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BluePrint Builder Series LS427/605HP Standard Edition EFI Crate Engine and TKX Transmission Combos

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BluePrint Builder Series LS427/605HP Standard Edition EFI crate engine and TKX transmission combos take the guesswork out of matching up an engine and transmission
BluePrint Builder Series LS427/605HP Standard Edition EFI crate engine and TKX transmission combos take the guesswork out of matching up an engine and transmission for your ride. Featuring a fuel injected Chevy LS small block-compatible 427 (c.i.d.) engine that produces 605 horsepower, this standard edition builder series includes a TKX manual transmission and pulley kit (pulley kit is an optional add-on, depending on the specific engine package you purchase). The aluminum BluePrint Engines cylinder heads help produce a nice 11.1 compression ratio, with assistance from the hydraulic roller camshaft, forged pistons, a
BluePrint Builder Series LS427/605HP Standard Edition EFI crate engine and TKX transmission combos take the guesswork out of matching up an engine and transmission for your ride. Featuring a fuel injected Chevy LS small block-compatible 427 (c.i.d.) engine that produces 605 horsepower, this standard edition builder series includes a TKX manual transmission and pulley kit (pulley kit is an optional add-on, depending on the specific engine package you purchase). The aluminum BluePrint Engines cylinder heads help produce a nice 11.1 compression ratio, with assistance from the hydraulic roller camshaft, forged pistons, and forged crankshaft. Altogether, this assembly produces 565 lbs.-ft. of torque. When you need or want a new LS powertrain for your ride, go with the authority in crate engines and their BluePrint Builder Series LS427/605HP Standard Edition EFI crate engine and TKX transmission combos. Other product features, items, and specifications: * 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 * One-piece rear main seal * Priority main oiling * 4.0665 in. bore * 6-bolt main Rotating Assembly: * Forged crankshaft * Stroke – 4.125 in. * Forged 6.125 in. connecting rods * Forged pistons * Internally balanced (front and rear) Cylinder Heads: * BluePrint cast aluminum PS8015 models * Chamber – 70cc * Valves are 2.165 in. intake and 1.600 in. exhaust * Exhaust runners are 259cc intake and 102cc exhaust Camshaft Specs: * Hydraulic roller * Intake valve lift – 0.624 in. * Exhaust valve lift – 0.624 in. * Intake duration at 0.050 in. of lift – 239 * Exhaust duration at 0.050 in. of lift – 255 * Lobe separation angle (LSA) – 114 degrees Ignition Timing: * ECM supplied calibration Assembled TKX Transmission Package: * McLeod Super Street Pro dual-disc clutch * Hydraulic throw-out bearing * Bell housing * Billet flywheel * Engine guard * Starter * Gear ratios are 2.87:1 (first), 1.89:1 (second), 1.28:1 (third), 1.00:1 (fourth), and 0.68:1 (fifth) Other Components: * MLL-BLS4273KBTKX and MLL-BLS4273KTKX engine/trans combo packages include: Front accessory drive with LT1 style 150-amp alternator, LT1 Style water pump, Type II power steering pump with baffled edges, and compact style A/C compressor * Holley Terminator X Max - Gen IV Complete ECU/Harness EFI System * LS Swap oil pan, windage tray, pickup screen * BluePrint Engines fuel injectors and rail * DBW throttle body * Throttle pedal, and sensors * GM plastic intake manifold * Spark plugs and wires * Harmonic balancer * Coil packs Important Notes: Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars. Not for use in pollution-controlled vehicles or in dry sump applications. BluePrint Engines recommends air intake kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU/tuning. Engine/Trans Package Ships assembled.

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Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission. w/ Black Pulley Kit

Part Number: MLL-BLS4273KBTKX

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

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Estimated Ship Date: Jan 14, 2026 if ordered today

This product may not be eligible for select promotional offers

Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission

Part Number: MLL-BLS4273TKX

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

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Estimated Ship Date: Dec 23, 2025 if ordered today

This product may not be eligible for select promotional offers

Engine 427 c.i. LS Builder Series Iron Block Standard Edition, Fuel Injected, TKX Manual Transmission w/ Polished Pulley Kit

Part Number: MLL-BLS4273KTKX

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

This product may not be eligible for select promotional offers

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