Big Block Kenworth T660 Schwalbe Stretch Exists! This 98K-Mile Schwalbe Stretch Is A Unicorn!

The 2011 Kenworth T660 Schwalbe Stretch is an ultra-rare, heavy-duty custom conversion hauler. Built on a commercial-grade Kenworth semi-truck platform, these custom units are engineered for serious towing capacity—such as large horse trailers, multi-car race stackers, and luxury 5th-wheel RVs—while offering the interior comfort and luxury of a high-end custom mega-cab pickup. Key Specifications & Build Highlights Model & Chassis: 2011 Kenworth T660 with an authorized Schwalbe Stretch Conversion cab. Engine: Cummins ISM (or upgraded/tuned variants) 10.8L/11L "Big Block" diesel engine. Factory-rated around 425 HP (with many enthusiast builds tuned up to 500 HP and massive torque outputs like 1,675 to 1,850 ft-lbs). Transmission: Eaton Fuller 10-speed automatic (or automated manual) transmission designed for seamless heavy towing and effortless cruising. #KenworthT660#SchwalbeStretch#BigBlockTruck#KenworthTrucks#CustomHauler#MediumDutyTruck#SemiHauler#TruckLife#CumminsPower#CumminsISM#BigBlockDiesel#DieselPower#LowMiles#RareTrucks#UniqueTrucks#CustomTrucks#OverTheRoad#HeavyDuty