ROSS Racing Pistons for the Chevrolet LS Series are manufactured on advanced 2618-t6 forgings featuring forged side reliefs with internal and external bracing. 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 and double forced pin oilers with oil distribution grooves, as well as optional gas ports. Rings, wire locks, chamfered wrist pins, and lock removal indents are included.
Flat top pistons in a Chevrolet LS Series engine will generally provide compression ratios in the 10.0 to 12.0:1 range which makes them a good option for engines with aluminum heads and larger than stock camshafts.
Dish top pistons in a Chevrolet LS Series engine will generally provide compression ratios in the 10.2:1 range which makes them a good option for engines with aluminum heads and larger than stock camshafts.
