Few machine shops ever get to master-wd pricing. Thisengine can be installed in medium to heavier cars without killing acceleration, having todeepen the final gear, and needinga huge stall converter. The M-Selectseries oil pump by Melling has several important upgrades compared to the regular Melling M-55 Series. 500 miles, and be sure to warm the engine up to complete operating temp before going above 2500 rpm. If it was me I would stick in the lower 400 inch range. Around this time we changed our company name to, Skip White Performance to make clear distinction between the two of us. We now include the engine test mule run at no additional cost. The racing filter is not to be used as the first filter on a brand new engine. Proper carb jetting is also a must. This engine doesnotcome with oil in it. and torque converter are not connected to it. The standard balance job that is included with this assembly at no extra charge is certainly sufficient. 2ba. In the second year, the warranty will cover all parts minus any labor to remove and install needed parts. We have this upgrade featured in our other listings. We do our own balancing with our new state of the art CWT 5500 Series balancers. Many drag strips require this on engines producing high horse power levels. Detonation damage is evident upon removal of the cyl. 4.155" max bore (siamesed cylinder bores) Extra-smooth gasket surfaces. Unforeseen problems may still occur, but they are rare. Lebanon , NJ . - HOWARDS ROLLER CAM ANDTIE BAR STREET STRIP ROLLER LIFTERS. One thing we have noticed is that the de-tuned engines with different cam and intake combos certainly do have less top end horse power than expected, but the torque increase in the low rpm range is much greater than in the higher horsepower setup. oil pan. This very critical work is done to exacting specs and with great care. If your engine is equipped with a choke, we recommend setting it on the mild/lean side. He continued to operate the machine shop and build engines for us while we continued selling online under the eBay user ID of skipwhite and the eBay store name of whiteperformance1. Gearing could be considerably taller, allowing for much better mileage and low rpm highway cruising. The tooth count must be correct. Big block and small block engines will also have a different bolt pattern in most cases. 8a-7p EST Friday 8a-3p EST Sat 10a-3p EST (seasonal; call to confirm) 5 star rating 272,950 + reviews! This led to a failure of the high quality Felpro intake gaskets. The part number for this oil is 709-012 for the full case. We would not use them in an engine under any circumstances. 69 Nova 410" small block-Driven to track 6.39 E.T./105 MPH--6.11/112.89 w/N2O The photos above and below are file photos. These rods are made exclusively by Scat, and have nothing to do with the ProComp company. If you are not satisfied with the cam or intake you have chosen, we will exchange any of these items for up to 60 days. The rev limiter should be set to cut off at its peak horsepower or less if you choose, and this should allow many years of service without a problem. This is a 2016 model and highly advanced compared to the much older models many shops have. We strongly recommend using a crankcase ventilation system to pull gases from the crankcase. If you do think you will be driving significant numbers of miles, we strongly recommend staying with our hydraulic roller cam package or the hybrid valve train setup. Official Dyno Report with this cam, NKB heads, dual plane intake, Quick Fuel SQ 750 carb, and MSD distributor. The de-tuned version of this engine will also allow you to set the car up closer to stock and increase drivability to a very high degree. When purchasing a flywheel for manual transmission use, be sure to know what tooth count you need. Cost of the full dyno tune option for carbureted engines is. One of the more popular engines SWP builds is its 434 small block Chevy with the All Out package. This SFI flexplate is made in the USA and will resist cracking and warpage to a very high degree. Read the specscarefully. It's very important that you re-calibrate the oil level marking on the dipstick. Only use engine oils with high levels of zinc compounds in them when running a mechanical fuel pump. Skip to main content. Not knowing is understandable, but failing to educate yourself on the do's anddon'tsis asking for problems. If you do a search on the Scat Pro-Comp rods, you will find a vast amount of info on many car forums. There is no way for us to properly shim the starter(should it be needed)while the torque converter and transmission are not installed. The higher capacity 7 quart oil pan is an optional upgrade on some of our engines. 421 That skip white sure knowes everybodys bussiness, I would go with him, skip white never does anything wrong, . 4.155 PISTONS 2PC RMS-350 MAINS, SBC CHEVY 421 ASSEMBLY SCAT & WISECO FLAT TOP 4.155 X 3.875 STROKE SMJ, SBC CHEVY 427 ASSEMBLY SCAT & WISECO -8cc Dh. This will allow you to control your timing for optimal performance and ease of starting. 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. TURN KEY ENGINE. Nothing short of pure magic. Pardon the mess. We actually have few, if any, problems with the regular ARP-8740 bolts, but those who run hard always upgrade to the ARP-2000 rod bolts. The transmission shaft centers up to the torque converter, and this causes the flexplate to further change shape slightly. Our eBay user id is:skipwhite, and our eBay store name is whiteperformance1. They may label these parts with a name, but one that is totally unrecognizable in the industry. The NGK plug is only to be run during very hot weather. Call Us: . Race grade plugs are fine as they have a few features that are desirable for certain types of driving. When engines are dyno tuned, the chances of you having a problem are near non-existent. If your car is in the heavy weight range, and/or geared on the steep side and you want much better streetability, then this is the correct cam choice. We only use the swedged one pc. The Scat crankshafts are the best wayto build a strong bottom end for, street rods, dirt and circle track racing, and drag strip racing. The dyno has a computer controlled break-in mode that we use before doing any dyno testing for power output. Re: Any proven combo's out there for a 406-421 sbc. Be sure to have a high amperage battery and high quality starter. The part number for this oil is 709-012 for the full case. Other items seen in these pictures may not represent your actual engine. These starters have proven to be highly reliable, and offer excellent header clearance. On our bbc engines, we actually leave the piston about .003 to .005 in the hole to allow for possible piston rock. It's very important that you re-calibrate the oil level marking on the dipstick. Hardcore Horsepower Builds a Streetable 820HP Blown Small-Block. 