19433157 Chevrolet Performance 502HO Crate Engine

Chevrolet Performance Parts, GM Crate Engines and GM Crate Motors

19433157 Chevrolet Performance 502HO 461 HP Crate Engine, Replaces 12568778
Roller Cammed Street Thumper

A BIG-INCH ALTERNATIVE TO REBUILDING

Don’t bother repowering your trusty Big-Block-powered truck with a rebuild or reconditioned used engine. Our HT502 crate engine is an affordable alternative with more power and greater durability, including a whopping 558 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 our latestgeneration

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.

Our 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 from Chevrolet Performance.

INSTALLATION NOTES

Requires the addition of carburetor, intake manifold, water pump, 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 externally balanced 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
UPC 195491351059

502 HP Tech Specs

- Part Numbern 19433157
- 461 HP @ 5,100 RPM / 558 lb-ft @ 3,400 RPM
- 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 four-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 int- ake / .540 exhaust
- Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
- Cylinder Heads (P/N 12562920): Iron rectangular port; 118-cc chambers
- Valve Size (in.): 2.190 intake / 1.880 exhaust
- Compression Ratio: 8.75:1
- ocker 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: Regular Pump
- Ignition Timing: 32° Total @ 4,000 rpm
- Maximum Recommended rpm: 5500
- Balanced: External

Still have questions or want more information, Please call us at 847-276-8110