Chevrolet Performance 19433035 - SP383 Deluxe Crate Engine - 435HP

With a long 3.800-inch stroke and 4.000-inch bore size, the SP383 will impress you with it's low RPM torque as well as how well it pulls into the upper RPM range. The proven Fastburn cylinder heads are all aluminum with big intake runners and are packed with 2.00/1.55-inch valves. The latest upgrades are the beehive valve springs which allow the SP383 to rev higher and build more horsepower. The resulting 435hp and 445 lb.-ft will keep you grinning for years to come. It wouldn't be right if it weren't built using a cast iron four-bolt main block, a forged steel crankshaft, an aggressive hydraulic roller camshaft. It is topped off with a great looking high flow aluminum intake manifold and beautiful black Chevrolet valve covers. Engine SP383 Deluxe Horsepower 435HP @ 5600RPM Torque 445FT/LBS @ 4600RPM Compression Ratio 9.6:1 Block Cast iron with 4-bolt main caps Crankshaft Forged steel, 3.800" Heads Fast Burn aluminum; 62cc chambers Valves 2.000"/1.550" Camshaft Lift 0.509"/0.528" Hydraulic Roller Dur. @ 0.050" 222°/230° Use the Holley 770cfm carb part number 19170093 to achieve the advertised HP and TQ figures Includes carburetor, distributor, spark plug wires, and spark plugs For more hood clearance you can use dual plane intake 12366573, but peak power will suffer by approximately 15-20hp Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission. Designed for pre-1976 street vehicles and offroad vehicle use Not intended for marine applications