Chevrolet Performance 19431953 Crate Engine

Description

Demanding chassis conversions mandate the Chevrolet Performance 19431953 Crate Engine. This 5.7L 350ci V8 crate engine delivers 285HP for professional turn key commercial long block repower installations. Fleet mechanics must confirm flexplate balance match and starter nose clearance before installation because 1986 and newer blocks use one-piece rear main seal flywheel bolt circles.

Genuine GM ASTM Class 30 gray iron forms the classic small block structure on this GM engine assembly. A nodular iron crankshaft spins inside four bolt main bearing caps to withstand persistent high load cycles. The 12V starter motor pulls 180A during normal starting operations. Total dry mass registers 480 lbs inside an installation envelope of 29in length by 26in width by 27in height holding 5.0 quarts oil capacity.

Key Features of Chevrolet Performance 19431953

Shop owners buy Chevrolet Performance 19431953 Crate Engine assemblies to conquer fleet maintenance issues during an industrial engine rebuild. Computerized deck machining ensures true surface plane alignment to avert coolant leaks.

• Proven 350ci displacement supplies broad torque curves for medium duty utility trucks.
• Four-bolt main bearing journals secure the lower end against high RPM crankshaft deflection.
• High flow cast iron cylinder heads feature 76cc combustion chambers for regular unleaded fuel compatibility.
• Hydraulic flat tappet camshaft profiles optimize low-end torque production between 2,000 and 4,000 RPM.
• The 19431953 commercial engine uses durable cast aluminum pistons to ensure thermal stability.
• Corrosion resistant stamped steel oil pan holds factory oil baffles to control fluid slosh under braking.
• Standard perimeter bolt valve covers allow easy access to stamped steel rocker arms for servicing.

Dyno Bench Output Standards

Factory dyno testing subjects the 19431953 power plant to controlled continuous absorption sweeps. Dynamometer readouts record 285 continuous BHP and 325 ft-lbs torque output at 3,200 RPM. Oil gallery pressure maintains 55 PSI at 190°F operating temperature. Exhaust gas temperature stays below 1,340°F under continuous rated output runs. Cylinder compression verifies at 180 PSI per bore with under 4% variance and crank runout within 0.0003in TIR.

Field Service Boundary Requirements

Standard four barrel carburetor or throttle body linkages require 5 lbs mechanical return tension. Do not install this standard car and truck crate motor into marine watercraft without replacing core plugs with brass marine freeze plugs.

• Drain crankcase oil and install new spin-on filter canisters every 3,000 miles.
• Inspect hydraulic flat tappet rocker arm clearances and pushrod straightness every 30,000 miles.
• Check cylinder head bolt torque at 65 ft-lbs following initial break-in thermal runs.

Warranty Inclusions Product Manifest

This factory crate engine carries GM engineering backing for consistent reliability across your commercial fleet. Purchase provides a 2-Year or 50,000-mile limited replacement parts warranty. The factory wood shipping pallet holds the fully dressed long block core, oil pan, front timing casing, stamped valve covers, oil pump pickup screen, and genuine GM engine documentation.