20 minutes under a simulated load at around 3k rpm to promote initial ring seating. Most of these upgrades are low in cost considering the benefits they offer. He runs Steve Schmidt Racing Engines in Indianapolis, a 28,000 sq.-ft. engine shop capable of producing 700 engines a year, with two full machine shops and a dyno. Setting ignition timing is also considered tuning. Our short blocks are in high demand among racers of all types worldwide. CHEVY SBC 421 STAGE 4.0 DART BLOCK, AFR HEADS, CRATE MOTOR 550 hp BASE. 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. Available More tuning recommendations. There is no inherent weakness in the 421 engine when using a Dart high performance block. Do not overfill with engine oil. Our engines are now equipped with a billet oil filter adapter that requires the use of an oil filter that has its own by-pass valve in it, unless you are using a true racing filter. The pictures above and below are file photos to display the studded mini nuts. They are now shut down. Our official company name is Skip White Performance. Use heavy gauge battery cables. Their google reviews will also back up what were saying. Extends engine life and frees up a few more horse power. The satin covers below are by far the most popular. or ext bal. 1/4th of a quart. 3349 E. Stone Dr. Kingsport, TN 37660. All parts used have much higher hp ratings than this engine is producing. However, you can have much more serious issues by running plugs with high temp ranges. As of this notice, (10/20/2021) the great pretenders have an "F" rating on bbb with a fraud alert. 3349 E. Stone Dr. Kingsport, TN 37660. The value of the engine cradle and lift plate is approx. We have had a vast amount of experience with the Dehphi hydraulic roller lifters. Doing this may reduce the chance of oil leaks and reduce oil temps. Do not worry about initial timing, as it will be determined by the total timing. The anti-foaming agents in race grade oils are much better than what you would find in conventional motor oil. - SCATCOMPETITION RODS WITH ARP8740 7/16 CAP SCREWS. Appointments. BALANCED ON OUR CWT BALANCER TO BELOW 2 GRAMS. The new Dart Super High Performance block would be indestructible if built to the power rating of this engine. Should warranty issues arise, proof of the rev limiter use will be required. If your new engine has been sitting around for weeks, or possibly months, then you must prime the oil filter. This is somewhat common and no cause for alarm. We have excellent sources for low cost shipping anywhere in the world. Definitely notthere is no connection between the two companies. We are offering four cam choices listed below in this engine. We suggest joining a few good car forums, as they have a wealth of great information. We now have three of these in our machine shop. Every car from the factory has this feature. This is why race engines are dynoed:to put a good number of passes on the engine under heavy load, as this will partially seat the rings very quickly, making the engine somewhat ready for racing. Let's discuss what's going to be in the car at the drag races this year, plus some other updates fro. For tech support, please use the"Ask A Question or Contact" tab. Thisengine will accelerate a 3600 lb or heavier car much better than the 383 or 350. Less Carb & Ignition. If this engine would have had the 1.6 rockers like the one above, it's fair to say the numbers would have been even higher. Ohio Crankshaft 4340 3.400 forged crankshaft. When we're finished decking the block, it is within approx. After this, the engine is shut down to allow us to check the readings on the spark plugs, and for any possible oil leaks. The difference in quality is dramatic compared to the common low-cost timing set. Steve Schmidt is a busy guy. You may have noticed other sellers using a similar name offering similar products. Running mid grade fuel or even regular grade fuel becomes a possibility with the reduced compression ratio. 4-bolt mains, splayed caps on center three mains. This is a generic term, referring to their ability to be used in high performance applications as well as for street rod use. The 1,565 sq. .005-.010 off the deck surface of the block. 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. Part #: PS4272CT Cam choice #4 would be an excellent choice for those with a heavy car or truck. The pins and keepers that hold the parts together are often of poor quality and improperly installed. We do offer this engine with a manual flywheel. You have a choice of single or dual plane intake. A slight loss of power is also an issue with plugs that are too cold, as well as possible difficulty in starting. This timing set will likely last for the life of the engine. We have noticed some engine builders using low cost generic rods and crankshafts in their engines. Ohio Crank H5400 H-beam rods w/ARP 2000 bolts. The heads are Dart pro 1 230 runners with all comp cams springs and 10 degree locks and retainers also manley valves with 5 angled valve job done on a cnc head shop. This is what you will find in most solid roller engines, as they have very high spring rates, and create an enormous load on the chain and gears, compared to non solid roller setups. Champ oil pan, it has kickouts that swell outward approx. Our eBay user id is:skipwhite, and our eBay store name is whiteperformance1. This rate only applies to delivery to a business with the capability to unload the engine without the use of a lift gate. This oil has exactly what is needed to protect a high performance engine. Cost of the full dyno tune option for engines with EFI fuel systems will be$100more. This may alter your initial starter adjustment, and if it does, you may need to do a light adjustment once the transmission is installed. The racing filters do not require the by-pass valve in them due to the fact they have such a loose media.