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headers #755249
December 27th 2019 11:53 pm
December 27th 2019 11:53 pm
Joined: Apr 2018
Posts: 22
chehalis, washington
D
dr_theopolis Offline OP
stranger
dr_theopolis  Offline OP
stranger
D
Joined: Apr 2018
Posts: 22
chehalis, washington
anybody out there ever put headers on a dodge 318?. .looking for recommendations but don't know what will fit best, tie in properly with exhaust, etc. thanks!

Re: headers [Re: dr_theopolis] #755250
December 28th 2019 8:08 am
December 28th 2019 8:08 am
Joined: May 2018
Posts: 1,284
TN
Astrocreep66 Offline
old hand
Astrocreep66  Offline
old hand
Joined: May 2018
Posts: 1,284
TN
Put some on an my 85 and took them back off, so truck headers are a no go. I am looking to order small dodge rv headers, I am sure there are others ,but I know A body and truck headers are out on 79 and up.


When in doubt..get the sawzall out..
Re: headers [Re: dr_theopolis] #755260
December 28th 2019 1:49 pm
December 28th 2019 1:49 pm
Joined: Apr 2010
Posts: 2,716
San Diego
W
wrcsixeight Offline
veteran
wrcsixeight  Offline
veteran
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Joined: Apr 2010
Posts: 2,716
San Diego
I thought headers became useful on higher revving engines, and useless and perhaps a detriment to engines that cant/wont rev high, like a stock 318.

I think on a stock 318 they would perhaps lower low end torque, and perhaps just become problematic with time, as most headers seem to do.

Re: headers [Re: dr_theopolis] #755261
December 28th 2019 5:12 pm
December 28th 2019 5:12 pm
Joined: Feb 2018
Posts: 102
Seattle, Washington, USA
RichardB Offline
member
RichardB  Offline
member
Joined: Feb 2018
Posts: 102
Seattle, Washington, USA
These headers will fit a van. Hedman Headers There is a ceramic coated version as well, twice as expensive but would be much more durable.
Any headers you'll need to have a Y-pipe made (the stock y-pipe is actually horribly restrictive, you want to ditch that!), and new pipe and muffler back from that. Any exhaust shop can handle that.

I've considered for my van having a new exhaust made using the stock manifolds so I can keep noise down, new y-pipe and a 2 1/2" pipe instead of the stock 2 1/4". I feel like this would be nice from a noise standpoint, and the pipe would not be so large as to reduce back pressure and torque, while still adding a bit to the top end.

Cheers,

- Rich


1991 Dodge B250 Zephyr Conversion. "Bi-frost" 74,000-ish original miles and counting.
- 318TBI; has headwork and other bolt on upgrades. Runs strong and smooth!
- Powertrax locker
- 3" aluminum radiator.
- Rear air springs, rebuilt suspension, steering stabilizer.

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