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It's just the way the equation works out:
hp = torque (lb-ft) x rpm / 5252
If an engine produces peak torque below 5252 rpm, the peak hp will be lower than the torque in lb-ft. e.g. most diesels.
If it produces peak torque at or around 5252 rpm, the peak hp will be close to the torque number. Most engines are like this.
If it produces peak torque above 5252 rpm, the peak hp will be higher than the torque number. Usually high-revving, small displacement NA sports cars are like this.
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