Newest 350 crate engine from GM

The new ZZ6 350 crate engine from Chevrolet is one of the most powerful 350-based crate engines from the "ZZ" lineup. Rated at 405 horsepower and 406-ft./lbs. of torque, it uses aluminum Fast Burn cylinder heads equipped with LS-style beehive valve springs for greater high-rpm performance. This crate engine is also built using a cast-iron block with four-bolt mains, along with a forged steel crankshaft, and an aggressive hydraulic roller camshaft. The ZZ6 can be ordered in both a base version that comes with an intake manifold and distributor, as well as a turn-key version that comes complete from oil pan to carburetor, flexplate to accessory drive.

Technical Information: Horsepower: 405 @ 5600 rpm Torque: 406-ft./lbs. @ 4600 rpm Max recommended rpm: 5800 Compression ratio: 9.72:1 Block: 10243870 cast-iron, 4-bolt main caps Crankshaft: 12670965 forged steel Connecting rods: 10108688 forged powder steel Pistons: 10159436 hypereutectic aluminum Camshaft: 10185071 hydraulic roller, lift .474" I, .510" E, duration @ .050" 208 I, 221 E Cylinder heads: 19300955 Fast Burn aluminum 62cc combustion chambers Intake valves: 2.000" Exhaust valves: 1.550" Rocker arms: 19210724 1.5:1 aluminum roller Intake manifold: 12496822 single-plane aluminum Distributor: 93440806 HEI Recommended Fuel: Premium Ignition timing: 36 total @ 4000 rpm