$275 Shipping

ATK HP57 Chevy 350 Base Engine 1987-1991 Corvette

$275 Shipping

ATK HP57 Chevy 350 Base Engine 1987-1991 Corvette
ATK Engines

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#35020160

ATK HP57 Chevy 350 Base Engine 1987-1991 Corvette

  • Oil: Conventional / Non Synthetic 10W30
  • Oil Filter: Wix or K&N per application
  • Timing: 34-36 Degrees
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$5,109.00

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Product Summary

Long Block Crate Engine Type, 10.0:1 Compression Ratio

  • Oil: Conventional / Non Synthetic 10W30
  • Oil Filter: Wix or K&N per application
  • Timing: 34-36 Degrees
  • Spark Plug Gap: .035”
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Key Specs

Crate Engine TypeLong Block
Compression Ratio10.0:1
Engine Displacement350 cu. in.
Camshaft TypeHydraulic Roller
Cylinder Head MaterialAluminum
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Made to Order

This custom item will ship when completed

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ATK Engines HP57 Details

This engine is a performance replacement for 87-91 Corvettes, smooth idle great daily driver.

Engine Specifications:

  • HP: 289
  • TQ: 370
  • Block: OE roller block 4 bolt main 1pc seal 1996-2000
  • Bore/Stroke: 4.040” x 3.480”
  • Displacement: 350CI
  • Crankshaft: OE Reground external balance rear of the crank/internal balance front of the crank
  • Rods: OE powder metal 5.7”
  • Pistons: Hypereutectic 10:1 Compression
  • Rings: Moly
  • Camshaft: Hyd. Roller
  • Cam Specs: 207/214 @50 .411in/.428ex 112LSA
  • Timing Chain: Double Roller
  • Cylinder Heads: Edelbrock performer aluminum 60cc/165cc 2.02/1.60
  • Rocker Arms: Stamped steel rockers 1.6 ratio
  • 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 STD Volume

    Recommended Components:

  • Flexplate/Flywheel: Externally Balanced – Pioneer #FRA-159
  • Balancer: Internally Balanced – PowerBond 6.75” #PB2221-N
  • Intake Manifold: Stock TPI Intake
  • Distributor: Stock Distributor (Iron Gear)
  • Water Pump: Stock
  • Fuel Pump: Stock
  • Spark Plugs: Autolite #3926
  • Spark Plug Wires: Stock

    Engine Info:

  • Oil: Conventional / Non Synthetic 10W30
  • Oil Filter: Wix or K and N
  • Timing: 34-36 Degrees (set with ECM)
  • Spark Plug Gap: .035”
  • Firing Order: 18436572
  • Octane: 91+
  • Stall Converter: Stock
  • Exhaust: 1 5/8 Headers

    Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.

    • CARB Warning

    Follow EPA, CARB, and state regulations for engine changes

    Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine
    CA Prop 65
    CARB warning

    ATK Engines HP57 Specifications

    KEY SPECS
    MFG. Part #HP57
    BrandATK Engines
    Crate Engine TypeLong Block
    Compression Ratio10.0:1
    Engine Displacement350 cu. in.
    Camshaft TypeHydraulic Roller
    Cylinder Head MaterialAluminum
    Piston MaterialHypereutectic Aluminum
    Carburetor IncludedNo
    Intake Manifold IncludedNo
    Distributor IncludedNo
    Valve Covers IncludedYes
    Cylinder Heads IncludedYes
    Throttle Body IncludedNo
    Timing Cover IncludedYes
    Oil Pan IncludedYes
    Water Pump IncludedNo
    Harmonic Balancer IncludedNo
    Flexplate IncludedNo
    Flywheel IncludedNo
    Air Cleaner IncludedNo
    Spark Plugs IncludedNo
    Spark Plug Wires IncludedNo
    Computer IncludedNo
    Wiring Harness IncludedNo
    GENERAL
    Bore x Stroke (in)4.040" x 3.480"
    Material TypeIron
    GTIN Code00653517147395
    Sold in QuantityEach

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