Probe Industries Professional Race Series Forged Pistons for the Ford 351 Cleveland and Strokers are manufactured on design specific, advanced 2618-t6 forgings. Most feature double spiral locks (or wire locks in some applications), forced pin oiling with oil distribution grooves, and lock removal indentations. They also feature gas accumulator grooves in the second land. All are suitable for power adder applications. 5115 steel, .150 wall wrist pins, locks, and oil rail supports (if required) are included.
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.
Dome top pistons in a Ford 351 to 428 Cleveland engine will generally provide compression ratios in the 13.0:1 range which makes them a good option for competition engines. 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.
