High Performance Crate Engine Kit
Product Discontinued
ATK ENGINESPART NUMBER: 059-HP291PK

High Performance Crate Engine Kit

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Base Engine

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

Classic 350 engine with great street manners, and vacuum for all your power accessories.

  • Horsepower: 330 hp
  • Torque: 380 lb/ft

Block Information:

  • Seasoned OE 4 bolt main 1pc seal 1987-2000 
  • 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: 9.1:1
  • Pistons: Hypereutectic
  • Rings: Moly

Camshaft Specs:

  • Camshaft: Hydraulic flat tappet
  • Cam Duration @ .050": Intake 224 / Exhaust 234
  • Cam Lift: Intake .465" / Exhaust .488"
  • Lobe Separation Angle: 112lsa
  • Timing Chain: Double roller

Cylinder Head Information:

  • Cylinder Heads: ATK cast iron
  • Combustion Chamber: 76cc
  • Intake Runner: 165cc 
  • Valve Size: 1.94" Intake / 1.50" Exhaust
  • Rocker Arms: Stamped steel 1.5

Oil Pan Information:

  • Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some Corvettes, and 1962-1967 Chevy II's)
  • Oil Pump: Melling high volume

 Base Engines

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

Mid Dress Engines

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

Complete Engines

  • Consists of Mid Dress Engine Build
  • Fuel Pump
  • Carburetor or EFI 
  • Spark Plug Wires
  • Spark Plugs
Part TypeEngine
Product LineATK HP Crate Engines Small Block Chevy 350ci / 330HP / 380TQ
BrandATK ENGINES
Part CategoryPerformance Parts
Part FitmentSemi Universal
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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