sammieolds

Does anyone no if there any suppliers that sell repo exhaust manifolds for the 350 olds is the 350 same all years
Thanks
Stephen

joe_padavano

I'm not aware of any "repro" exhaust manifolds for the Olds 350. The Thorton's dual exhaust manifolds aren't "repro" of anything factory. No, not all 350 manifolds are the same from year-to-year.

sammieolds

So If I cant find a pair I'm going to have to go with headers
There's a crack in one of them maybe I can patch It if
not can anyone recommend a header that will fit a 74 350 easily


Thanks Joe
For the info
Steve

CRUZN 66

If you post the manifold number here, someone may have one available for sale...

sammieolds

I'll look for it

2blu442

I believe these are pretty common manifolds. As the other guys said, if you'll get the correct numbers and post in a parts wanted thread someone here will come up with a set for you.

John

rob1960

350 Olds manifolds from at least '68 thru '74 Cutlasses & '71-'74 88s will work(330 manifolds from '64-'67 may work also),but you will need the block off plate for the pass side for duals since Olds never made true dual exhaust manifolds for the 330/350s. '75 & up has the different outlet, with 3 bolts, on the pass side for use with cat converters While I was going through my girlfriends '76 Salon a few years ago I lucked out & found a real mint pair of manifolds off a '71 cutlass on epay. I bought the pass block off flange from Fusicks. I had my local muffler shop bend up a set of '73-'74 350 dual front pipes. We didn't want to go with headers. Just remember the outlet size on the LH 350 manifold is 2" not 2 1/4" like a big block but the guy that made my pipes was able the "squeeze" down the end of the pipe before we put the flange on & flared the end of the pipe. I'm still blown away by how well his pipes fit,they bolted right in. He bent them up from dimension cards he had with out having the car in front of him.I couldn't bring the car to his shop since it didn't have a cat on it.