I just inherited a "65 Delta 88 with 2bbl 425. I have a "71 Olds 455 in my vintage motorhome that I'm about to convert to FI, thus I'll have a 4bbl Olds 455 intake sitting around.
By any chance are these motors the same with just diff bore/stroke? Might be fun to swap the 2bbl for a 4bbl someday to see the diff.

 

All Olds big block engines are dimensionally identical. Manifolds, heads, distributors, water pumps, all swap.

 

Just what I hoped I'd hear! Thank you!

 

When you say FI, I’m guessing you mean one of the throttle body systems?

 

Be aware that the stock iron BBO intakes aren't light.

 

Grampa might not approve of this change

 

You have an unmolested beauty !!!! Do you really want to open a can of worms ?

 

Thank you, I know. No - I really do not want to touch anything I don't have to. I was mostly curious if the parts were compatible.

 

I think you're correct.