I am selling a brand new in the box Magnum .52 4stroke, this is NOT the blue head version that they are selling now. This is a fantastic engine to power any .40 size sport airplane! Shipping is 10.00 flat rate to anywhere in the US. Payments are check, paypal, or Money order. Trades are accepted so lets see what you have, please don't ask what I am looking for.. just give it a shot with what you have! Also I will be putting out other ads so keep your eyes out if you want to make a combo.. thank you for your time. Tyler!