LS based GM small-block engine is a product.
 The ZL1 specifications were nearly identical to the production L88 version of the 427, but featured an all-aluminum cylinder block, in addition to aluminum cylinder heads, which dropped the total engine weight into small-block territory (approx
== Generation VII ===== Vortec 8100 (L18) ===The Vortec 8100 L18 is a big-block V8 engine primarily used as a truck engine

