Trying to decide on which headers to buy

Olds 307 and 403

Active member
Oct 4, 2018
163
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28
Melville, Saskatchewan
Ok, so I have been looking at swapping the exhaust on 70S back onto my 88 Cutlass, sounded so much better on it. I could put the less than 2" dual exhaust with 260 manifolds back on car. The Thornton shorty's will only bolt on to the driver's side. Either was Thornton shorties are $450 Canadian shipped plus $200 for down pipes. Or Hooker Comp headers ceramic coated are $800 CAD shipped. Only the rust quickly Flowtech or eBay stainless headers are the only affordable options.
 

Olds 307 and 403

Active member
Oct 4, 2018
163
52
28
Melville, Saskatchewan
I finally found some pics of the Chinese Stainless eBay headers installed on a 72 Cutlass with an Olds 350. They hang a bit low but my car has similar ground clearance, they should be no problem. I would probably get the ball and socket 3" collector, go 2.5" pipes with the most affordable Turbo mufflers. I can do it all for about $400, compared to $1000. For $230 Canadian shipped, those headers are a no brainier. I am hoping a full size starter will work.
 

marcar1993

New member
Oct 3, 2018
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CNJ
Are you looking for headers for the 72 or the 88?
 

Olds 307 and 403

Active member
Oct 4, 2018
163
52
28
Melville, Saskatchewan
Sorry, the 70S. The Sanderson shorties with custom bent 2.5" down pipes into a compact 2.5" X pipe all under the passenger hump then the back half of a Hooker 2.5" cat back exhaust is going back on the 88. The poor 260 needs all the help it can get, this system really made a difference past 3000 RPM and was very slightly stronger down low and sounded beyond great. It was droning and just didn't sound the same on the 70S. I need the mini starter I have for 88 due to the down pipe routing. I have two full size starters I want to use. My 88 has squat for ground clearance compared to my 70S, I still got occasional scrapes on my 88 but have since put on 1" taller front tires. I seriously have about 6" of ground clearance with the 70S. I want cheap exhaust, I finally want to get my 403 block to the machine shop and finally assemble the 424 stroker short block this year, so the most affordable is best, not a $1000 exhaust. Has anyone tried the ball and socket adapter, will it work with regular style collectors? Otherwise I will go Copper or Aluminum collector gaskets and may still have Cooper manifold gasets I would coat with RTV.