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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
race-proven construction
As you know the square port head opens up the power potential of the LS considerably
Removed from new engines
Disclaimer: Due to the fabric properties
1x 1D per Gear Table
Big Bore, Sleeved, Aluminum LS Engine Block 388 LS Engine race-proven constructionBoostline 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
