GM Reveals Next Gen 450 HP Small Block V-8

• Active Fuel Management
• Variable valve timing
• Fuel cutoff at 6,600 rpm
• Camshaft is NOT cam-in-cam like rumored, but there is a cam phaser
• Cylinder firing order: 1, 8, 7, 2, 6, 5, 4, 3 - just like the Gen III and Gen IV Small Block
• Compression ratio is 11.5:1
• The engine weighs 465 lbs

source: GMI