1987 Buick Hearse

[JLKINSER1970]

Hey all,
I am working on my friends Buick hearse . He bought it several years ago and some one before him had put a different engine in it. They told him it was a 350 out of a 442 Olds Cutless.

Anyway, I know it isn't a 350 nor a 442. I am pretty sure it is a 307. Is there any way I can find out what size of engine this is for sure? Are there any stampings or codes on the block that will tell me?

Thanks!

[maxwedge]

Get the block casting number and try googling it.