America's favorite big-block crate engine is now available fully assembled. All the same great parts used in the ZZ502 kit engines, but fully assembled for easier installation in your hot rod, street rod or sportsman racer. Available in two versions, base (P/N 12496963) and deluxe (P/N 12496962). The base engine is a fully assembled long block with valve covers and valvetrain. The deluxe is a complete engine from intake manifold to pan. (Carburetor and starter included but not installed because of crating.) See the ZZ502 kit engine information for specific content and specifications. Details: America's favorite big-block crate engine is now available fully assembled. All the same great parts used in the ZZ502 kit engines, but fully assembled for easier installation in your hot rod, street rod or sportsman racer. Available in two versions, base (P/N 12496963) and deluxe (P/N 12496962). The base engine is a fully assembled long block with valve covers and valvetrain. The deluxe is a complete engine from intake manifold to pan. (Carburetor and starter included but not installed because of crating.) See the ZZ502 kit engine information for specific content and specifications. ZZ 502/502 Technical Information Horsepower 502 @ 5200 RPM Torque 567 Ft. Lbs. @ 4200 RPM Max. Recommended RPM 5800 Compression Ratio 9.6:1 Block 10237292 Cast iron - four bolt main caps Crankshaft 10183723 Forged steel Connecting Rods 10198922 Forged steel - Shot peened, 7/16" bolts Pistons 12533507 Forged Aluminum Piston Rings 12524293 Camshaft 12366543 Hydraulic roller Lift .527" I, .544 E. Duration @ .050" 224º I, 234º E. Timing Chain 3891519 Single roller Cylinder Heads 12363390 Aluminum oval port 110cc Combustion chambers Intake Valves 12366987 2.25" Stainless Steel Exhaust Valves 12366988 1.88" Stainless Steel Valve Springs 12462970 Rocker Arms 12368082 1.7:1 Stamped Steel Intake Manifold 12363407 Aluminum Holley flange Carburetor 12366996 Holley 850cfm Distributor 1104067 HEI Starter 9000852 Gear Reduction Water Pump 14058915 Aluminum Valve Lash Zero Spark Plugs #4 Rapidfire Gap .035 R43XLS Gap .035 Fuel 92 Octane Ignition Timing 8º BTDC @ 800 RPM 36º Total @5000 RPM Technical Notes: Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts.