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OPGI Price: $6,324.99
Part Type: (P) High Performance, designed to improve performance
Sold As: EACH
2018 El Camino Catalog Page: 247
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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.
Horsepower: 405 @ 5600 rpm
Torque: 406-ft./lbs. @ 4600 rpm
Max recommended rpm: 5800
Compression ratio: 9.72:1
Block: 10105123 cast-iron, 4-bolt main caps
Crankshaft: 12556307 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 Holley flange
Carburetor: 19170093 770 cfm Holley
Distributor: 93440806 HEI
Fuel: 92 octane
Ignition timing: 36 total @ 4000 rpm