BluePrint Engines Pro Series Chevy LS 427 C.I.D. 585 HP EFI Deluxe Dressed Long Block Crate Engines

The LS-compatible platform is the king of street machines, and BluePrint's Chevy LS 427 c.i.d. Pro Series monsters prove why, unleashing a street-scorching 585 hp and 520 lb.-ft. of torque. These deluxe dressed crate engines pack a 11:1 compression ratio, along with matched BluePrint components into a high-strength LSX-style cast iron block, and are offered with a polished or black finished pulley kit. Select GM LS-compatible Pro Series engine needed for your build. Specs and features: * BluePrint Engines high-strength cast iron (LSX-style) block -- Increased deck thickness and strength webbing -- Utilizes OEM LS3 front and rear covers -- Improved water jacket design -- Extended cylinder skirt -- Priority main oiling -- One-piece rear main seal -- 6-bolt main -- 4.0695 in. bore * Rotating assembly: -- Forged crankshaft -- 4.125 in. stroke -- Forged 6.125 in. connecting rods -- Forged pistons -- Internally balanced front and rear * BluePrint LS3 aluminum cylinder heads: -- 69cc chamber -- 2.165 in. intake/1.590 in. exhaust valves -- 259cc intake/102cc exhaust runners * BluePrint hydraulic roller camshaft: -- .624 intake/.624 exhaust lift -- 239 intake/255 exhaust duration at .050 -- 114-degree lobe separation * Ignition timing: -- ECM supplied with calibration -- Not capable of transmission control -- Transmission controller required * Additional components: -- Drive-by-wire throttle body -- LS3 cast aluminum intake manifold -- LS swap oil pan -- Water pump -- Injectors and fuel rail kit -- Spark plugs and wires -- Harmonic balancer -- Timing cover -- Valve covers -- Coil packs * Polished or black front accessory drive: -- LT1-style water pump -- Type II power steering pump with remote reservoir -- LT1-style 140-amp alternator -- 7B10 peanut-style air conditioning compressor Show Less