We've had zero failures on over 1500 of these engines built. This is a large runner dual plane intake. Hello, I purchased a SBC 421 ci kit from Skipwhite performance. Ohio Crankshaft. This engine is best suited to operate with an electric fuel pump, with a pressure regulator set at 5.5-6.5 psi. These additives are very valuable for high performance engines. If you want any hope of getting it together for 3 grand, run a standard 3.75" stroke, 5.7" rods, about a 200-215cc sized head, a solid flat tappet cam, and a victor intake with a 750DP. This particular 421 cubic inch small-block Chevrolet engine build was started as a father/son project while Army veteran Mike Sargunas was stationed abroad in Afghanistan, and was designed to replace a 383 SBC . We also offer a premium NGK plug that is highly suitable for this engine when running in very hot climate. Below are pictures showing how your engine is prepared for shipping. **********************************************************. This engine should make around 700hp.". If it is excessively rich, cylinder wash-down from excessive fuel will destroy your bore finish, pistons, and rings quickly, not to mention cause excessive fuel consumption. As it's been said, "an ounce of prevention is worth a pound of cure.". Our custom made pistons have a compression height that is .010 taller on bbc pistons, and .015 taller on sbc pistons, as compared to most all of the catalog pistons on the market. We use the best name brands such as Dart, Callies, Lunati, CP-Carillo, Eagle, Scat, JE, Diamond, Mahle and Manley just to name a few. Set engine idle at approx. Every aspect of our engines can now be monitored, calibrated, and tuned. 350 MAIN, 400 BORE SIZE BOWTIE SPORTSMAN BLOCK, 1-PIECE REAR MAIN SEAL. - SCAT 4340 FORGED CRANKSHAFT, CLEVITE HP BEARINGS. Extreme duty pickup designed not to fail. The great pretenders continued capitalizing on our success due to the name similarity, but degraged our reputation. 4.155" max bore (siamesed cylinder bores) Extra-smooth gasket surfaces. 3. The cooler you keep the engine, the lower the risk of detonation. See our other listings. WISECO PISTONS ARE 100% MANUFACTURED IN THE USA. Drive safely please but keep your engine under load more than normal and bring the rpm up and back down to seat the rings much better and faster. Lebanon , NJ . The '66 Chevelle was lonesome in the garage & Mark wanted a small block Chevy .If you have ANY questions, please contact me through my websi. We also include an engine stand like the one pictured, wheels included, and an engine lift plate. Our Scatrods are bronze bushed, and unlike Eagle I beam rods, these are fully forged 4340 alloy. 20 minutes under a simulated load at around 3k rpm to promote initial ring seating. Should you ever decide to sell your car,theresale value of a street rod with a 421 engine is very desirablecompared to those running 383's. The block was taken to a bore size of 4.155 inches, and mated with a 3.875-inch Callies Compstar crankshaft for a displacement of 421 ci. When a rod bolt fails during high RPM, total engine destruction is usually the result. Felpro premium oil pan gaskets are used on all of our engines. Upon further investigation you will find such parts not to be a branded name product. We have an "A+" rating with the Better Business Bureau and we have maintained the A+ rating for many years. Home; Crankshafts; . Official Dyno report with this cam, NKB heads, -13cc dish pistons, single plane intake, 1.5 rockers, SL 750 carburetor, and HEI distributor. Besides the obvious issues such as incorrect sizing and machining that is difficult to correct, the, Failures of such critical parts will usually result in. This customer with the 421 Chevy wants to run 9.50s on motor and 8.50s on nitrous. Not using the existing heads,going to AFR 220 race version. This is a somewhat labor intensive procedure and is not required, but the feel of an absolutely vibration free engine at high rpm is desirable by many. The Scat cranks are the best valueyou will ever find. Take notice of the design of these rods. Should you have a Turbo 350 trans, then this cam choice would allow you to run a somewhat taller final gear to allow decent highway driving in the lower rpm ranges. In the second year, the warranty will cover all parts minus any labor to remove and install needed parts. The ARP-2000 rod bolts are a very good upgrade, in our opinion. Brand New. We do offer this engine with a manual flywheel. You can see this and other upgrade options in our ebay store under the "UPGRADES" category, or simply do a search with the key word, "Upgrade" in the search bar when shopping in our ebay store. Made in the USA from 4130 chromoly steel. They continued to use the White Performance & Machine name. Some customers bought our engines and did not fully understand our warranty and the maintenance needs of the engines. The print seal material was partially dissolved allowing great amounts of coolant into the combustion chamber. It is then run for approx. In some cases we can build certain engines with a reduced compression that will run on regular fuel or mid-grade, but these engines are to be setup with greatly reduced camshaft profiles. All the parts appear to be good quality. We now use the Clevite bearings in our engines. Drivability is fair at best with this cam, unless you have a very light car, with a decent final gear. Fred White