Description

GM Big Block Compatible Engine

The GM Big Block Compatible Engine is designed to deliver high horsepower and torque, offering excellent performance for enthusiasts who demand power. Here’s a breakdown of the engine’s key features:

Engine Overview:

• Horsepower: 460 hp
• Torque: 479 lb-ft
• Compression Ratio: 9.85:1
• Operating Range: This engine is built to provide substantial low-end torque and consistent power through a wide range of RPMs.

Block & Rotating Assembly:

• Block: High-strength cast iron block, 454 BBC, providing durability for high-performance applications.
• Bore: 4.250″ for a balanced displacement.
• Crankshaft: Cast crankshaft designed to handle the stress of high horsepower.
• Connecting Rods: 6.135″ rods with 150,000 PSI bolts for strength and durability.
• Pistons: Hypereutectic pistons, known for their strength and ability to handle heat and pressure under high-performance conditions.
• Balance: The engine is externally balanced for smooth operation at higher RPMs.

Cylinder Heads:

• Cylinder Heads: BluePrint PS8013 aluminum cylinder heads, which feature 119cc chambers and 316cc intake/124cc exhaust runners for maximum airflow.
• Valves: 2.30″ intake and 1.88″ exhaust valves, allowing for increased airflow, which is critical for high-performance power output.
• Exhaust Ports: The heads have a .300-inch raised exhaust port compared to the OEM design, which increases exhaust flow and overall engine efficiency. You will need to verify header/exhaust clearance due to this modification.

Camshaft:

• Cam Type: Hydraulic roller camshaft.
• Lift: .501 intake / .510 exhaust, which allows for a good balance of power and driveability.
• Duration: 216 intake / 228 exhaust duration @ .050”, allowing for efficient intake/exhaust events that contribute to high RPM performance.
• Lobe Separation: 112-degree lobe separation, ideal for street-driven performance engines, providing a good balance of idle characteristics and power at higher RPMs.

GM Big Block Compatible Engine

Ignition & Timing:

• Initial Timing: 10-16°.
• Total Timing: 32-34° at 3500 RPM, which is optimized for performance and engine longevity.

Fuel & Intake System:

• Carburetor: Holley Classic 750 cfm vacuum secondary carburetor with a manual choke, providing excellent fuel delivery and control.
• Intake Manifold: Dual-plane, satin aluminum intake manifold that provides a good balance of low-end torque and high-end performance.

Additional Components:

• Valve Covers: Included for a clean finish and to protect the engine’s valve train.
• Oil Pan: Included for proper oil flow and engine lubrication.
• Timing Cover: For camshaft timing and to complete the engine assembly.

Summary:

The BluePrint Engines 454 BBC Crate Engine offers a balance of power and performance with 460 horsepower and 479 lb-ft torque. Its 9.85:1 compression ratio allows it to run on pump gas while delivering substantial power. With the CNC-ported cylinder heads and a hydraulic roller cam, this engine is perfect for enthusiasts looking to upgrade their big-block engine for street or mild racing applications.