502 HO

Affordable Big Block Performance with Huge Torque and 450 Horsepower!
With 450 horsepower and 550 lb.-ft. of torque, our 502 HO crate engine has power on tap for every need – whether it’s a ’69 Chevelle at the drag strip or the Suburban that towed it there!

The 502 HO is all about torque. It hovers just below the 500 lb.-ft. mark at only 1,500 rpm and arcs gently above the 500 lb.-ft. level by 2,800 rpm, remaining there through 4,200 rpm. All those axle-twisting pound feet are rooted in a stronger, updated four-bolt cylinder block that houses a forged steel crankshaft, forged and shot-peened rods and forged aluminum pistons. In other words, it’s a super-stout assembly that is as durable as it is powerful. 

Iron, rectangular-port cylinder heads keep the 502 HO affordable and 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 at www.Chevrolet.com/Performance.

502 HO TECH SPECS
Part Number: 19433157
Engine Type: Chevy Big Block V8
Displacement (cu in): 502
Weight: 602
Hosre Power: 450
Torque: 550
Trans*: C
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
Pistons (P/N 12533507): Forged Aluminum
Camshaft Type (P/N 24502611): Hydraulic Roller
Camshaft 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 12523976): Stamped Steel
Rocker Arm Ratio: 1.7:1
Water Pump (P/N 19168606): Cast Iron, Long Style
Flexplate (P/N 10185034): 14"
Recommended Fuel: 92 Octane
Ignition Timing: Base 8° BTDC, 30° Total
Maximum Recommended Rpm: 5,500
Balanced: External

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!
• Comes with an externally balanced 14" automatic transmission flexplate. Use flywheel P/N 14096987 and 11" clutch assembly for manual transmission applications
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications

502 HO Installationt Guide PDF

502 HO Warranty Detail PDF

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