GM Performance Engine Assembly, Crate Engine, HT502, Each (PART #GMP-19433156)

GM Performance HT502 long block crate engines offer tremendous value and performance. They're based on the Gen VI 4-bolt mains with one-piece rear main seal blocks.

Features include:

  • Approximately 8.75:1 compression
  • 406 hp at 4,200 rpm
  • 541 lbs.-ft. of torque at 3,200 rpm
  • 4.000 in. stroke, forged steel, externally balanced crankshafts
  • Forged steel connecting rods
  • Forged aluminum pistons
  • Hydraulic roller camshafts with .480 in. intake lift, .483 in. exhaust lift, 204 intake and 209 exhaust duration at .050 in., and 112 degree lobe centerline
  • Cast iron cylinder heads with oval port 118cc combustion chambers
  • 275cc intake runner volume with 2.07 in. intake valves and 1.73 in. exhaust
  • Configured for 3/8 in. thread 7/16 in. shank rocker arm studs
  • Stamped steel, self-aligning, 1.7:1 ratio rocker arms
  • ACDelco spark plugs
  • Oil pans
  • Black powdercoated aluminum valve covers and timing covers
  • 8 in. harmonic balancers
  • 14 in. automatic flexplates

SPECIFICATIONS

Brand GM Performance
Manufacturer's Part Number 19433156
Part Type Crate Engines
Product Line GM Performance HT502 Long Block Crate Engines
Crate Engine Family Chevy Big Block
Actual Engine Displacement 8.2L/502
Crate Engine Cylinder Head Material Cast iron
Engine Block Material Cast iron
Advertised Compression Ratio 8.75:1
Assembled Yes
Engine Balance External
Cam Style Hydraulic roller, OE roller
Rear Main Seal Style 1-piece
Intake Manifold Included No
Cylinder Heads Included Yes
Carburetor Included No
Throttle Body Included No
Distributor Included No
Oil Pan Included Yes
Valve Covers Included Yes
Timing Cover Included Yes
Water Pump Included No
Harmonic Balancer Included Yes
Flexplate Included Yes
Flywheel Included No
Air Cleaner Included No
Spark Plugs Included Yes
Spark Plug Wires Included No
Computer Included No
Wiring Harness Included No
Supercharger Included No
Remanufactured No
Quantity Sold individually.
Notes Not intended for marine applications. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty.