<page_title> Renault Billancourt engine </page_title> <section_title> Different cylinder capacity </section_title> <table> <cell> 54.5 mm (2.15 in) <col_header> 662-2 - 680 </col_header> </cell> <cell> 55 mm (2.17 in) <col_header> 662-1 </col_header> </cell> <cell> 80 mm (3.15 in) <col_header> 690 </col_header> <col_header> 662-2 - 680 </col_header> <col_header> 662-1 </col_header> <col_header> 839 </col_header> <col_header> B1B - 670 - 800 - Ventoux1093 </col_header> </cell> </table>
The size of the bore was reduced from 55 to 54.5 mm (2.17 to 2.15 in), while the stroke remained unchanged.