BluePrint Engines GM 454 Big-Block Crate Engine Carbureted Base Dressed 460 HP

For the enthusiast who loves nothing more than unwinding with some smooth cruising, this engine is for you. The perfect daily driver, this GM 454 big-block crate engine pulls up to 15” of vacuum. This allows great power brake support. It's even compatible with stock torque converters and gearings. Rigorously tested by BluePrint Engines, it runs beautifully on 87 octane fuel.

Features and Benefits:
- High-strength, cast iron, standard-deck engine block with 4.250” bore
- Operates at 460 horsepower and 479 ft.-lbs. torque
- 9.85:1 compression ratio for better performance efficiency
- 4-bolt main offers stronger bottom end for high-HP applications
- 1-piece rear main seal ensures stronger, leak-free security
- Uses Holley Classic 750-CFM vacuum secondary carburetor with manual choke
- Built-in BluePrint Engines Muscle Series cylinder heads made of aluminum
- Dual-plane, satin aluminum-finished intake manifold
- Cast iron crankshaft with 4.000" stroke and 6.135" rods with 150,000 PSI bolts
- Hypereutectic pistons for better strength and heat resistance
- Rotating assembly has 42.5-oz. external imbalance
- Hydraulic roller cam. for lower maintenance and better strength than flat tappet cam.
- Ignition timing: 10-16 degrees initial, 32-34 degrees total
- Includes mechanical fuel pump provision  
- Backed by BluePrint Engines' 30-month/50,000-mile warranty

Also Includes:
- Valve covers
- Oil pan
- Dipstick
- Timing cover
- Pro Billet harmonic balancer

Cylinder Head Specifications:
- 119cc chambers
- 2.30" intake / 1.88" exhaust valves
- 316cc intake / 124cc exhaust runners

Camshaft Specifications:
- .501” intake / .510” exhaust lift
- 216 degrees intake / 228 degrees exhaust duration
- @ .050-112 degrees lobe separation

Please Note: The cylinder heads feature a .300" raised exhaust port vs OEM casting. Please verify header and exhaust clearance prior to installation.