junkyardhero
Well-Known Member
*cough* two-seventy-three *cough*Who do you have in ignore?
Headers vs 340 manifolds
- Thread starter justcuz
- Start date
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ir3333
Well-Known Member
AJ's post explains why the stock 340 cam is not big enough to benefit much from headers.
A good post that illustrates how and why, and the dyno numbers confirm this.
A stock 340's components were well matched and made for a great street performer.
A good post that illustrates how and why, and the dyno numbers confirm this.
A stock 340's components were well matched and made for a great street performer.
I've never put headers on a vehicle and not felt or notice the difference.
I know whoWho do you have in ignore?
Who little old me
Apparently I'm not good for his mental health, I just ignore him the old fashioned way by not interacting with him.
MopaR&D
Nerd Member
I put long tube Hedmans on the 360 in my D200, the stock manifolds were cracked to hell and leaked really bad (noisy). I wanted to see if it would make a difference and they were affordable. Already had true dual exhaust. Sure enough, throttle response improved and needed less throttle for the same acceleration as before. WOT performance didn't improve much thanks to the stock 2-bbl cam but there were still noticeable gains. On a truck that does truck stuff (towing and hauling) extra part-throttle performance is nice to have.
My experience matches 318willrun. I've put cheapy headers on at least 3 stockish 318-powered vehicles and I've never failed to have a noticeable seat-of-the-pants improvement. The only reason I don't have headers now is that I'm cheap and I'm tired of having to worry about smashing the low-hanging cheapies.
Do you plan on any future up grades ?
If so having a good exhaust will generally help with them, if no, headers is still an improvement but is it necessary? worth it? Debatable and up to you to decide.
If so having a good exhaust will generally help with them, if no, headers is still an improvement but is it necessary? worth it? Debatable and up to you to decide.
Just talking about this with some FAST guys @ Cecil County today. Some of those exhaust manifolds are paper thin.
This spawns another comparison.
BS rating? Yep! 275HP @ 5500 was it?
What about higher numbers at higher rpm’s?
Change the distributor? Coil? Wires? Change the timing around? Cam timing straight up or moved around?
Come on now. We know we can shoot holes through this garbage like shooting 273 & DtM in a 55 gallon drum tied together tight.
****! We could be bombed on a case of (enter name of beer) and downed a 5th each of (enter favorite liquor) while tripping on mushrooms and acid while a stupidly hot chick sucks it among a Hoover look lame. Mets not do this stupidness. We already have 273 ******* **** up like he knows what he’s doing inside an engine with the - what now? Zero builds he has done!
IDGAF what the Nazi’s @ the NHRA say it is. They keep adjusting HP numbers all the time. That and rules ******* Chrysler corp. right in da ***!!! Like P Diddy banging lil’boys at his drug fueled ranch.
A 20-25 hp having from headers alone is a fair statement. More is possible.
Still can’t see what you speak of. Ignored member.
(Tired of correcting muthafrackers giving bad advice.)
Magazine test? LMAO! Those numbers will differ from dyno to dyno. State to state. Day to day. Sea level to mile high.
Been there done that with flow benches, friends with there engines have dyno’d them at 3 different shops on my old stomping grounds with wild variations in power and weird looking graphs.
This isn’t going to be a dick swinging contest on ridiculous old information on old dyno’s from decades ago and even more so considering the better equipment available today.
Bingo! THANK YOU!
I'm not even involved in their debate but apparently it's my fault
lol
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Like I said, when you build your first engine, let us know.I'm not even involved in their debate but apparently it's my fault
Experience is a wonderful thing. Go experience building your own engine. There you will learn something. After your umm-teen-th engine, you’ll know who knows and be able to spot a mound of BS a mile away.
Sorry, just seems like a lot of bad grammar and confusion. Just proof read before clicking “post” and it’ll come off much more clear.
He's too busy hating me lol
Thanks buddy. I Appreciate it. I was just tired and wrote the reply without reading it. Hit a wrong key and words get added in. Skip a letter and the word changes. Ugh.
Fixed it.
It definitely something that happens. I use my phone for FABO a lot and between my grammar, small keyboard, and the stupid autocorrect I’ll send one that makes no sense sometimes. I “try” to read every submission one more time before posting.
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