The ZL1 is pretty much an aluminum version of the 427 L88 big-block with open-chamber heads and was originally planned for the Corvette. The aluminum block used cast-iron sleeves (retained with a 1/16 ...
Anniversary 427 Big-Block New for 2008, GM Performance Parts re-releases the vaunted ZL1 crate engine. Built off of the original (and restored) tooling, it's as close to the real thing that you can ...