by high-end, forged cranks. I know of several people running the 350 Scat crank no problems at all, there is even a lightweight 48 lb Scat cast crank and everyone I know that has one has had good luck. 95" Windsor rods or 6" Chevy rods, custom pistons. We have installed well over 100 China cranks w/o and issues for install or performance. For a rotating assembly we use forged I beam connecting rods (either scat or eagle) and new GM nodular iron crankshaft. 6:1 compression ratio with 70cc heads. 100New Standard Size crankshaft manufactured with Scat's 9000 Material. These crankshafts are the same ones used in GM crate engines. Pistons are forged from DSS Racing (they forge and machine the pistons in Illinois) Rings are a Hastings premium plasma moly ductile iron (made in USA) Timing chain is a Manley double roller billet. The Scat crank is a good crank, the scat rods are nice too and come with ARP bolts. Ours comes to us from Scat Enterprises in the form of their 4340 steel, standard weight 4. It was still cast iron, just a little better cast iron then regular cast iron. The final piece of the puzzle to consider is the finishing process. Many factory cranks we check have stress cracks, so even though your crank has not broken yet, you may have a problem developing that could destroy your engine. how much mallory is needed, if any, versus the Scat 9000 cranks which took 2 or 3 slugs for nuetral balance?. Most production crankshafts are cast, but when Chevrolet first built the 265ci small block, it came with a forged crank. There was an ocean of difference in the strength of the two materials/processes. Metallurgically speaking we are talking the same thing, only difference is in semantics. National Australia Bank. Most common applications are for 5. ryan Dirt Forum Champ Total posts: 776 posted January 03, 2005 08:47 PM. Budget minded, performance driven. Ford S/B Cast Crankshafts * Main caps: Nodular iron 4. Ohio Crankshaft offers a wide array of crankshaft applications for Ford, Small Block, Big Block, and LS Chevrolet, Chrysler and Pontiac applications. The crank is a SMC modified. Nodular Iron material - stronger than OE iron (gray iron) castings Nodular Iron casting - less expensive than billet steel, chromoly steel or billet aluminum flywheels Multi-drilled clutch patterns - allows for use of different size clutches without re-drilling Nodular iron construction - allows for limited resurfacing for extended use. 5L diesel build Brand new, not re-manufactured 1 piece rear main. We can help you with a stock stroke crank as well as long stroke forged stroker crankshafts. City Motor Supply is a third generation, family-owned business providing precision quality remanufactured engines, automotive parts, and machine shop services since 1943. 25 cranks weigh versus a Scat 9000 nodular iron 4. Same with Childs & Albert. 030" Main bearing bore 2. As with all new crankshafts, check for clearance - Clearance work may be required in a few applications. The machinist said it would be easier to balance the assembly with this crank. I know of several people running the 350 Scat crank no problems at all, there is even a lightweight 48 lb Scat cast crank and everyone I know that has one has had good luck. Most racing applications use a steel forging or a billet steel crank­shaft. New Scat Forged 4340 Crankshafts Fits Ford 351 Cleveland Main 4-351c-4100-6200-3 R Ext 6. Overview of SCAT Crankshafts CNC machining line which. Race-Tec / Auto-Tec "custom" forged pistons. Hydraulic or solid flat lifter "custom" camshaft & components for meeting your needs. This engine offers you an incredible performance value - all you need to do is add the additional components with some fresh gas and then let her rip!. Metallurgically speaking we are talking the same thing, only difference is in semantics. Scat Nodular Crank Roush 200 heads cast iron (2. All 300HP and below engines received the cast iron nodular iron Same basic design as the 307 crankshaft with 3. FULL RACE SERIES CRANKSHAFTS. The Strange Engineering S-Series nodular iron case features a radial rib design for increased strength and is manufactured in the USA from premium grade nodular iron. DSS Racing offers a wide variety of stroker kits. cast steels are steels that are casted. Most production crankshafts are cast, but when Chevrolet first built the 265ci small block, it came with a forged crank. in crank Two-piece rear main seal 3. Built for tough use, this assembled engine features forged pistons, forged connecting rods, nodular iron crankshaft, and sealed freeze plugs and oil galley plugs. 1100+ HP street / Strip COMPLETE ENGINE. scat nodular steel 454 bbc big block chevy crankshaft for 1pc rear main seal bbc chevy engines using 6. Nodular cast iron (also referred to as ductile iron) is characterized by having the graphite content of the iron form nodules during casting rather than flakes, this nodular formation of the graphite further inhibits the formation of stress cracks and strengthens the material against impact and fatigue. Later, manufacturers learned that they could build a very durable crankshaft out of nodular iron that was strong enough to survive well past 100,000 miles of daily use. I wonder if the counterweights are larger. 