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I got to ride in a de-stroked 318. It used the 273 crank. 305 CI like the Real Trans Am racers. I have an old mopar engine book with the build specifics. This motor was in a 69 dart. It would rev way up fast and blast off the line. This would help keep it in the winning position. I ways wanted to build one.



273 cranks had the same 3.31" stroke and journal diameters as 318's and 340's. The Trans Am cranks had something like a 2.96" stroke.

One problem with a stroked 273 is that despite the extra cubic inches, the bore size would limit valve size and breathing. I would think that it would make a lot more torque.



torque rules for for fun factor

the whole point of a stroker..no?

I know my uncle had a stock hipo 273 with a .500 lift solid cam that was a beast for a 273 with 4-speed and 3.91sg and it would buzz real high rpms.

I am thinking a 330 or 349 would be real cool on the street as a daily driver and the 349 would not need the bore notching and could use 360 heads