CP Bullet Pistons for the 351 Cleveland Ford are made on premium 2618-t6 forgings and are balanced to a tolerance of +/- 1 gram. They feature forced pin oilers, contact reduction grooves, accumulator grooves, align with forged side reliefs, chromoly wrist pins with wire locks. Each set includes a 1.5 1.5 3.0 ring set which consists of a steel gas nitrided barrel face top ring a taper hook groove Napier second ring and a 3 piece soft nitrided oil ring that is designed for severe duty applications.
Flat top pistons in a Ford 351 to 408 Cleveland engine will generally provide compression ratios in the 9.0 to 10.5:1 range which makes them a good option for engines with iron or aluminum heads and larger than stock camshafts. 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.
Dish top pistons in a Ford 351 to 408 Cleveland engine will generally provide compression ratios in the 9.0 to 10.0:1 range which makes them a good option for engines with aluminum heads and larger than stock camshafts. 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.