85" SCAT 4340 forged crank). In short, if you can't use a good harmonic damper, this is the crankshaft for you, it will increase your engine's life. There was an ocean of difference in the strength of the two materials/processes. Cast steel, and cast iron are different. This is a work in progress and not guaranteed to be correct. SCAT forged 4340 connecting rods - w/ARP 7/16" cap screw bolts. 124 Conrod journals, rope. The Scat high-nodular iron crankshaft delivers a 3. hi every one! I am new to this site and i am working on a bbc402 with a Nodular Iron Crankshaft that is being turned and balanced right now. Fits GM 1997-2004 LS1/LS6 5. Scat forged will go above 1000 hp. McLeod's Nodular Iron Flywheels are a high quality yet low cost alternative to the hassles of resurfacing a flywheel. 3" thread also. This engine offers you an incredible performance value - all you need to do is add the additional components with some fresh gas and then let her rip!. We have installed well over 100 China cranks w/o and issues for install or performance. Scat Crankshaft. Forged crankshafts are easily identified vs cast because a forged crank will have a wide parting line running. Are forged cranks necessary in performance engines? Yes they are in many incidences. Double Overhead Camshafts, Chain Drive to Exhaust Cams, Secondary Chains from Exhaust to Intake Cams, Roller Finger followers with Hydraulic Lash Adjustment, Beehive Valve Springs. A steel crankshaft is inherently superior— especially in severe service, in which it is exposed to extremes in terms of power or cycle. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. Racing Forged SX Pistons - Forged 5. Main Journal Dia. The tradition continues to this day with a 42,000 sq/ft facility in Redondo Beach, California. Street/Strip car. These crankshafts use part number prefix QT for example QT-039. Nodular cast iron crankshafts Our nodular cast iron crankshafts are made to fit the Holden V8 308/304, Rover V8 and MG-TC engines. Account name: Faru P/L Trading as COME Racing. scat nodular steel 454 bbc big block chevy crankshaft for 1pc rear main seal bbc chevy engines using 6. 7" connecting rods and to suit either rope or lip type rear main seals. As with all new crankshafts, check for clearance - Clearance work may be required in a few applications. There was an ocean of difference in the strength of the two materials/processes. 5in Dia Nodular Iron Ford Cleveland. 438 Nodular Iron 2. This is a nice piece at a budget price. 5L diesel build Brand new, not re-manufactured 1 piece rear main. To connect our stroker crank to the appropriate compression height pistons we used a set of Scat Pro. Ford roller block, bored and honed. the carbon exists in graphite spheres. The spacer is not a press-fit and you can push it on by hand. Like our Forgings, each crankshaft is skillfully machined, precision finished,. But not forged steel. Most cast iron crankshafts have a tensile strength in the 65,000-80,000 psi range. 85" SCAT 4340 forged crank). City Motor Supply is a third generation, family-owned business providing precision quality remanufactured engines, automotive parts, and machine shop services since 1943. Main Journal Dia. 48¨ stroke Internal balance (suits 5. crank and a gm iron stock crank, allot of guys I know are saying the gm cranks are just as good and you need to get a forged crank. Starting at the lowest level of performance, there is cast ductile and nodular iron. Crankshaft balancing requires special equipment and specially trained machinists or engine builders who understand what needs to be done, and how to do it properly. 480" STROKE this is the set up im looking at. But later at the bottom the material is listed as cast iron. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Valve Configuration. That was a Scat nodular iron crank ,all that was available at that time. 21-inch stroke lengths. ATK SP61 Chrysler 408 Magnum Short Block, Call 866-721-2315 to Speak with an ATK Crate Engine Specialist. Ignition duties are handled by an MSD billet distributor with the vacuum advance left disconnected and Autolite plugs fire the mix. I have read that a few of the 383 cranks break but I don't know this first hand I have only read it. Their materials and technology assure that your standard replacement bearings will perform even. In addition to our Forged offerings, the SCAT Exclusive Billet line-up includes 100% in-house design & machining from start to finish using materials such as 4340 Billet or EN30b. The crankshafts are available in cast-iron and forged steel. I just scored a deal on a brand new 9000 series 400 sbc scat cast steel (nodular iron) crankshaft for 100 bucks from a guy just a couple miles from me. 6:1 compression ratio with 70cc heads. This engine offers you an incredible performance value - all you need to do is add the additional components with some fresh gas and then let her rip!. 2 in/oz balance. My internal balance Scat 9000 was $209 delivered to my door. SCAT forged 4340 connecting rods - w/ARP 7/16" cap screw bolts. Wear Resistance: During engine operation, silicon particles round off crank journal high spots, reducing friction and related wear. This crankshaft is a large journal and made in both cast iron nodular and forged steel. 480" STROKE this is the set up im looking at. No problem with Scat stuff. These crankshafts are new cast pieces made with modern material and casting processes to be a great alternative to 30 year old factory cranks. See our products below. With a stock block the cast iron stroker crank, generally a nodular iron casting, will outlive the block.