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#43 ·
"On a 600hp street or strip terror, unbolting a big-tubeheader in favor of stock manifolds could cost upwards of 100 hp. "

i know your truck doesn't have 600hp, but even if it were proportional, i think it would be more than 2hp over stock manifolds...
 
#44 ·
greendak97 said:
I dont have a clue?
Well maybe these guys do. What info are you basing your opinion on?

http://www.moparmusclemagazine.com/...agazine.com/techarticles/engine/mopp_0307_mopar_crate_engine_exhaust/index.html
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I don't see what you are referring to, I see upwards of 15hp over their base readings and with the exception of giving up a little in the 3500-4500 range they performed virtually as good as long tubes, and across the board they consistently out performed the stock type manifolds in horsepower and torque.
 
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Discussion starter · #45 ·
98R/T said:
"On a 600hp street or strip terror, unbolting a big-tubeheader in favor of stock manifolds could cost upwards of 100 hp. "

i know your truck doesn't have 600hp, but even if it were proportional, i think it would be more than 2hp over stock manifolds...
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well yea i didnt literally mean 2 hp just a real small amount
 
Discussion starter · #46 ·
9t9-5.2 said:
I don't see what you are referring to, I see upwards of 15hp over their base readings and with the exception of giving up a little in the 3500-4500 range they performed virtually as good as long tubes, and across the board they consistently out performed the stock type manifolds in horsepower and torque.
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i was comparing the 340 manifolds to the shorties and that was like 6 hp check again.
 
#49 ·
greendak97 said:
no but i hear that the magnum manifolds flow better than the old 340 manifolds
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That might be the case, but I doubt it. The 340 manifolds they used are the highly sought after high performance manifolds that resemble a header. The 92-early 93 magnum manifolds out flow the late 93 through end of production magnums. The 92-93's have a 2 1/8" outlet vs. the 1 7/8" on the late 93-04's, the 92-93 had a 10 hp higher rating that went away when the smaller manifolds were put in production with no other changes made to the engine.

BTW, I have a pair of the 92-93 2 1/8" manifolds I would sell if interested. They don't have any casting numbers on them, I ground them and all of the rough casting smooth and painted with ceramic high temp paint, but there is no mistaking the outlet size.
 
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Discussion starter · #50 ·
9t9-5.2 said:
That might be the case, but I doubt it. The 340 manifolds they used are the highly sought after high performance manifolds that resemble a header. The 92-early 93 magnum manifolds out flow the late 93 through end of production magnums. The 92-93's have a 2 1/8" outlet vs. the 1 7/8" on the late 93-04's, the 92-93 had a 10 hp higher rating that went away when the smaller manifolds were put in production with no other changes made to the engine.

BTW, I have a pair of the 92-93 2 1/8" manifolds I would sell if interested. They don't have any casting numbers on them, I ground them and all of the rough casting smooth and painted with ceramic high temp paint, but there is no mistaking the outlet size.
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so the early magnum manifolds were the ones better than the 340 manifolds got it. How much ya sell em for?
 
#51 ·
greendak97 said:
so the early magnum manifolds were the ones better than the 340 manifolds got it. How much ya sell em for?
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I don't know if they are better than the 340's or not, I wouldn't think so. The 92-93's are 10 hp better than the late 93-04 manifolds.

I would sell them for $35 + shipping. PM me if interested.
 
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#52 ·
The 340 manifolds flow great for manifolds. People pay big money to get those manifolds on car that they dint want headers on
 
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Discussion starter · #53 ·
Ok so i went ahead and got a set of stainless steel short tube headers which i found for a great deal, only $128. Theyve got 1 1/2 primaries and a 2 1/2 collector. I stand corrected they did make a huge difference. It pulls harder throughout the whole rpm range. I am very impressed. Did anyone else have to grind down gaps in the flange so that it didnt contact the spark plug wire boots? I found that to be a little weird that i had to do that. I got these headers off ebay from a brand called dynamic performance team. Theyre 304 stainless, really nice, gained alot from them. I was just a little disappointed with the mods i had to do to get em to fit right.
 
Discussion starter · #58 ·
Should i have gotten jba or pacesetter or some other american made headers instead? The price was just really good and it said stainless steel thats why i jumped on it so quick. The dpt website said it was in california. Do they just have overseas plants put em together?
 
#59 ·
greendak97 said:
Should i have gotten jba or pacesetter or some other american made headers instead? The price was just really good and it said stainless steel thats why i jumped on it so quick. The dpt website said it was in california. Do they just have overseas plants put em together?
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Yep... They have held up for close to 2 years on my truck now... They arent shiny but they get the job done.... I couldnt afford any american brands... And ill let ya in on a secret.... The american brands aint made here either.....
 
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