But hey, for the same money invested in the rebuild, the 360 gives you 42+ more cubic inches, meaning at aleast 42 more HP and 42 more ft/lbs of torque. The 360 also has bigger port heads which will help you move the air required to make 400+ hp. For a given level of performance the 360 will develop the same power 500-1000 RPM lower. High RPM motors can get spendy.