This is a numbers-matching motor .030 over. Fresh with a 4-speed, 3:23 rear end. I have owned the car for 22 years and am selling it because I have a new project car. This Duster has headers, 4-piston SSBC brakes, 2 1/2" exhaust with Flowmaster mufflers. The car has some subtle changes, but I will include the original exhaust manifolds, radio and front brakes. This is a VERY GOOD running and driving car!