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BluePrint Pro Series Chevy LS 427 C.I.D. 800 HP EFI Supercharged Deluxe Long Block Crate Engines

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BluePrint Pro Series Chevy LS 427 ci.d. EFI supercharged deluxe long block crate engines deliver 800 hp and 780 lbs.-ft. of torque. They also include LS3 aluminum c
BluePrint Pro Series Chevy LS 427 ci.d. EFI supercharged deluxe long block crate engines deliver 800 hp and 780 lbs.-ft. of torque. They also include LS3 aluminum cylinder heads, forged pistons, hydraulic roller camshaft, forged crankshaft, a Holley Terminator X Max Gen IV complete ECU and harness for engine management, and a polished or black finish accessory drive system. Additional features and specs:

-- Block:
* BluePrint Engines high-strength cast iron block
* Increased deck thickness and strength webbing
* Extended cylinder skirt
* Priority main oiling
* 4.070 in. bore
* 6-bolt main
* One-piece rear
BluePrint Pro Series Chevy LS 427 ci.d. EFI supercharged deluxe long block crate engines deliver 800 hp and 780 lbs.-ft. of torque. They also include LS3 aluminum cylinder heads, forged pistons, hydraulic roller camshaft, forged crankshaft, a Holley Terminator X Max Gen IV complete ECU and harness for engine management, and a polished or black finish accessory drive system. Additional features and specs:

-- Block:
* BluePrint Engines high-strength cast iron block
* Increased deck thickness and strength webbing
* Extended cylinder skirt
* Priority main oiling
* 4.070 in. bore
* 6-bolt main
* One-piece rear main seal
* Improved water jacket design
* Utilizes OEM LS3 front and rear covers
* Compression ratio: 11:1

-- Rotating Assembly:
* New forged crankshaft
* 4.125 in. stroke
* Forged 6.125 in. connecting rods
* Forged pistons
* Internally balanced

-- Cylinder Heads:
* BluePrint aluminum cylinder heads
* 70cc chamber
* 2.165 in. intake / 1.600 in. exhaust valves
* 259cc intake / 102cc exhaust runners

-- Cam Specs:
* Hydraulic roller
* .624 intake / .624 exhaust lift
* 239 intake / 255 exhaust duration
* At .050-114 degree lobe separation

-- Ignition Timing:
* ECM supplied with calibration

-- Also Includes:
* Holley Terminator X Max - Gen IV complete ECU/Harness EFI system
* Magnuson TVS2650 supercharger
* Coil packs
* Valve covers
* Oil pan
* All sensors required for engine to run
* Drive-by-wire throttle body
* Timing cover
* Spark plugs and wires
* Harmonic balancer
* Front accessory drive with power steering pump, water pump, alternator, and air compressor

-- Notes:
* Not for use in pollution-controlled vehicles.
* BluePrint Engines recommends air intake kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.

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427 c.i. GM LS style proseries dressed engine with Supercharger and Polished Pulley Kit -. incl. 30 month / 50,000 warranty & Dyno

Part Number: MLL-PSLS4279SCTK

Not Yet Reviewed

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427 c.i. GM LS style proseries dressed engine with Supercharger and Black Pulley Kit -. incl. 30 month / 50,000 warranty & Dyno

Part Number: MLL-S0038

Not Yet Reviewed

Estimated Ship Date: Feb 13, 2026 if ordered today

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Estimated Ship Date: Feb 13, 2026 if ordered today

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