Big Bore, Sleeved, Aluminum LT Engine Block Shopify Collective 87mm Gen 4 Drive by

87mm Gen 4 Drive by Wire Throttle Body

Maximum Air Flow

7 long block is the logical next step up from the base 5

Our Street-Strip Series 454 short block has all the ingredients to pack the punch you're after

Each block starts with a seasoned GM Gen 3 or 4 Iron 6

Big Bore, Sleeved, Aluminum LT Engine Block Shopify Collective 87mm Gen 4 Drive byBoostline 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 engine block, 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 engine blocks on our Rottler CNC