Hardy,

I didnt have the engine built and the guy who did doesn't remember too well. I do believe that it's freshly built though, because it runs flawlessly and quietly (leaky dual exhausts notwithstanding). I think if it had been driven in that bus for any length of time it would sound pretty dogged. Honestly this whole post could have been in vain because he may be wrong about it being a 305. It never made sense to me, I thought maybe he was dyslexic or something, but he sticks to his story so until I find the casting numbers or take the heads off I wont know. Horsepower, with the headers and the duals, I think could maybe be 180. It's only got a 1 barrel carb on it but it's got okay balls for a small block in a 13,000 lb. bus. I suppose if it's rebuilt it might not have a soft stock chevy cam, but who knows. It's a mystery motor, but it seems healthy. Put a bigger carb on it and tune it up and I'll bet it would run for ya in a smaller vehicle. I have to find a suitable replacement before I sell it...anyone got a 366 or 426 Tallblock truck engine in decent running ocndition?