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BluePrint Pro Series Chevy LS 427 C.I.D. 800 HP EFI Supercharged Base Long Block Crate Engines PSLS4279SCT
Part Number: MLL-PSLS4279SCT
BluePrint Pro Series Chevy LS 427 C.I.D. 800 HP EFI Supercharged Base Long Block Crate Engines
427 c.i. GM LS Compatible ProSeries Dressed Engine with Supercharger. Incl. 30 month / 50,000 warranty & Dyno
See More Specifications
Estimated Ship Date: Dec 17, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
PSLS4279SCT
Part Type:
Product Line:
Summit Racing Part Number:
MLL-PSLS4279SCT
UPC:
00887753744746
Crate Engine Family:
Chevy LS
Actual Engine Displacement:
7.0L/427
Crate Engine Cylinder Head Material:
Aluminum
Engine Block Material:
Cast iron
Advertised Compression Ratio:
11.0:1
Assembled:
Yes
Engine Balance:
Internal
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
Yes
Intake Manifold Style:
Fuel Injection
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
Yes
Distributor Included:
No
Oil Pan Included:
Yes
Valve Covers Included:
Yes
Timing Cover Included:
Yes
Water Pump Included:
Yes
Harmonic Balancer Included:
Yes
Flexplate Included:
No
Flywheel Included:
No
Air Cleaner Included:
No
Spark Plugs Included:
Yes
Spark Plug Wires Included:
Yes
Computer Included:
Yes
Wiring Harness Included:
Yes
Supercharger Included:
Yes
Supercharger Model:
Magnuson TVS2650
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Includes a Holley Terminator X Max Gen IV complete ECU and harness for engine management.
BluePrint Pro Series Chevy LS 427 C.I.D. 800 HP EFI Supercharged Base Long Block Crate Engines
BluePrint Pro Series Chevy LS 427 c.i.d. EFI supercharged base long block crate engines deliver 800 hp and 780 lbs.-ft. of torque. They include LS3 aluminum cylinder heads, forged pistons, hydraulic roller camshaft, forged crankshaft, and more. The engines are available with or without a Holley Terminator X Max Gen IV complete ECU and harness for engine management. 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
-- Also includes:
* Magnuson TVS2650 supercharger
* Coil packs
* Valve covers
* Oil pan
* Water pump
* Sensors included
* Drive-by-wire throttle body
* Timing cover
* Spark plugs and wires
* Harmonic balancer
-- Notes:
* Not for use in pollution-controlled vehicles.
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