Overview Reviews Product Description Engine - LS Next - Bare Block - 4.125 in Bore - 9.240 Deck - 4-Bolt Mains - 1-Piece Seal - 0.375 in Extended Cylinders - Iron - GM LS-Series - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × Dart LS Iron Block - 9.240/ 4.125 w/Steel Main Caps Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *