Eng/tranny ID

["Heglund, Davis (MN17)" <davis.heglund@honeywell.com>]

Back with another issue.  I'm hoping that someone out there can help me ID
an engine and tranny.  I inherited this engine from a GT6 parts car that had
been set up for some type of racing.  I was told the engine was from a TR4.
It looks like a TR4 engine and tranny, but the numbers are odd and I can't
find them listed anywhere.
Engine: BIL 301435   Gearbox:  304692  Bellhousing:  GT 7193
I'd like to sell it but need to know for sure what it is, first.  Appreciate
any help.  Thanks.
Dave H   '69 GT6  "The Mistress"