The Material
Finest Swedish steel, from the masters in advanced metallurgy, in a special composition alloy, designed for high heat transfer, high flexibility and low wear rates. These are characteristics yielding performance unmatched by any other line of piston rings - American or Foreign.

The Design
DEVES rings and ring sets are based on detailed engineering drawings as well as actual engines. They are manufactured for almost all current American and Foreign engines, with some model coverage as far back as 1928! All DEVES rings are checked for fit by a specially-designed light-beam microscope (if light doesn't get through, neither will oil), and they meet or exceed SAE, DIN or BNA standards.

The Features
* All DEVES rings, compression, scraper, or oil control, are made in the necessary lengths and widths, and in various thickness' to ensure the proper tension against the cylinder walls.
* Expander rings are slotted to prevent any possibility of clogging.
* Oil rings consist of two laminated rings, which sit at the top and bottom of the groove, separated by a spacer, and also contact an expander ring.
* Scraper rings, when called for, use an expander ring under the scraper to provide proper tension.