it is a full c5r motor. including block and heads (god there is big money in the heads). talking 5 figures for the heads alone. it is a destroked motor producing 377" because the c5r chamber is around 44cc! to produce the lower compression, they destroked the motor. oliver rods and je piston with lunati crank is inside. F1R blower with 150 shot of NX i believe is the general details. truely an amazing car. and he has more money in his tow rig by FAR! lol ARE doesnt run a complete cr5 head and block.