Big Bore, Sleeved, Aluminum LS Engine Block 388 LS Engine 1x 1D per Gear Table

1x 1D per Gear Table

Cylinder Heads of your choice

As you know the square port head opens up the power potential of the LS considerably

and exceptional value

Big Bore, Sleeved, Aluminum LS Engine Block 388 LS Engine 1x 1D per Gear TableBoostline Performance proudly introduces our premium line of aluminum GM engine blocks precision engineered for serious performance builders who demand reliability under extreme conditions. Each block starts with a seasoned GM Gen 4 aluminum foundation, then undergoes our proprietary machining process on state of the art Rottler CNC equipment. These blocks get fully machined for Darton sleeves at our facility using seasoned GM Gen 4 aluminum blocks on