began competing against us even though our contract had a non-compete clause in it. We have had a vast amount of experience with the Dehphi hydraulic roller lifters. What's the BEST SBC to build for bracket racing in 2019? A standard base circle for a .410" lobe in a standard SBC is 1.040". It's very important that you re-calibrate the oil level marking on the dipstick. We have heard of many engines using these rockers that came apart and spilled needle bearings into the engine, only to end up in the oil pump. If you have opted for our dyno-tuned version of this engine, then ring seating will be partially established. Most cars from the 60's and 70's had very low compression, especially when nearly worn out, and this is why the detonation did not destroy the engine. Basically, the initial price difference of $1,248 is worth an additional 4 lb-ft of torque and 62 hp, and you can run on 87-octane fuel. This engine is designed for street/strip use. SBC CHEVY 421 ASSEMBLY SCAT & WISECO +5.5cc DOME TOP 4.155 X 3.875 STROKE SMJ. Gearing could be considerably taller, allowing for much better mileage and low rpm highway cruising. Many have asked why we're able to sell such an engine for such a great price. Our engines include a dipstick. We usually have to change carb. The M-Selectseries oil pump by Melling has several important upgrades compared to the regular Melling M-55 Series. THEY ARE ONEOF THE HIGHEST RATED PISTON BUILDERS IN THE COUNTRY. We are offering four cam choices listed below in this engine. If your new engine has been sitting around for weeks, or possibly months, then you must prime the oil filter. The part number for the Summit/Purolator oil filter we use is 127007 for the short version, and 127004 for the medium length. Howards brand are the only type of pushrod we use in our engines. Cost of this race balancing upgrade is$125.00We have this upgrade featured in our other listings. SBC CHEVY 421 CUBIC INCH COMPLETE DART SHORT BLOCK KIT. We also believe in keeping our profit levels low enough to allow the working man a chance to build his car the way it should be built. We now have three of these in our machine shop. No need for a high rpm stall with this cam, but you would still require a stall in the 2200-2500 rpm range for optimal acceleration. Our choice of rods are the SCAT COMPETITION SERIES rods with ARP-8740 cap screws. These pistons are perfectly designed for use on the street, as well as for medium to upper level drag racing. Should you opt for the dyno tuning package, it does not mean that your engine is ready for full synthetic racing oil. Final gearing would need to be at 373 or numerically higher. Longevity, reliability and low maintenance. These additives are very valuable for high performance engines. He has made buying my 421 Sbc a fun process. "This motor has a Dart racing block," White says. I look forward to my engine being delivered. Excellent of idle power is what to expect from this cam choice. READ THIS LISTING COMPLETELY BEFORE YOU BUY ELSEWHERE! We have noticed some engine builders using low cost generic rods and crankshafts in their engines. Our cam choice 3 or 4 would be much more suitable. Horsepower. Chevy Engine Kit - Chevy Stroker Kit, 400 Small Block, 406, 421, 427, 434, at GREAT Prices, Selection, Customer Service, and Low Shipping Rates All From COAST HIGH PERFORMANCE . When purchasing a flywheel for manual transmission use, be sure to know what tooth count you need. All of these features are essential to a brand new engine when debris levels are highest until the engine is fully broke-in. Torque. When a pushrod flexes in the engine, you lose lift. I'm going to give you the real lowdown on what transmissions I recommend, as well as the ones I would stay away from. Few machine shops have a machine of this accuracy. Custom paint work on engine blocks and oil pans is available as an optional upgrade. Due to their limited production capability and many disagreements about the engine building process and workmanship, we opted to open a full scale machine shop back around 2005. Only use engine oils with high levels of zinc compounds in them when running a mechanical fuel pump. Horsepower rating would drop an additional 10-15 hp below the cam choice 2. 434/710 HP $ 13,950. We are the original premier eBay seller under this name since approximately 2003. Less Carb & Ignition. This engine doesnotcome with oil in it. The warranty on the hydraulic or hybrid roller cam and valve train components is the same as the rest of the engine. The part number for this oil is 0191-012, or you may run the 10w-30 weight Schaeffer Supreme 7000 series semi synthetic oil in cooler weather. SBC 421/427/434 Assemblies SBC LT1 383 Assemblies SBC Short Block Kits Starters Timing Chains & Covers . 1910 Brookside School Ln, Kingsport, TN 37660, USA. UPC: 353414764379: Product Type: Shipped Product: Shipping Cost: $435 . I know this is coming from skip white but he does have some very good cnc machining equipment. 3 inches on each side. The officially licensed body is the ultimate aerodynamic upgrade to the popular Felony platform, whether you are making speed runs on the back roads or drifting in the parking lot. Transmission Recommendations by Skip White. The larger counter weights used on stroker crankshafts are why we recommend reducing the oil capacity in these engines.
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