Drove this in my Camaro for around 10k miles, never had any problems with it. Pulled the valve covers and oil pan. Very clean, comes with eldebrock carb, hei distributor, manifolds and a full dual exhaust (2") water pump, p/s pump, even have an old torker intake ill let go with it. Numbers on this one show it to be from a 64/65 nova or chevelle. 2 bolt main, it does have the forged crank. This is a good drop it in and run motor, just need it out of my garage.