ATK HP 454 Big Block Chevy Crate Engine 454ci / 525HP / 550TQ

Engine Specifications

• Horsepower: 525 hp
• Torque: 550 lb/ft

Block Information:

• Seasoned OE 1991-1995 Gen V 4 bolt main 1pc seal (no mechanical fuel pump provision)
• Bore/Stroke: 4.310" x 4.000"
• Displacement: 454ci

Rotating Assembly:

• Crankshaft: OE reground
• Balance: External 
• Rods: OE power metal 6.135"
• Compression Ratio: 9.9:1
• Pistons: Hypereutectic
• Rings: Moly

Camshaft Specs:

• Camshaft: Hydraulic roller
• Cam Duration @ .050": Intake 225 / Exhaust 235
• Cam Lift: Intake .595" / Exhaust .601"
• Lobe Separation Angle: 112lsa
• Timing Chain: Double roller

Cylinder Head Information:

• Cylinder Heads: Edelbrock E-Street aluminum
• Combustion Chamber: 110cc
• Intake Runner: 290cc
• Valve Size: 2.19" Intake / 1.88" Exhaust
• Rocker Arms: Billet aluminum roller rockers 1.7 ratio

Oil Pan Information:

• Oil Pan: Rear sump 
• Oil Pump: Melling high volume

 Base Engines

• Short Block
• Camshaft
• Timing Set
• Cylinder Heads
• Valve Covers
• Timing Cover
• Oil Pan
• Oil Pump & Pickup Tube
• Flexplate

Mid Dress Engines

• Consists of Base Engine Build
• Intake Manifold
• Distributor
• Water Pump 
• Harmonic Balancer

Complete Engines

• Consists of Mid Dress Engine Build
• Fuel Pump
• Carburetor 
• Spark Plug Wires
• Spark Plugs