The TH350 test fleet had engine codes for several engines, including the base V8 (LF7), the L30, and the L48 (SS). The White Book even lists one for the 302, though I've never seen it in any GM documentation.
It was unclear for a long time if they actually produced all these variants. The L30 had been documented early on, but L48 and LF7 had little solid data.
So far we've seen 3 L30's, 2 L48's (now), and 1 LF7 (only the engine was original).
This car is the first with a Ypsi trans, all the others had Clevelands in them.
Site updated. Thanks!
Gary,
05E is a bit long, but not exceptionally.