Hello, I am new to the web site. I am working on a 1969 Firebird, I'm trying to fiqure out what size motor i have. The only number I am able to find is located on the right front side of the engine block, the number is 161342 YD.

Thanks in advance

Frank

Welcome to the site!

Please search the forum, just a few weeks ago we posted links, photos and information on this subject. Chances are it's a 400, but it's not a Firebird engine.

https://firstgenfirebird.org/forums/ubbthreads.php?ubb=showflat&Number=214915

And to save you the drama:


http://www.yearone.com/updatedsinglepages/id_info/pontiacengineid/pontengid1.html

Type "Pontiac V8 engine id" into a search engine. There are even more clear information than this one. This was first on the serach list.