The engine is a 292 late model 6. The position of the oil filter and the "tall" side covers is what gives it away. I have one in my '56 2 door sedan and it surprises a lot of people. It is especially good in the 1/8 mile but doesn't do that bad in the 1/4. It's a full size, complete 3400lb car and will run high 13's at just under 100mph. Not bad for a street driven car, that heavy with that small motor. Mine just has a little head work, a cam, headers and a four barrel.