The classic Mopar tuner, Mr. Norm, has revealed a new image gallery for his 426 Hemi Challenger and Cuda Convertibles that were unveiled back in the middle of July.

Gallery: Mr. Norm 426 Hemi Challenger and Cuda Convertible
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For the two modern day muscle cars, the stock 6.1 Liter Hemi V8 has been modified with a forged crank shaft, forged rods and pistons to reinforce the reciprocating assembly that work in harmony to increase engine displacement to a full 7.0 Liters, or the magic Mopar number of 426, that is cubic inches of course. Sitting atop the freshly reinforced Hemi is Mr. Norm’s Signature Kenne Bell twin screw supercharger that pumps enough air into the hemispherical combustion chambers to generate a ground pounding 725 HP. Not to mention that now you can hear the large blown V8 rumble even better without a roof to block the sonorous whine.

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