Whether you use it for your drag car or competition pulling truck, the value driven 502 HO crate engine offers affordable performance. It’s rated at 461 horsepower and 558 lb.-ft. of torque, for pulling power that exceeds anything ever offered from Chevrolet’s production Big-Block engines. It’s real power that only comes from a Big-Block!
To support all that torque, we built the 502 HO with a brand-new, latest generation block casting with four-bolt main cap. We complement that with an all-forged rotating assembly for exceptional strength and durability, while a hydraulic roller camshaft is used for excellent drivability and a broad performance range. Our crate engine assembly includes an aluminum,
dual-plane intake manifold, a water pump, 14-inch flexplate, balancer and more. You add the carburetor, starter and ignition system—all available from Chevrolet Performance.
INSTALLATION NOTES
- Requires addition of carburetor, fuel pump, starter, distributor and ignition system (not included)
- Clutch linkage bosses are now drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads, for clearance
- 502 engines now have a mechanical fuel pump boss! (NOTE: There is a fuel pump lobe behind the boss.)
- Comes with an externally balanced 14" automatic transmission flexplate; Use flywheel P/N 14096987 and 11" clutch assembly for manual transmission applications
- Not intended for marine applications
TECH SPECS
- Part Number: 19433157
- Engine Type: Chevy Big-Block V-8
- Displacement (cu in): 502
- Bore x Stroke (in): 4.470 x 4.000
- Block (P/N 19170540): Cast iron with 4-bolt main caps
- Crankshaft (P/N 10183723): Forged steel
- Connecting Rods (P/N 19170198): Forged steel, shot peened
- Piston and Ring Kit (P/N 12533507): Forged aluminum
- Intake Manifold (P/N 19131359): Dual plane
- Camshaft Type (P/N 24502611): Hydraulic roller
- Valve Lift (in): .510 intake / .540 exhaust
- Camshaft Duration (@.050 in): 211° intake / 230° exhaust
- Cylinder Heads (P/N 12562920): Iron rectangular port; 118cc chambers
- Valve Size (in): 2.190 intake / 1.880 exhaust
- Compression Ratio: 8.75:1
- Rocker Arms (P/N 19260993): Stamped steel
- Rocker Arm Ratio: 1.7:1
- Water Pump (P/N 12708488): Cast-iron, long-style
- Recommended Fuel: Regular pump
- Ignition Timing: 32° Total @ 4,000 rpm
- Maximum Recommended rpm: 5,500
- Balanced: External
- Flexplate (P/N 10185034): 14"
NOTE: Distributor with melonized steel gear MUST be used with long-blocks and partial engines with steel camshafts, or engine damage will occur.
