Chevrolet Performance GM Performance ZZ632/1000 Deluxe 19432060 1000HP

Chevrolet Performance's part 19432060, the ZZ632/1000 Deluxe, is a new, naturally aspirated tall-deck big-block V8 at 632 cubic inches, reaching an output near 1000 horsepower when run on premium fuel, built on a cast-iron Bowtie block with four-bolt mains and an all-forged rotating assembly. What the build includes Forged 4340 steel crankshaft, forged H-beam connecting rods, and forged aluminum 2618 pistons, with a bore and stroke of 4.600 by 4.750 inches Aluminum spread-port cylinder heads with 70cc chambers, 2.450 inch intake and 1.800 inch titanium exhaust valves Billet steel hydraulic roller camshaft with 0.780 inch intake and 0.782 inch exhaust lift, 270 degrees intake and 285 degrees exhaust duration at 0.050 Aluminum high-rise single-plane intake manifold, a 4500-style throttle body, 86 lb/hr fuel injectors, and a pre-programmed self-learning EFI control system Installing this big-block The 12.0:1 compression engine runs a 58X crank-triggered, coil-near-plug ignition system on a dedicated valley plate, and Chevrolet Performance caps recommended RPM at 7,000. The throttle body ships uninstalled for crate fitment, so plan to mount it yourself, and you'll still need a starter, a high-pressure EFI fuel pump, and an air cleaner sized for the 4500-series flange. The cylinder head exhaust port layout calls for a custom exhaust, and manual-transmission builds should use an internally balanced flywheel. This engine is not set up for marine use. Specifications Part Number 19432060 Engine Type Chevy Tall-Deck Big-Block V-8 Displacement 632 cu in Bore × Stroke 4.600 in × 4.750 in Block (P/N) Cast iron Bowtie, 4-bolt mains, tall deck (19366599) Crankshaft (P/N) Forged 4340 steel (19366600) Connecting Rods (P/N) Forged steel H-beam (19432392) Pistons (P/N) Forged aluminum 2618 (19366601) Intake Manifold (P/N) Aluminum high-rise single-plane (19366614) Throttle Body (P/N) 4500-style (19366624) Fuel Injectors (P/N) 86 lb/hr (19432057) Camshaft (P/N) Billet steel hydraulic roller (19432531) Valve Lift 0.780 in (intake) / 0.782 in (exhaust) Duration @ 0.050 in 270° intake / 285° exhaust Cylinder Heads (P/N) Aluminum spread-port, RS-X, 70cc chambers (19431810) Valve Sizes 2.450 in intake / 1.800 in exhaust (titanium, 5/16 in stem) Ignition 58X crank-triggered, coil-near-plug Compression Ratio 12.0:1 (nominal) Rocker Arms (P/N) Forged aluminum, shaft-mount, 1.8:1 (19431272) Water Pump (P/N) Aluminum (14058915) Oil Pan (P/N) Steel, 8-quart (19366604) Recommended Fuel Premium pump, 93 octane or higher Max Recommended RPM 7,000 rpm Balanced Internal