I have been asked to help restore a 1967 Mustang GT 390 V8, like the one in the movie Bullet. The car is very rough, but is an original 390 GT car. I have received the drive train for a complete overhaul and refit. While I was in the process of tearing down the engine for a inspection I discovered that the engine is really a 428 block with early 390 heads. Here is the problem; the customer wants an original engine to this car which he does not have but I do have a 67 390 GT engine.
Should I swap the engines, my 390 for his 428, and not tell him anything. Or should I tell him that his engine is not original but I could locate one for him for a small fee plus the cost of the engine.
If I choose the later I will take the value of the 428 engine off the cost of the repairs.
Should I swap the engines, my 390 for his 428, and not tell him anything. Or should I tell him that his engine is not original but I could locate one for him for a small fee plus the cost of the engine.
If I choose the later I will take the value of the 428 engine off the cost of the repairs.