CP Bullet Pistons for Chrysler Late Model Hemi engines 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 as well as forged side reliefs. 5100 steel wrist pins, with wire locks are standard. 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 Vapier second ring. and a 3 piece soft nitrided oil ring that is designed for severe duty applications.
Flat top pistons in a Chrysler Late Model Hemi engine will generally provide compression ratios in the 9.0 to 10.5:1 range which makes them a good option for boosted 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.
Dish top pistons in a Chrysler Late Model Hemi engine will generally provide compression ratios in the 9.0 to 11.0:1 range which makes them a good option for boosted, or naturally aspirated, 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 Chrysler Late Model Hemi engine will generally provide compression ratios in the 9.5 to 11.0:1 range which makes them a good option for boosted, or naturally aspirated, 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.
