Choate Engineering Performance offers high-performance long block 6.7 Cummins diesel engines, built for strength, reliability, and maximum power. These engines use precision-machined parts to provide durability and top performance in tough conditions. Perfect for motorsports, off-road, and heavy-duty use, they deliver the reliability needed for demanding jobs. Boost your vehicle’s performance with a Choate Engineering long block diesel engine—designed to push power and endurance to the limit!