We Make it Simple. If you need to return your item for any reason please do so within 30 Days from delivery date. Item Description:M139 QUATTROPORTE 4.2L ENGINE (FOR F1 MANUAL TRANSMISSION)See this engine running – https://youtu.be/nD1I5uq2sME PLEASE NOTE: This item will be shipped FREIGHT to a business/commercial address only. Contact us: If you need to contact us regarding questions about an item, please use Contact Seller tab. Shipping to AK, HI, PR, will be extra. Please contact us for sipping quotes. If you have received an item not as described, please do not hesitate to let us know as we will do our best to solve the problem and satisfy the situation.