My option for headers...1987 Cutlass Supreme 350 sbo.

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Oct 14, 2008
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What about Thornton jr manifolds? They do not leek they fit like a glove and flow better than olds w and z big block manifolds.just a suggestion
Not sure about that, betting only a slight improvement over stock manifolds. They are only slightly bigger and partially divided inside. Hooker is dumb, they have these. https://m.summitracing.com/parts/hok-3108-1hkr/none/images#
Or these
https://m.summitracing.com/parts/hed-58073
The ARH headers cost about $1200 US, they better be perfect.
 

403Olds

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May 31, 2014
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I've had both hedman and hooker's. the hooker's are nicer, but the hedman's are almost identical, pretty much a knock off of the hooker's. Both fit fine, but don't point straight back, so had to make 10 degree adapters to hook up the rest of the exhaust.
 

Clutch

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spencer83

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Nov 11, 2016
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I've had both hedman and hooker's. the hooker's are nicer, but the hedman's are almost identical, pretty much a knock off of the hooker's. Both fit fine, but don't point straight back, so had to make 10 degree adapters to hook up the rest of the exhaust.
What's up with the name "Supreme" they're saying they won't fit. This sucks
 

403Olds

G-Body Guru
May 31, 2014
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South Central Ohio
I've seen that statement on a few headers....no idea. I've had both in my 85 Salon with a 403. Can't imagine what's different on a Supreme.
 
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spencer83

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Nov 11, 2016
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I've had both hedman and hooker's. the hooker's are nicer, but the hedman's are almost identical, pretty much a knock off of the hooker's. Both fit fine, but don't point straight back, so had to make 10 degree adapters to hook up the rest of the exhaust.
What's up with the name "Supreme" they're saying they won't fit. This sucks
I've seen that statement on a few headers....no idea. I've had both in my 85 Salon with a 403. Can't imagine what's different on a Supreme.
do you have any part numbers
 

Clutch

Geezer
Apr 7, 2017
5,183
10,900
113
Brick NJ
I've seen that statement on a few headers....no idea. I've had both in my 85 Salon with a 403. Can't imagine what's different on a Supreme.
Years ago I called a company about that and there answer made no sense. They said something about a supreme being offset to one side? I figured it to be BS and ignored it ever since because the only difference I ever found in g-boby frames is in cross member mounting some don't have a second set of holes or the box section is different on the drivers side. No big deal
 

spencer83

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IMG_2108.PNG Some say yes some say no. I'm lost bros. I've been trying!
 
Oct 14, 2008
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Melville,Saskatchewan
If I pay 1200 for a set of headers they better come installed lol
Along with full exhaust:).
The Supreme thing has been BS for years. The frame and chassis are identical, pay no attention. The Hedman headers are the best value. I like my Sanderson shorty header's.
 
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