Big block engines, such as the 427 Police Interceptor and the 428 Cobra Jet, weigh more than the average small block. Plus, when pushed to the top of their power and torque, they can cause severe twisting on the motor mounts. This has been known to bend the frame and snap the axles of cars that have not been upgraded. Shelby and his team thought of this, which is why the suspension was upgraded, the drivetrain components were secured better, and the axles distributed the torque more effectively with racing gears. To top it off, the team also upgraded the brakes to allow for the increased stopping power needed to slow down the beast with the big block.
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