BluePrint Engines Pro Series Chevy LS 427 C.I.D. 585 HP EFI Base 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 base dressed crate engines pack a 11:1 compression ratio, along with matched BluePrint components into a high-strength LSX-style cast iron block. Available with or without fuel injection ECU and wiring harness. 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 Show Less