[Mr70]

Kim's right.No L-78's in the 1971 model year.
ST 71=1971
13617..should be ending w/37=is 2 door Malibu Body style w/any 8 cylinder engine.
R=Ass.plant,Arlington Tx.
11093=is Body Sequence No.
TR 706=Black Vinyl Bucket seats.
19 19=is Tuxedo Black paint upper & Lower.
11E=is November 5th week assembled.
496=internal tracking no.

None of this will signify what engine it came with originally.
Find out specifically why they are making the L-78 claim.