Don K of WI .... 427 cu in attached to a 4T65eHD transmission. Engine dyno 625HP !!!!!!!!

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My job here is to explain the pain with the satisfying gain of a Lxx engine on a 4T65eHD automatic transmission.

For now, enjoy the pictures.. I dont have time to sit here and type what all went into this build, but lets say its not a bad way to spend $30k.