Electronic Distributor I.D.

I have purchased this a few years ago, misplaced the receipt.
It may be late 70's - 80's for
383?

part # 3755681

I plan to offer it for sale.

Thanks in advance -

I'd Google the # to try & get the app (year(s)/what eng) so you could possibly sell it to someone doing a resto. If no go then sell it as NIB 70's basic electronic dist. If G does not tell you the CID then measure the lower shaft length from tang tip up to underside of round mounting flange. iirc the lengths are 3.5" 3&7/8" and 4" (B LA RB likely not in order) & the can orientation as you know would pin it to BB or SB

1974 400 (R,W,P,D,C, w/o H/Perf)

x2

Thank you for the info!

bottom of flange to bottom of tang shaft 3 1/2"

will list it as 74 400