Please feel free to use our compression ratio calculator to help you decide on the piston specifications you want. Click here to go direct to our Compression Ratio Calculator or visit our Race Math Page.
The KB Performance Pistons listed here are listed from the smallest cubic inch displacement engine to the largest.The pistons are then listed first by engine displacement (360,383,400,etc.), connecting rod length, and finally by compression ratio. Stroker and non-stroked applications are listed as the final cubic inch displacement (i.e., a 408 stroker piston will not be in the 340 section).
If you need assistance with piston selection, please do not hesitate to contact us by using our online chat system, telephone or contact form.
SPECIFICATIONS |
PRICE PART NO. RING PACK |
NOTES: | PHOTO EFFECTIVE HEAD VOL. |
|
---|---|---|---|---|
C.I.D. |
383 |
KB162
|
6.358"ROD |
|
392 HemiKB 392 Hemi pistons are on a separate page on our website. To view them please click here: KB 392 Pistons |
||||
C.I.D. |
400 |
KB240
|
6.358"ROD |
|
SMALL BLOCK (340-360)C.I.D. |
408 |
KB356*
|
6.123"ROD |
|
C.I.D. |
426 |
KB210*
|
6.860"ROD |
|
C.I.D. |
426 |
KB211
|
6.860"ROD |
|
C.I.D. |
440 |
KB184*
|
6.768"ROD |
Check piston
dome to |
Part numbers with an asterisk * are not legal for sale or use on pollution controlled motor vehicles.
The KB catalog has been designed to help the public comply with State and Federal emission
regulations when KB pistons are used in street applications. A piston listing with the
term "O.E. Replacement" means that the piston has the same functional dimensions
as the original equipment manufacturer's piston. When this piston is used with components
dimensionally the same as the O.E. components, the emission level will remain unchanged.
This catalog shows the term "O.E. Replacement" not only for a piston listing
but, also, for the "years" within that listing. This is important from an
emission standpoint because an O.E. manufacturer may have changed piston design for
certain years for the same engine designation. A piston listing designated with an
*asterisk means that there is no original equipment equivalent piston for the application
indicated, and is not legal for sale or use on pollution controlled motor vehicles. It is
suggested that State and Federal emission regulations be checked.
When ordering single replacement pistons, you must specify part number,left or right exhaust valve, oversize and a piston and pin weight in grams.
All weights and compression ratios are based on a .030" oversize piston for that listing. The compression ratios in each listing are calculated using a combined deck clearance and gasket thickness of .040", and bore diameter of .030" oversize, unless otherwise noted in the listing under the notes.
KB Performance Pistons are sold without warranty or guarantee of any kind. United Engine and Machine Company shall not, under any circumstances, be liable for any special, incidental or consequential damages of any kind from the purchase, installation, or use of these pistons
.