BluePrint Engines Pro Series Chevy LS 427 C.I.D. 605 HP

BluePrint Engines Pro Series Chevy LS 427 C.I.D. 605 HP EFI base dressed long block crate engine delivers 605 hp and 565 lb.-ft. of torque with an 11:1 compression ratio. Built on a high-strength cast iron 6.2L block featuring increased deck thickness, extended cylinder skirts, and priority main oiling for durability and performance.

Backed by BluePrint's Dyno Promise—every engine is tested on a computerized dyno and includes a printout of actual horsepower and torque specs. Advanced balancing holds rotating assemblies within 2 grams for smooth power delivery across the entire rpm range.

Topped with LS3 aluminum cylinder heads (69cc chambers, 259cc intake runners) and a hydraulic roller camshaft (.624 intake/.624 exhaust lift, 239/255 degree duration at .050 in.). Forged steel crankshaft with 4.125 in. stroke and 6.125 in. connecting rods. Forged pistons ensure reliability under load.

 packages include DBW throttle body,fabricated intake manifold, fuel injectors and returnless fuel rail, coil packs, spark plugs and wires, valve covers, timing cover, LS swap oil pan, and harmonic balancer. Select the configuration that fits your build—ideal for LS swaps and high-performance applications.