Free Shipping on Auto Parts Orders Over $75.                           Order by 11 PM EST for Same Day Shipping!

Chevrolet Performance HT502 502ci/406HP Truck Engine

Chevrolet Performance
Chevrolet Performance HT502 502ci/406HP Truck Engine

An Affordable, Big-Inch Alternative to Rebuilding

Free Shipping!

Don't bother repowering your trusty Big-Block-powered truck with a rebuild or reconditioned used engine. Chevrolet Performance HT502 crate engine is an affordable alternative with more power and greater durability, including a whopping 541 lb.-ft. of trailer-tugging torque. That's more than the factory ever offered and more than you'll get with a stock-type rebuild.

It is uniquely suited to pre-1978 trucks, but is adaptable to a variety of applications, and it's built with the latest-generation block casting with four-bolt main caps. An all-forged rotating assembly delivers exceptional strength and durability, while a mild 8.75:1 compression ratio is suitable for regular pump gasoline at all altitudes and engine loads.

This assembly comes with the heads and a balancer installed. An induction system, ignition, starter, water pump and other accessories are required to finish the engine. All necessary components are available, here at or you can give one of our technical specialist a call at 1-800-345-4545.

  • Engine Type: Chevy Big-Block V-8
  • Displacement: 502ci
  • Bore x Stroke: 4.470'' x 4.000''
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel, shot peened
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .480'' intake / .483'' exhaust
  • Camshaft Duration (@.050 in.): 204° intake / 209° exhaust
  • Cylinder Heads: Iron oval port, 118cc combustion chambers
  • Valve Size: 2.070'' intake / 1.730'' exhaust
  • Compression Ratio: 8.75:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.7:1
  • Flexplate: 14'' diameter, externally balanced
  • Recommended Fuel: Regular pump (89 octane)
  • Ignition Timing: 34° Total at 4000 rpm
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • GM Warranty

    1 Product
    Chevrolet Performance 88890534 - Chevrolet Performance HT502 502ci/406HP Truck Engine
    HT502 502ci Truck Engine
  • 406 HP @ 4200 RPM
  • 541 ft/lbs TQ @ 3200 RPM
  • FREE
    Order Today Ships 05/31/16

    1 Product