I have had a 418 and a 408 stroker and both made the same power and torque and neither ever gave me any trouble. I never had a 427 stroker as I figured the 418 was pushing it the way I drove it. The 408 is just as strong and when built with good parts will take anything the others will. Just be sure to filter out any BBs that may get sucked into the intake as you pass them.
Ron
