Chevrolet Performance ZZ572/720R Long Block Crate Engine 19331585

Replaces 19201334

A 10-second car is quick, but the ZZ572/720R could achieve that with a couple of its spark plugs left in the pits. It is the king of all Rat engines and is capable of pulling your bracket racer or heads-up challenger down the 1320 in the 9-second range. The ZZ572/720R's true value lies in its ready-to-run status when delivered. Rather than waiting weeks for a racing engine shop to build a custom combination, we deliver the ZZ572/720R fully assembled; just bolt on the included Dominator-style 1150-cfm carburetor, along with a starter and fuel pump (not included) and you're ready to go. The ZZ572/720R is built with the best stuff we can find, including an all-forged rotating assembly, rectangular-port aluminum cylinder heads with 113-cc intake ports, and 2.25/1.88-inch valves. There's also a solid roller camshaft with 0.714/0.714-inch lift. If you're building the ultimate dual-purpose car, the ZZ572/720R is suitable for limited forays on the street. It has a 12.0:1 compression ratio, so make sure you've got access to 110-octane gasoline before hitting the local cruise night! Specifications: Part Number: 19201334 Engine Type: Chevy Tall Deck Big-Block V-8 Displacement (cu. in.): 572 Bore x Stroke (in.): 4.560 x 4.375 Block (P/N 19212195): Cast-iron with four-bolt main caps Crankshaft (P/N 88961554): Forged steel Connecting Rods (P/N 19170198): Forged steel, shot peened Pistons (P/N 88963227): Forged aluminum Camshaft Type (P/N 24502611): Mechanical roller Camshaft Lift (in.): .714 intake / .714 exhaust Camshaft Duration (@.050 in.): 278° intake / 282° exhaust Cylinder Heads (P/N 88961160): Aluminum rectangular port, 118-cc chambers Valve Size (in.): 2.250 intake / 1.880 exhaust stainless steel Compression Ratio: 12:1 Rocker Arms (P/N 12361323): Aluminum, roller style Rocker Arm Ratio: 1.7:1 Distributor (P/N 10093387): Electronic ignition Carburetor (P/N 19170096): 1150-cfm Dominator Water Pump (P/N 19168602): Aluminum, short-style Spark Plugs and Wires: Included Recommended Fuel: 110-octane race gas Ignition Timing: Base 8° BTDC, 36° Total Maximum Recommended rpm: 6750 Balanced: Internal Installation Notes Due to crate fitment, the carburetor is shipped in a separate box and needs to be installed by an engine installer Clutch linkage boss is 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 Requires addition of starter, ignition coil, and fuel pump (not included) Gen VI tall-deck block has machined mechanical fuel pump boss Comes with a 14-inch automatic transmission flexplate. Requires internally balanced flywheel for manual transmission applications Designed for pre-1976 street vehicles or any off-road vehicle Not intended for marine applications Big sticky slicks will help hook up this monster This is a Chevrolet Performance product.