I recently purchased the GMC Truck-Sierra Denali used engine from this store, and I must say, I'm thoroughly impressed. The engine was in excellent condition, almost like new. It has been performing flawlessly in my truck with no issues whatsoever. The power and efficiency are just as I expected from a Denali engine. Also, the customer service was top-notch, providing me with all the necessary information and assistance during the purchase. Highly recommend for anyone in need of a reliable used engine!