Ok I have a 4.2 off my 07 with very low miles. Mostly raced the car. Here is what is included. I would recommend a built bottom end and dedicated fuel system. 4.2 is polished, mono blade throttle body, braided coolant lines for blower, billet pro shop aux idler kit, JLT carbon fiber big air kit, 10 belts, 4 pulleys, 3"- 3 1/2"- 3 3/4"- 4" .low vacuum bypass, custom billet fuel rails , I will also include a master cylinder off my 07. I have all the instructions also, I purchased it new. Awesome blower I have been 8.19 at 165 with this set up. Please contact me directly at 717-873-2244 asking 6K plus shipping. I accept pay pal with 3%