So I recently traded my bike for an 73 Omega Its got a stock 350 Rocket will a true duel flowmaster exhaust. Then I traded sum 327 heads n other sbc parts for a running 65 Olds 98 425 Super Rocket with 400 turbo. So Ive done sum digging and what Ive got is it will drop right in no mods!! Seems too easy. Except that the exhaust will not work.? So from what I gathered is sb to bb is just deck height n crank size. Still seems to easy.If this is so heads would interchange n therefore headers would interchange right.? Otherthan the change in deck height sitting the heads what an 1" at most higher n 39* bank n 45* bank angle. Feel free to correct me if Im wrong Olds is New to me. Im a Chevy guy. N like I say seems to easy n I also no that BB Chevy Header for a Camaro work well in Novas So my question is will 403 Trans Am Headers work well in a Omega. Thanks for any help...pics fail to load on site..weird..

 

The TA headers might fit but the 403 is a short deck SBO motor so a BBO they might be too high in the chassis. Its worth a try though. I think there is a thread on here you might search for. The official BBO Omega thread or something like that.

 

I don't know for sure, but coming from the the same ranks, [chevy] I'd think they'd fit, especally if close in years.
Supposed to be the same subframes.

 

Ya just found a set on craigslist for 30 bucks gonna pick em up just to try. Will the 400 go in place of 350 trans w/o cutting driveshaft?

 

No, get out the hacksaw!

 

https://classicoldsmobile.com/forums...ga-thread.html

He has been working on one....

 

Welcome to the site, lets see it...