The LSX Bowtie engine block is the latest design from the Chevrolet Performance engineering team. This durable iron-block casting is based primarily on GM’s production LS7 block, but it is designed with more material in critical areas – including a thicker deck and cylinder bores – to support displacement of 454 cubic inches or more. Unique six-bolt cylinder head provisions provide clamping capability for power-adder combinations greater than 1,000 horsepower. Although designed with racing in mind, each LSX block is machined to stock LS dimensions to accept stock LS components as well.
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