Excellent of idle power is what to expect from this cam choice. Then, mount your starter on the engine. Building a supercharged engine with a traditional Roots-style GMC blower is about the quickest way to add power and draw attention to your vehicle at the same time. This is also a very advanced machine that hones the block with afinish unlikeconventional machines. 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. THISENGINE IS BUILT WITH THE BEST AVAILABLE PARTS WITH CONSIDERATION TO KEEPING THE COST OF THIS ENGINE REASONABLE. This maintains the deck's thickness, making it much stronger than a block that has been cut down .025. All parts used have much higher hp ratings than this engine is producing. The part number for this oil is 709-012 for the full case. 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. Our official company name is Skip White Performance. Official Dyno report with this cam, with a few changes. The reduced size cams would allow for a lower idle speed. After this, the engine is shut down to allow us to check the readings on the spark plugs, and for any possible oil leaks. It is best for the choke to open up to its full straight up position as quickly as possible. Many have asked why we're able to sell such an engine for such a great price. The gears are billet steel, and the body is stronger, coated with corrosion-resistant nitrite. Comes with rear seal adapter. The main difference between a 421 and the 383 is that the 421 torque comes in much lower. Keep the engine temp down if possible, but don't worry if you can't get it below 210 on a hot summer day. Our recommendations will change from time to time. Less Carb & Ignition. 1910 Brookside School Ln, Kingsport, TN 37660, USA. SBC 421/427/434 Assemblies; SBC LT1 383 Assemblies; SBC Short Block Kits; Starters; . 4-bolt mains, splayed caps on center three mains. The picture below is a file photo of our Wiseco piston. We offer this engine with selected upgrades. Some of these problems give no indication other than reduced hp numbers. One good telltalein identifying a low quality flexplate is the lack of welding on eachside where the plate mates to the ring gear. Best of all, we can now see what combos generate the best power, with consideration to drivability. We start with a heavy duty pallet with an OSB base, then the engine is put on an engine cradle, (wheels are included) and bolted to the pallet with an engine lift plate installed on the intake and fully shrink wrapped to avoid scuffing the engine when removing the crate and this also protects the engine in the event the outer crate is knocked loose during shipping. 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. We have scrutinized these products in the past and found all of the above problems, and I can tell you there are most likely many more. This enginedoes notinclude a fuel pump. Total timing refers to the reading at 4500 rpm with the vac. They make excellent mid range power. The upper sprocket is made frombillet steeland the lower is induction hardened with nine keyways. 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. They are now shut down. However, we noticed that there was a birds-eyeviewof the timing pointer from the driver side of the engine, so we decided to use these on all of our engines. We have on rare occasion seen a popular combination show hp numbers that were not where they should be. We never stop trying to build a better engine, and we learn from our own experiences and from feedback from our customers. 2ba. The NGK plug is only to be run during very hot weather. We were unable to do the research and development we truly wanted, and this prompted us to make the $105,000 investment. It's very important that you re-calibrate the oil level marking on the dipstick. Cart total: $0. 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. Big block and small block engines will also have a different bolt pattern in most cases. Click here to add upgrades. 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 . All parts are brand new, first line, unblemished,and balanced in house. It is then run for approx. We're highly satisfied with what these new custom cams are doing in our line of street rod engines. The print seal material was partially dissolved allowing great amounts of coolant into the combustion chamber. Big AL at Skip White Performance is a professional, responsive and courteous customer service representative. Use heavy gauge battery cables. We then follow up with multiple low to medium rpm runs to further the break-in process of all the moving parts in the engine. One more benefit is that timing accuracy is very precise and will remain that way. We do offer this engine with a manual flywheel. The EngineLabs Homegrown Horsepower series focuses on engines that are self-built by the EngineLabs faithful readers, and encompass many different styles and types from mild to wild.. Available Add to cart. Cost of this race balancing upgrade is$125.00We have this upgrade featured in our other listings. You must use a rev-limiter on this engine. Priming is not needed when changing oil on a well broken-in warm engine that has been running moments before changing the oil. .005-.010 off the deck surface of the block. The knowledge he has gained over time has allowed him to venture into this business and succeed to a very high level. - MELLINGM-SELECTSERIES OIL PUMP WITH M-SELECT DRIVE ROD. I know this is coming from skip white but he does have some very good cnc machining equipment. We don't have a problem with free enterprise (competition). You can enjoy your engine with occasional spirited driving, as it is well designed for it, but we will not cover damage caused by racing or improper tuning. The cost to do a repair once the engine is installed can be very expensive for both us as the seller and for the customer. 