The LS3 crate engine is an iteration of the V8 that boasts 430 hp and 425 lb-ft of torque ... The extra-powerful LS376/525 hits a loftier sum of $11,289.50, while the LS3 long block variation ...
It is a marriage between an LS3 engine and an ASA camshaft ... As a result, the power improved dramatically – the crate-only LS376/525 produces 525 horsepower and 486 lb-ft of torque stock.