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GM Performance Parts

Crate Engine, GM, 502 HO 461HP GM # 19433157

Vehicle Specific View fitment for 4 models
Part# KM01211
Mfg# 19433157
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$10,849.99
List Price: $11,935.95
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What will you do with 461 horsepower and 558 lb.-ft. of torque from Chevrolet Performance’s value-driven 502 HO crate engine? Whether you use it on the street, strip or even pulling a trailer with your workhorse truck, its performance range offers unlimited possibilities. In fact, it makes nearly 500 lb.-ft. by only 1,500 rpm, meaning it has all the low-rpm grunt you can use! To support all that torque, they build this Big-Block with their latest-generation block casting with four-bolt main caps and complement it with an all-forged rotating assembly for exceptional strength and durability. A hydraulic roller camshaft is used for excellent drivability and a broad performance range; and an 8.75:1 compression ratio is suitable for regular pump gasoline at all altitudes and engine loads. This 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.

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 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 19260993): Stamped steel Rocker Arm Ratio: 1.7:1 Water Pump (P/N 19168606): Cast-iron, long-style Flexplate (P/N 10185034): 14" Recommended Fuel: Regular pump Ignition Timing: 32° Total at 4,000 rpm Maximum Recommended rpm: 5,500 Balanced: External Intake Manifold (P/N 19131359): Dual Plane 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 • Designed for pre-1976 street vehicles or any off-road vehicle • Not intended for marine applications

Notes

  • Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.
  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping.
  • SHIP NOTE: This item cannot be shipped FedEx Ground and requires Truck Freight Delivery which must be prepaid by credit or check (no C.O.D). Please call or email us for an exact quote.
  • SHIP NOTE: This item is SPECIAL ORDER and will drop-ship from the manufacturer. While the majority of drop ship orders experience no delays, please be advised that OPGI does not control delivery times.
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This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1964–1977 Chevrolet Chevelle  
1964–1987 Chevrolet El Camino  
1978–1983 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo  
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Crate Engine, GM, 502 HO 461HP GM # 19433157
GM Performance Parts Crate Engine, GM, 502 HO 461HP GM # 19433157