SKU: PSLS42790SCT
BluePrint Engines GM LS Compatible 427 c.i. Pro Series Engine - Magnuson TVS2650 - Base Dressed - No ECU / Harness
$20,749.00
On Backorder
427 c.i. 800 Horsepower Base Dress

Horsepower & Torque: 800 Horsepower / 780 ft. lbs. Torque

Cylinder Heads: BluePrint Engines LS3 Aluminum Cylinder Heads

Compression Ratio: 11:1

Camshaft: Hydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 - 114° LSA - Three Bolt Cam

Pistons: Forged

Crankshaft: Forged Crank - 4.125" Stroke and 6.125" Rods

Supercharger: Magnuson TVS2650

This engine Does NOT come with a Fuel Injection ECU and Wiring Harness. Fuel Recommendation: 91+ Octane

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Financing available at checkout with Affirm

Overview:

The BluePrint Engines GM LS-Compatible 376 C.I. Pro Series Engine is a supercharged powerhouse, producing 800 horsepower and 780 ft-lbs of torque. Based on the highly popular LS platform—ideal for street cars and restomods. It features BluePrint LS3 aluminum cylinder heads, a 11:1 compression ratio, and a high-performance hydraulic roller cam (.624/.624 lift, 239/255 duration @ .050-114° LSA). Forged pistons, a forged crank with a 4.125" stroke, and 6.125" forged rods ensure strength under boost from the Magnuson TVS2650 supercharger.

Description:

  • Horsepower & Torque: 800 Horsepower / 780 ft. lbs. Torque
  • Compression Ratio: 11:1
  • BluePrint Engines LS3 Aluminum Heads
  • BluePrint Engines Hydraulic Roller Cam
  • BluePrint Engines Forged Crank
  • BluePrint Engines Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Increased Deck Thickness and Strength Webbing
  • Utilizes OEM LS3 Front and Rear Covers
  • Improved Water Jacket Design
  • Extended Cylinder Skirt
  • 1-Piece Rear Main Seal
  • Priority Main Oiling
  • 4.070" Bore
  • 6-Bolt Main

Rotating Assembly:

  • Forged Crankshaft
  • 4.125" Stroke
  • Forged 6.125" Connecting Rods
  • Forged Pistons
  • Internally Balanced Front and Rear

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8015
  • 70cc Chamber
  • 2.165" Intake / 1.600" Exhaust Valves
  • 259cc Intake / 102cc Exhaust Runners

Cam Specs:

  • Hydraulic Roller
  • .624 Intake / .624 Exhaust Lift
  • 239 Intake / 255 Exhaust Duration
  • @.050-114 Degree Lobe Separation

Also Includes:

  • Low Profile Rear Sump Oil Pan - BPP81074
  • All Sensors Required for Engine to Run
  • DBW Throttle Body - BPP12191019
  • Magnuson TVS2650 Supercharger
  • Spark Plugs & Wires
  • Harmonic Balancer
  • Timing Cover
  • Valve Covers
  • Coil Packs

Notes:

  • Not for use in pollution-controlled vehicles.

WARNING: Cancer and Reproductive Harm
Bragging Rights Included.

EVERY BLUEPRINT ENGINE ACES THE DYNO TEST

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.

All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.

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