ROSS Racing Pistons for the FE Series Ford based engines are manufactured on advanced 2618-t6 forgings. Most feature double spiral locks (or wire locks in some applications), forced pin oilers with oil distribution grooves, and lock removal indentations. They also feature gas accumulator grooves in the second land, as well as optional gas ports.
Flat top pistons in an FE Series Ford engine will generally provide compression ratios in the 10.5:1 to 12.0:1 depending on engine size and cylinder head range which makes them a good option for engines with competition applications. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to well over .600 valve lift. The top ring is spec'ed at .280 down to clear relieved blocks.
Dome top pistons in a FE Series Ford engine will generally provide compression ratios in the 10.0:1 to 11.0:1, depending on engine size and cylinder heads, range which makes them a good option for engines with competition applications. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to well over .600 valve lift. The top ring is spec'ed at .280 down to clear relieved blocks.
Dome top pistons in a FE Series Ford engine will generally provide compression ratios in the 12.5:1 to 13.7:1, depending on engine size and cylinder heads, range which makes them a good option for engines with competition applications. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to well over .600 valve lift. The top ring is spec'ed at .280 down to clear relieved blocks.
