Chevrolet 19331581 ZZ572 9.4L Big Block Long Block Crate Engine

Description

Slash quarter mile drag elapsed times using the Chevrolet Performance 19331581 Crate Engine. Displacing 572 cubic inches from an authentic tall deck big block Chevrolet architecture, this ZZ572 base long block generates 620 horsepower at 5500 RPM and 650 lb-ft torque at 4500 RPM. Enormous rectangular port aluminum heads and a hydraulic roller cam produce monstrous streetable big block power.

Brand new Bowtie tall deck cast iron blocks feature a 10.200 inch deck height with four bolt splayed main caps. The reciprocating group combines a 4340 forged steel 4.375 inch stroke crankshaft, forged 6.535 inch H-beam connecting rods, and forged aluminum pistons inside 4.560 inch cylinder bores. The 9.6:1 compression ratio runs on 93 octane pump gas. Sump capacity measures eight quarts, establishing 585 lbs dry weight.

Key Features of Chevrolet Performance 19331581

Buy Chevrolet Performance 19331581 crate engine units to construct high torque pro street vehicles, heavy haulers, and track terrors. The base long block configuration provides an authentic GM factory foundation ready for builder choice induction and exhaust hardware.

• Large 4.560 inch cylinder bore diameter unshrouds valves to maximize high RPM cylinder charging.
• Rectangular port 315cc aluminum cylinder heads flow massive intake air volume past 6000 RPM.
• Four bolt splayed iron main caps eliminate crank walk under heavy combustion pressure pulses.
• Forged 4340 steel crankshaft withstands severe torsional loads during continuous high RPM operation.
• Chevrolet Performance 19331581 valvetrain components feature full roller rocker arms to minimize friction.
• Hydraulic roller camshaft profile creates sharp valve events without valve float at 6000 RPM.
• Internal neutral balance crankshaft simplifies driveline balancing with standard GM flywheels.

ZZ572 Base Dyno Verification Data

Engine dyno records confirm this big block generates 620 brake horsepower at 5500 RPM and 650 lb-ft torque at 4500 RPM across an aggressive 2500 to 6000 RPM operating band. Cam duration measures 254 degrees intake and 264 degrees exhaust at 0.050 inch lift, producing 0.632 inch intake and 0.632 inch exhaust lift. The engine draws 12 in-Hg vacuum at 900 RPM on 93 octane fuel, maintaining 55 to 70 PSI hot oil pressure.

Tall Deck Chassis Envelope Spacing

The 10.200 inch tall deck height widens external cylinder head spread by nearly one inch compared to standard big blocks. Custom aftermarket headers and cowl induction hoods are required to clear intermediate steering shafts and hood sheet metal in vintage GM chassis. The crankshaft couples to heavy duty GM transmission bells using neutral balance big block flexplates.

High Displacement Engine Break In

Pre prime the engine oiling channels with high zinc break in oil using an oil pump drive tool prior to startup. This competition 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.
• Check valve lash adjustments and inspect spark plug deposits every 6000 street miles.

ZZ572 Base Shipped Crate Manifest

Protection includes a 2-Year / 24,000-Mile factory limited warranty guarding against defective components. The shipment crate contains the assembled tall deck long block, aluminum cylinder heads, valve covers, timing cover, oil pan, harmonic balancer, spark plugs, and official factory warranty documentation.