If you do not find a link to the Mopar pistons you need in the main catalog index below, please check this link. This link is to an older Mopar spec page on our site that we are replacing with new pages as time allows. KB Pistons Catalog Index AMC AMERICAN MOTORS CORPORATION This 383ci small block Chevy is being built to run on 87 octane, which with aluminum heads will limit our safe compression ratio to 9.7:1. KB Claimer Pistons Catalog Index Chevrolet We hope to achieve a safe compression ratio of around 13:1 running on either E-85 or 93 octane with an additive. Click here to goĭirect to our Compression Ration Calculator or visit our Race Math Page. You decide on the piston specifications you want. Report Comment : 383 Small - Block File Comment : 383 Small - block with flat - top pistons. Please feel free to use our compression ratio calculator to help Compression Ratio Calculator ( C ) 1998 Performance Trends Inc. Top right border of this page, and we will be happy to provide info and pricing on any KB While 9:1 is a safe number, maximizing compression is a great way to increase power. This is in order for the engine to safely work with pump gas, which for much of the country, is limited to 91-octane. If you do not see the part you want listed, please e-mail us using the link in the The standard recommendation for street engines running on pump gas has always been to shoot for a 9.0:1 to perhaps 9.5:1 compression ratio. Why it matters: A 355 engine with a 9:1 static CR using a 252 cam (110 LSA, 106 ICL) has an intake closing point of 52º ABDC and produces a running CR (DCR) of 7.93. We are constantly adding additional information to our 99Based on the DOHC 6G72, this engine has a reduced compression ratio (8:1) to accommodate the boost pressure from twin turbochargers and twin air-to-air. or measuring with a degree wheel, it is impossible to know. These parts are available as sets with,or without piston rings and all include wrist pins, pin fitting, locks and installation instructions.Ĭlick on the links below to go directly to the section of the KB These piston sets are excellent choices for upgrading your stock engine, building a high performance engine, or for most any application where you want install a better than stock piston, without the higher cost of forged models. It will also allow you to calculate the engine displacement in Liters and Cubic Inches. WeĪre an authorized dealer for the entire UEM product line which includes KB Pistons, Icon Pistons, and Silvolite pistons. This simple tool allows you to calculate the STATIC compression ratio of an engine. Originally, there were some forged piston part numbers in the KB line, but all forged pistons have been moved to the new Icon line up. This is due to the number of blocks available for the 7. Regarding parts availability, the 454 engine has the most availability of parts in comparison to the other engine sizes. Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want. What Is The Best Big Block Chevy Engine The answer to this question depends on the application and the BBC engine specs you need. In addition to KB Hypereutectic pistons, UEM now offers a line of forged pistons also which are marketed under the brand name of Icon. Instructions: Enter a value in the un-shaded. The KB hypereutectic pistons offer a great compromise of high performance with reasonable prices. These include many of the older muscle car engines, as well as current models. Part numbers for many different engine combinations, including popular stroker engine packages. United Engine & Machine Company's line of KB Performance Pistons are hypereutectic type pistons which are an ideal choice of piston for many engine rebuilt project. Your Marvel Mystery Oil and a six pack and get ready to party.KB Pistons High Performance Keith Black Hypereutectic Pistons Light, non-nasty grease, your handy dandy plexiglass or lexan sheet, Enter a positive number for aĭished or dimpled piston. EnterĪ negative number for a domed piston. When the spark plug ignites this compressed fuel/air charge, the resulting combustion causes an expansion of the charge which forces the piston down. This info will be given in ccs by the piston manufacturer. Using an example with the piston down in the bore by 0.017' would look like this. do it yourself or call the piston manufacturer. If an engine has a 9:1 compression ratio, the fuel/air charge will be compressed to 1/9th of its original volume. This is the volume between the crown of the piston and the deck of the block with the piston at top dead center. At TDC the piston will "rock" so be careful in On 113/135" ORCA motors it is 0.00 because they use metal seals and no head gaskets.ĭistance between the flat top surface of the piston (not the top of aĭome or the bottom of a valve relief) and the top of the cylinder.Įnter a negative number if the piston's flat surface sticks up past the It's usually 0.040", but not always.for example, on K1200 BMWs it is 0.070".
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |