Big horsepower means big, beefy technology, and no one is better at providing a base for big horsepower than GM. Their performance division has come up with a new Bowtie Block in the form of an LSX 376ci that is ready for boost. Lots of boost. GM claims that the all-forged rotating assembly is ready for 1000hp and about 15psi.
The engine is based on the LS7 but with some extra metal left in key parts such as the cylinder bores and deck. This means the engine is ready to be bored out to 454ci. That will get the job done. The block has been accommodated for a six bolt head just in case you need to strap on a turbo or blower… you know, if 1000hp just isn’t enough for you. All the other provisions are set up for stock LS series accessories in case you want to run those.







