22 hours ago, Benny Stubenrauch said:I have a 1952 Buick roadmaster that someone put in a V8 in. 1952 was the last year it came with a straight 8, so this is not the engine that came in the car. Trying to figure what year the engine is. The heads have a number of 1165549 cast in them, so from what I know that is years53 to 56, displacement 322/264. Number cast in to the block 1165165 from what I know years 53 to 56, displacement 322.
Have a photo of the car and/or data plate on the cowl?
https://www.buickheritagealliance.org/index.php/restoration/engines/straight_8
QuoteBuick employed Straight-8 engines in all models from 1931 through 1952 and in the Specials in 1953 when the nailhead V-8 was introduced in the Super and Roadmaster models. These engines were rugged and established Buick's lasting reputation for engines which produce gobs of low-end torque. Torque became a design imperative which guided Buick engineers ever after.