<page_title> Ford Super Duty engine </page_title> <section_title> Design </section_title> <table> <cell> SD-477 <col_header> Name </col_header> </cell> <cell> 4 1⁄2 in × 3 3⁄4 in (114.3 mm × 95.3 mm) <col_header> Bore x stroke </col_header> </cell> <cell> SD-534 <col_header> Name </col_header> </cell> <cell> 4 1⁄2 in × 4.2 in (114.3 mm × 106.7 mm) <col_header> Bore x stroke </col_header> </cell> </table>
The 477 has a 4 ¹⁄₂ in (114.3 mm) bore; the 534 has a stroke of 4.2 in (106.7 mm).