In case you have no core we will get you a Pettit built OTS engine appropriate for your door. We have a new Mazda 13B REW engine and rebuild it to Pettit specs in advance of shipping and delivery it to you. Drew Blankenship Drew Blankenship is a previous Porsche https://13b-turbo-2-engine-for-sa05791.gynoblog.com/29294408/5-simple-statements-about-13b-turbo-engine-for-sale-explained