Impressive numbers. One thing I do not understand: The streetHemi with all the good parts inside made 490 in torque, the 440 magnum had 480, some GM 455 engines had around 500, this was SAE in the 70's (Which were known to be optimistic). Then this example is 20% more in dynoed torque, at almost the same swept volume and a tad more CR. Can it be correct? What have I missed? Are the Stealths like supercharging an engine? Do the 451 light weight pistons matter at 2000 rpms? Please explain, I am really interested in how this can be done, as a 523 stroker I built some years ago with 11,7:1, 590 cam, M1 intake + 1050, and ported St6 heads barely made 600 lbsft. I am building a 400 stroker for my driver with 6 speed manual transmission, and will try to aim for some mileage as our gas is on the world's cost peak.....
Thanks,
Oyvind Mopar