It’s not very often we get to do things over that we regret, like choices and opportunities we missed out on by being to afraid of the outcome. This time around you can set things right;  back in 2005, General Motors came on very strong with their GM Performance Parts Crate Engines. These high horsepower engines have proved themselves unbeatable as far as durability and pricing.

They can be found in everything from drag cars, muscle cars, and even in your dad’s ’32 street rod. With all the focus on the new LS motors, we need to mention the legendary 427 Chevrolet ZL1 (found in the Yenko Camaros in 1969) that GM brought back in 2008. Yes, GM brought back the all-aluminum ZL1. The bad news is there are a very scant few available as of now. So don’t miss the boat again.

The Anniversary 427 features a short block with a forged steel crank, forged steel rods, and forged aluminum pistons for a 9.5:1 final compression ratio. Aluminum, oval port heads have a 110cc. combustion chamber and carry 2.19-inch intake and 1.88-inch exhaust valves. A matching, high-flow aluminum oval-port intake feeds the heads with the help of an 870cfm carburetor. The camshaft is a hydraulic roller with valve lift numbers of .510-inch on the intake and .540-inch on the exhaust. They even added 1.7:1 aluminum roller rockers. Like the original ZL1, the Anniversary 427 comes grossly underrated at 430 horsepower.