New to Mopar

Killer6 said
Welcome to FABO! If it's a '69, it's unlikey to have a 273, 318 or 340 was it for smallblocks. If it's a 270 trim level model, probably had a 'teener for motivation stock. If so, the 1.88/1.60 valves will fit fine. To My knowledge, '67 was the last year for the 273, but You could have a transplant. Let Us know what You find.

Camshaftkid said
Numbers indicate original 273 / 904

The last year for the 273 was 69...

67 was the last year for the solid cam/adjustable rocker arm 273's...

68 & 69 273's had the same hydraulic camshaft and rocker arms as the 318 for those years...

Refer to the charts in this article:

Factory V-8 Engine and Cam Specs by Year 1965-1975