88 Cutlass Supreme Build

[olds307 and 403]

The BBO W/Z manifolds will not fit. They hit the oil filter and adapter and other side exits into the frame. I used the Sanderson shorties which fit with even the big heavy duty 350/455 starter. The Sanderson headers are 1 5/8" primary tube and very similar to the FE3X prototype headers, that with a better Y pipe and ram air, it was worth 30 hp on the 307 HO swirl port motor.

 

[SupremeSpeed]

They don't have to be big block but I saw a guy do it to his 307 on Facebook. I could be mistaken though, it may have been a 350. It's been awhile ago. Anyway I may just do some work on the stock exhaust manifold. I have a set of long tube headers but I'm putting them on my Salon.

 

[olds307 and 403]

Those are the Thornton Jr 350 manifolds. There are arguments how much better they are than stock manifolds.
https://www.google.ca/url?sa=t&sour...CLoQjBAIKTAD&usg=AOvVaw3CuvL8Sm5AMr07A-Pv3zy_

 

[SupremeSpeed]

Those are the Thornton Jr 350 manifolds. There are arguments how much better they are than stock manifolds.
https://www.google.ca/url?sa=t&sour...CLoQjBAIKTAD&usg=AOvVaw3CuvL8Sm5AMr07A-Pv3zy_

I like those, I'm sure they flow way better than the stock manifolds

 

[olds307 and 403]

I like those, I'm sure they flow way better than the stock manofolds

Yes, the tubular manifolds suck something awful, Olds even went back to the crappy cast iron regular manifolds on the 307 HO, they were that bad. Those JR manifolds with 2.25" duals and a H pipe should be big improvement over the awful stock set up.

 

[SupremeSpeed]

Got some much wanted parts from some stand ups guys, Olds 307 and 403, and QS442 thank you for your the parts at reasonable prices.

 

[jetsetw31]

Nice ride!!! I wish mine was that clean. I'll catch up in time.
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