Our Boat Brands GM Marine / Engine General 1.5L I4 LSD 2.8L I4 LWN 3.0L I6 LM2 4.3L V6 LV1 5.3L V8 L84 6.0L V8 LC8 6.2L V8 L87 6.2L V8 LT4 6.6L V8 L5P 6.6L V8 L8T 7.4L V8 LSX 454 8.0L V8 LFI