Got me. In fact it is not legal in the CC events. My old motor was sold to a customer of mine and they found out about it and ask the guy to go race in a different class!!!! He has not been back. He even was mad at me thinking that I put a hemi in my car and sold him the motor knowing that the rules didn't alow the low decks. I told him to just make a fake pad at the top of the motor to look like a tall deck but he was already ticked off and does something different now. Jake