The Vortec 8100 Is Reliable, But Not That Environmentally Friendly . As can be expected, one of the biggest drawbacks to the ...

Chevy's Vortec 8100 — AKA the L18, AKA the Vortec 8.1 — was the last of The General's big block V8s, a line of engines that traced its lineage clear back to the fire-breathing muscle cars of ...