LME LSX 427' 1800HP 427 Lsx Short Block
High Compression LS7 Engine Build - 13.0:1 Aluminum LS blocks are 100 lbs lighter and easier to cool than an iron block. The weight reduction improves braking, handling Ever Wonder the Weight Difference Between an Aluminum LS Block, a Cast Iron LS block and a SBC? Dart 427ci with Frankenstein boost, monster heads on the sim engine run stand Dart GM LS Block Comparison ...