6.6L L8T Gen V LT Cast Iron Block, Fully Machined 388 LS Engine T4 turbo blankets

T4 turbo blankets

Final Wash and Assembly

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000 psi tensile-strength rating

✅ Reduced Turbo Lag – More heat = more energy = quicker response

6.6L L8T Gen V LT Cast Iron Block, Fully Machined 388 LS Engine T4 turbo blanketsBoostline Performance proudly introduces our premium line of machined 6. 6L L8T GM engine blocks precision engineered for serious performance builders who demand reliability under extreme conditions. Perfect for the customer who wants to build their own engine and needs a good foundation to start with. Each block starts as a seasoned Genuine GM L8T Engine Block then undergoes our proprietary machining process on state of the art Rottler CNC equipment.