- Engines & Components
- ATK HP 454 Big Block Chevy Crate Engine 454ci / 525HP / 550TQ
In 2007, ATK launched a High Performance Division with one of the finest engine shops in the country. By reverse engineering all of their engines, they are able to eliminate any OEM deficiencies. This makes an ATK built crate engine have a superior design over the original engine by incorporating better components when needed. These quality built engines are offered in three different stages for ease of finishing an engine swap. ATK HP engines feature a 24 month/unlimited mile warranty.
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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
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PRICE
Base Engine
ATK Engines HP451P
ATK Engines HP451P High Performance Crate Engine Big Block Chevy 454ci / 525HP / 550TQ
$7,300.00
Estimated to ship direct from manufacturer on 10/21/24, pending manufacturer availability.
Lowest Price Guarantee
$7,300.00
Estimated to ship direct from manufacturer on 10/21/24, pending manufacturer availability.
Lowest Price Guarantee
Mid Dress Engine
ATK Engines HP451PM
ATK Engines HP451PM High Performance Crate Engine Big Block Chevy 454ci / 525HP / 550TQ
$8,279.00
(1)
Estimated to ship direct from manufacturer on 10/21/24, pending manufacturer availability.
Lowest Price Guarantee
$8,279.00
(1)
Estimated to ship direct from manufacturer on 10/21/24, pending manufacturer availability.
Lowest Price Guarantee
Complete Engine
ATK Engines HP451PC
ATK Engines HP451PC High Performance Crate Engine Big Block Chevy 454ci / 525HP / 550TQ
$8,498.99
(1)
Estimated to ship direct from manufacturer on 11/11/24, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
$8,498.99
(1)
Estimated to ship direct from manufacturer on 11/11/24, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee