Chevrolet 19433157 502 CID HO 461 HP Big Block Crate Engine

Description

During severe continuous fleet towing routes, the Chevrolet Performance 19433157 Crate Engine maintains unyielding oil pressure and relentless low end torque. Displacing 8.2 liters across 502 cubic inches, this 502 HO engine outputs 461 horsepower at 5100 RPM and 558 lb-ft torque at 3400 RPM. Complete with cast iron heads and a dual plane intake, it delivers extreme big block grunt.

Solid cast iron Gen VI block casting features heavy cylinder walls anchored by four bolt ductile iron main caps. The reciprocating kit contains a forged 4340 steel 4.000 inch stroke crankshaft, forged steel rods, and forged aluminum pistons inside 4.470 inch bores. Static compression measures 8.75:1 for 87 octane pump gasoline. Total dressed dry weight measures 615 lbs.

Key Features of Chevrolet Performance 19433157

Buy Chevrolet Performance 19433157 crate engine packages to drop proven big block displacement into vintage pro street cars and custom trucks. The package includes intake manifold, water pump, harmonic balancer, and flexplate to accelerate vehicle completion.

• Dual plane cast iron intake manifold maximizes low and midrange torque while pulling hard to 5200 RPM.
• Large 4.470 inch cylinder bore diameter unshrouds valves to maximize low speed cylinder charging.
• Hydraulic roller camshaft profile creates sharp valve events without valve float at 5500 RPM.
• Four bolt main cast iron caps lock the crankshaft in place under continuous acceleration strain.
• Included long style cast iron water pump supports traditional V-belt or serpentine accessory drives.
• Forged 4340 steel crankshaft produces 558 lb-ft torque to launch heavy vehicle chassis hard.
• Chevrolet Performance 19433157 components meet original factory equipment blueprint tolerances.

502 HO Dyno Output Performance Curves

Engine dyno records confirm this big block generates 461 brake horsepower at 5100 RPM and 558 lb-ft torque at 3400 RPM across an aggressive 1500 to 5500 RPM operating band. Cam duration measures 211 degrees intake and 230 degrees exhaust at 0.050 inch lift, producing 0.510 inch intake and 0.540 inch exhaust lift. The engine draws 15 in-Hg vacuum at 750 RPM on 87 octane fuel, maintaining 45 to 60 PSI hot oil pressure.

Big Block Subframe Engine Clearance

Standard big block Chevrolet dimensions drop straight into Camaro, Chevelle, and C10 crossmember perches without big block frame modifications. The crankshaft requires an external balance flexplate or flywheel matched to standard GM transmission bellhousings. Included water pump hardware maintains radiator clearance, while the eight quart oil pan clears intermediate steering linkages.

Initial Break In Operating Limits

Pre prime the engine oiling channels with high zinc break in oil using an oil pump drive tool prior to startup. This commercial truck crate engine is not engineered for marine bilge setups, forced induction boost exceeding six PSI on stock ring end gaps, or unmetered nitrous oxide systems.

• Drain break in oil and replace the spin on lube filter after the first 500 operating miles.
• Perform regular motor oil changes every 3000 miles or six months with high zinc synthetic oil.
• Inspect accessory drive belt alignment and check water pump hose connections every 6000 street miles.

502 HO Crate Manifest Warranty

Protection includes a 2-Year / 24,000-Mile factory limited warranty guarding against defective components. The shipment crate contains the assembled engine, intake manifold, water pump, harmonic balancer, flexplate, spark plugs, oil pan, valve covers, and official factory warranty documentation.