8a-7p EST Friday 8a-3p EST Sat 10a-3p EST (seasonal; call to confirm) 5 star . When a rod bolt fails during high RPM, total engine destruction is usually the result. 6. - COMPALUMINUM ROLLERROCKERS 1.5 OR 1.6 RATIO. Let's discuss what's going to be in the car at the drag races this year, plus some other updates fro. 12.5:1 and up to approx. Actual appearance may vary. Few machine shops have a machine of this accuracy. Many machine shops fail to catch this as the machinery they use does not allow for such accuracy. They will display the AFR engraved logo in the front of heads as seen in the picture below of an engine we were in the process of building. 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. Potential oil leaks are greatly reduced or eliminated by using the exhaust evac system. If You're Looking For Big Block Power In An Affordable Small Block Package, This Is The Motor For You! "1. When using the stock appearing oil pan, we would like to see you add right at 4.75 quartsgrand totalin your engine and oil filter. This is somewhat common and no cause for alarm. Do your research using several sources, and be sure to read between the lines. All of these features are essential to a brand new engine when debris levels are highest until the engine is fully broke-in. We now include the engine test mule run at no additional cost. A rev-limiter will allow you the freedom to drive without having to monitor the tach. This report is with our new line of custom ground Comp Cams. A superlight 3.8" rotating assembly won't leave you enough to even machine your block. 423 - 427 - 434 "Pro Sportsman" SBC / 4.155 Bore X 4.00 Stroke Here you go Small Block Chevy Racing Engines fans! There are many special additives in true race grade oils that are not in conventional oil. This does not mean that the pistons are for racing only. This cool down is considered part of the engine's first heat cycle. Skip White Performance vs. White . Skip to main content. The power and torque numbers down low in the rpm band are what make this such an incredible engine, compared to the smaller engines. Will Replace Any Small Block Chevy, Without Modifications. The ARP-2000 rod bolts also torque at a higher number, and this increased clamping force is also a factor in keeping the big end of the rod stable and true to size. Our machinists each have many years of experience in building racing engines. This engine is designed to have a high level of drivability, or street manners. A mixture of 50/50 or even slightly less antifreeze will cool the engine better than a rich mixture of antifreeze. Race grade oils have higher than normal amounts of the zinc compounds in them, and there are many components in the engine that can make great use of these additives. Call Us: . They will flex in the engine or possibly bend permanently. The ARP-2000 bolts are installed in the rods and this upgrade is only available with the Competition rod upgrade. They may label these parts with a name, but one that is totally unrecognizable in the industry. 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. add anything to racing oil. Neveradd anything to racing oil. To sum it up, there are three important factors to look . Great off idle power. SBC CHEVY 421 ROTATING ASSEMBLY SCAT 4340 CRANK & RODS -16cc Dh. This will allow you to control your timing for optimal performance and ease of starting. He has made buying my 421 Sbc a fun process. Using half a quart less oil can greatly reduce potential oil leaks. We strongly recommend purchasing a fuel to air ratio monitor. Now you know the real story, and we hope this helps with the confusion. The overall average flow numbers on the AFR heads are higher than most any brand of non cnc'd cast aluminum heads on the market of an equal runner size. We offer a full line of this oil in our other listings. The engine is run for two intervals of 15 minutes each, and every possible issue is addressed. They have a much larger capacity for the higher amount of debris developed from the new engine. We deck the block, bore the block, hone the block and . 900-950, and never too far below this unless you are running the smaller engine cam choices. Our engines, rotating assemblies, and cylinder heads are built to very high standards and shipped to our customers in a timely manner. This style pan will still be a Champ pan and will have the windage tray and crank scraper. The Wiseco Racing pistons are rated at 800+hp. The lack of hardness of the rocker body is the real problem. Engines with a full solid roller valvetrain do require an occasional lash adjustment. 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 . In the second year, the warranty will cover all parts minus any labor to remove and install needed parts. This product does not have any reviews yet. Appointments. - SCAT 4340 FORGED CRANKSHAFT, CLEVITE HP BEARINGS. One of the more popular engines SWP builds is its 434 small block Chevy with the All Out package. Horsepower. 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.