What engines will fit in my 67 bonneville

Do you want to know where to find an older engine or if you can install another size? Have you considered rebuilding your current one? IF another size, research the Bonnie in that era to see what other engine sizes that were installed in the vehicle. Depending on the size, the transmission, driveshaft, exhaust and rear end might need to be swapped out as well.

Your car will be more valuable if you rebuild the original.

There were date codes, VIN and other identifying features in 1967. If you want it correct you can't swap in any old Pontiac V8. Hagerty had a good article on this and there are other guides online. I will post links that will show up later (hopefully).

Hagerty article. https://www.hagerty.com/media/maintenance-and-tech/identify-pontiac- engine-blocks/

Another resource. http://www.teufert.net/identify/identify.htm#:~:text=The%20date%20code%20is%204,could%2 0be%201966%20or%201976).&text=This%20page%20will%20help%20you,size%20of%20yo ur%20Pontiac%20engine.