ClassicOldsmobile.com - View Single Post - Will Olds 350 exhaust manifolds work on a 403?

esisson · 12-19-2007, 05:42 PM

RH - 398704 - 330 - 350 Standard issue manifold.
LH - 380001 - 350 X-over manifold

I've been asked this question. I'm not sure the answer. I do know that both the 350 & 403 are both considered to be small blocks. Still not sure if the above manifolds will work. Any help would be appreciated. Thanks

12-19-2007, 05:42 PM	#1 (permalink)
esisson Member Join Date: Nov 2006 Posts: 33	Will Olds 350 exhaust manifolds work on a 403? RH - 398704 - 330 - 350 Standard issue manifold. LH - 380001 - 350 X-over manifold I've been asked this question. I'm not sure the answer. I do know that both the 350 & 403 are both considered to be small blocks. Still not sure if the above manifolds will work. Any help would be appreciated. Thanks