- Engines & Components
- Engine - Assembled / Ready-to-Run
- ATK HP Crate Engines 1987-1991 Corvette 350ci / 289HP / 370TQ
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
This engine is a performance replacement for 1987-1991 Corvettes, with a smooth idle it makes for a great daily driver.
- Horsepower: 289 hp
- Torque: 370 lb/ft
Block Information:
- Seasoned OE 4 bolt main 1pc seal 1996-2000
- Bore/Stroke: 4.040" x 3.480"
- Displacement: 350ci
Rotating Assembly:
- Crankshaft: OE Reground 1 piece seal crank
- Balance: External rear, internal front
- Rods: OE powder metal 5.7"
- Compression Ratio: 10.0:1
- Pistons: Hypereutectic
- Rings: Moly
Camshaft Specs:
- Camshaft: Hydraulic flat tappet
- Cam Duration @ .050": Intake 207 / Exhaust 214
- Cam Lift: Intake .411" / Exhaust .428"
- Lobe Separation Angle: 112lsa
- Timing Chain: Double roller
Cylinder Head Information:
- Cylinder Heads: Edelbrock Performer aluminum
- Combustion Chamber: 60cc
- Intake Runner: 165cc
- Valve Size: 2.02" Intake / 1.60" Exhaust
- Rocker Arms: Stamped steel 1.6 ratio
Oil Pan Information:
- Oil Pan: Rear sump 5qt (Standard SBC oil pan, may not fit some Corvette's. If not, you must use your original oil pan)
- Oil Pump: Melling standard volume
Base Engines
- Short Block
- Camshaft
- Timing Set
- Cylinder Heads
- Valve Covers
- Timing Cover
- Oil Pan
- Oil Pump & Pickup Tube
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ATK Engines HP57
ATK Engines HP57 High Performance Crate Engine 1987-1991 Corvette 350ci / 289HP / 370TQ
$4,760.00
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