BluePrint Engines 427CI GM LS Compatible Long Block BPMS427LS

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Specifications:

BrandBluePrint Engines
Part NumberBPMS427LS
GTIN00887753990976
Air Cleaner IncludedNo
Block DescriptionBlueprint Engines High Strength Cast Iron (lsx Style) Block - 6 Bolt Main - 4.070" Bore
CamHydraulic Roller - .646 Intake / .646 Exhaust Lift - 254 Intake / 266 Exhaust Duration -@.050-113 Lsa
Carb/fuel Injection IncludedNo
Compression Ratio11:01
Crankshaft VendorBlueprint Engines
Cylinder Head VendorBlueprint Engines
Cylinder HeadsLs3 Aluminum Cylinder Heads
Cylinder Heads IncludedYes
Engine BalanceInternally Balanced
Firing Order1,8,7,2,6,5,4,3
Flexplate/flywheel IncludedNo
Harmonic Balancer IncludedYes
Horsepower638
Intake Manifold IncludedYes
Oil Pan IncludedYes-rear Sump
PistonsMahle 4032 Custom Forged
Prop 65 Y/n FlagYes
Pulley Kit IncludedNo
QuantityEa
Rear Main Seal Style1 Piece
Recommended Flexplate/flywheelNon Weighted Bpp12654640 - Bppls1611
Recommended Harmonic BalancerNon-weighted
Recommended Octane Fuel91 Octane
Recommended Spark PlugCch9405
Recommended Spark Plug Gap.045 In.
Rotating AssemblyForged Crank - 4.125 In. Stroke And Forged 6.125 In. Rods
Spark Plugs IncludedNo
Timing Cover IncludedYes
Torque539 lb-ft
Valve Covers IncludedYes
Water Pump IncludedNo

BluePrint Motorsports GM LS Compatible 427 c.i. Pro Series Engine - Naturally Aspirated - Long Block