They are using the LSX and if u dont believe me I will get a pm or a message from w2w on tech in the private sponsors forum which I have excess to:booty: ). Also w2w is also know as having the worlds fastest LSX motor in Mike Morans 98 camaro. W2W is no joke and has built some badass rides. Here is the link to the mustang form there site. read it book nerd and u will see what there doing. http://www.w2wpowertrain.com/t-heretic-2.aspx