Engine swap
 

Hello, I am new to all this so please bear with me. I have a 73 Monte carlo that I bought that has a 350 in it and it has a big block vin# so I bought a 454 motor for it but then had an after thought that might be costing me, will this 1991 gen5 454 big block accually bolt up under the hood. I was going to just pull the 350 and give it a go, but being a disabled 55 year old man makes this way a very time consuming way, so I thought I would ask some of you that might know these cars a bit better than I. does anyone have any ideas on this that might help me?

Yes a fuel injected 454 will bolt up directly under the hood. A few thing would be needed as a electric fuel pump and depending on what induction (carb,fuel) you would need a different intake manifold to run a carb. Other than that I don't recall anything else that would be a big issue. Good luck

Engine swap
 

Thank you very much for the information, it is sure going to help me out. glad to be a new member of this forum. It's nice to have the help of some knowledgable people thanks again.

Glad to be assistance, tons of members here to share knowledge and opinions. Welcome to the forums