Chevrolet Performance 19417354 - LSX Bowtie Tall Deck Block

The LSX Tall Deck Bowtie Block is hands down the strongest LS block you will find for the money. Tried and true north of 2000 horsepower, you'll have trouble finding the limits of the LSX block. For power potential, it is based primarily on the LS7 block's architecture, but for power handling it has been cast in iron and employs both thicker deck and bores, as well as employing 6-bolt cylinder head provisions for the maximum clamping capabilities on the cylinder heads. The LSX Tall Deck is shipped with a 9.720" semi-finished deck height. This tall deck height is the proven choice for building large cubic inch LS based engines.