SKU: PSM6320CTC1
BluePrint Engines GM Marine Big Block Compatible 632 c.i. Pro Series Engine - 775 Horsepower - Base Dressed - Carbureted
$18,149.00
632 c.i. 775 Horsepower Base Dress

Horsepower & Torque: 775 Horsepower / 800 ft. lbs. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 10:1

Camshaft: Hydraulic Roller Cam - .647 Intake / .647 Exhaust Lift and 258 Intake / 266 Exhaust Duration @ .050 - 112° LSA

Pistons: Forged

Crankshaft: Steel Crank - 4.750" Stroke and 6.635" Rods

Fuel Recommendation: 91+ Octane

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Overview:

BluePrint Engines takes big-water performance to the extreme with our Marine Big Block compatible 632 c.i. Pro-Series engine, delivering a massive 775 horsepower in a base-dressed, carbureted package built for serious offshore attitude. This engine is engineered for high-load, high-RPM marine abuse. This engine is precision machined, assembled with premium components, and designed to push heavy boats with authority. Its huge displacement and Pro-Series pedigree deliver relentless torque, explosive top-end pull, and the kind of reliability you need when wide-open throttle is more than a moment—it’s a lifestyle. If you want the biggest, baddest big block on the water, this 632 is ready to rule the waves.

Description:

  • Horsepower & Torque: 775 Horsepower / 800 ft. lbs. Torque
  • Compression Ratio: 10.0:1
  • BluePrint Engines Aluminum Heads
  • BluePrint Engine Hydraulic Roller Cam
  • BluePrint Engine Forged Crank
  • BluePrint Engine Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block, 10.2" Deck Height
  • Manufactured and Machined in the USA!
  • 4-Bolt Main
  • 4.500"
  • 1-Piece Rear Main Seal
  • Mech Fuel Pump Provision: Yes

Rotating Assembly:

  • New BluePrint Forged Crankshaft
  • 4.750" Stroke
  • Forged H-beam connecting rods
  • Forged Pistons
  • Internally Balanced

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8012
  • 119cc Chamber
  • 2.30" Intake / 1.88" Exhaust Valves
  • 358cc Intake / 125cc Exhaust Runners
  • Cylinder Heads Feature a .300 in. Raised Exhaust Port vs an OEM Casting
  • Must Verify Clearance of Exhaust / Headers

Cam Specs:

  • Hydraulic Roller
  • .647 Intake / .647 Exhaust Lift
  • 258 Intake / 266 Exhaust Duration
  • @.050-112 Degree Lobe Separation

Also Includes:

  • 1050cfm Carburetor
  • Edelbrock Aluminum Intake Manifold
  • Distributor
  • Valve Covers
  • Oil Pan
  • Timing Cover
  • Spark Plugs
  • MSD Spark Plug Wires
  • Harmonic Balancer

Notes:

  • For boats being used in salt water, BluePrint Engines recommends a closed cooling system be used as the aluminum cylinder heads and intake manifolds do not have brass lined water passages.
  • Replaces Standard Rotation engines only. Not available as reverse rotation.
  • BluePrint Engines recommends the use of a flame arrestor in marine applications and advises checking local laws to ensure compliance with the United States Coast Guard Requirements for Ignition Protection & Fire Resistance.

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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