What's the deal with the Poly 318

mvh said
One point that wasn't mentioned was weight. The "L" in the LA small block refers to the fact that the block casting was redesigned to be lighter .

And another minor but irritating point, is "thanks" everybody for not calling them a "wide block," in fact if you tear down an "A" and an "LA" it is not obvious, unless you know just what to look or, what the differences are between the two blocks