Search results for query: Magnum manifolds

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  1. 273

    318 build #2 "cost minded" for the '74 Duster

    If I was to run a real cam one with a good amount of overlap to me long tube headers are mandatory to work with the overlap. With cams with a moderate or lesser amount of overlap I highly doubt there's a huge difference between manifolds but guess we won't know until someone does a test. But...
  2. MOPAROFFICIAL

    Valve cover oil leak

    You can do this with bolts but it's easier with studs. Arp studs that you would use for say... a Pontiac oil pan application 'hint hint'. You will want to use a cork gasket if stamp Steel and a composite gasket or even steel impregnated viton like a magnum... what you do is you put a little...
  3. fishmens67

    1 5/8 headers

    lol The first engine I put in my 67 fastback was a 68 383 magnum with hp manifolds, with matching convertor and torqueflite. that combo and a 4.57 sure grip was unbeatable by any stock a-body 340. lol a couple years later the 383 got 12.1 comp , ported 906, 557 purple, street dominator / Carter...
  4. rumblefish360

    Strip Dominator and M1

    Correct! Correct! Holley first. Correct on both. The altered bypass was modeled after the Magnum set up. Why? I have no idea! Stupid IMO. Correct! Very close copy! I agree! They went to war with Edelbrock over some issue I can’t remember. But….. Holley got really pissed off at Vic and...
  5. A

    Magnum exhaust manifolds ball-flange to LA pipes?

    iirc, there was no dakota RT in the 92/93 years that these manifolds were produced. I just know them by part numbers, but they do have tue 2 1/8
  6. MopaR&D

    Honestly...how good was the 318...mpg / durability / hp

    I had a 1988 Chrysler Fifth Avenue, roller-cam 318 that was bone stock when I got it and very well maintained. I got rid of the Spark Control computer and converted to conventional electronic distributor and an old MSD box I got for free from a friend. Put on a Performer intake and Thermoquad...
  7. tubbedamx

    [FOR SALE] Pair 340-360 Exhaust Manifolds 2 1/4 Outlet

    Pair 340-360 Exhaust Manifolds 2 1/4 Outlet. With downpipes Removed last week from my 67 Barracuda w/360 $350 plus shipping PayPal accepted Shipping from Boise Idaho 83709 Excellent shape, excellent fit, no rust. Ceramic coated but has flaked in the hot spots Driver side: 3614368-2 (72-74...
  8. pittsburghracer

    Mopar P4532900 head info needed

    I told him I can’t get into flowing them right now but for whatever good it would do I could look it over. After hearing what he paid for them I sure wish he would have called me first. It is for a magnum combo with I guess a hydraulic roller cam setup. He supposedly bought them from someone...
  9. MopaR&D

    Front "China wall" sealing issue on SBM

    Well thanks to a fellow FABO member @416stroker it's obvious now why I couldn't get it to seal. It's not a simple issue of my methods being wrong because like I said I've swapped intake manifolds on small blocks at least 10 times and only ever had a sealing issue on this engine. It turns out...
  10. Treblig

    Announcement

    I ran into the same problem with 340/magnum exhaust manifolds. Over many years it became too much work for too little money. I really enjoyed while it lasted!!!
  11. 67Dart273

    360 sb la ?

    Year make model. If you are working on a 5.9 Magnum please call it that. Yes, a 5.9 is 360, but it is not a 360. It is a Magnum 5.9. As others said they changed the neck size at some point. What intake do you have? Someone may have swapped intake manifolds, and some aftermarket...
  12. fishmens67

    400 hp 5.2l vs 5.9l Magnums

    To manipulate my HP with less gearing and convertor for the few times I get the car out on the street, my track day's are long gone. My old buddy traded his Chevy 383 for a 496 in his 70 Nova. lol Him and I and a few other friends did the AHRA thing back in the day. It's been dead for awhile up...
  13. 33IMP

    Can I use B or C body manifolds fore better flow on my sleeper GTS?

    ...hipo 440 manifold, maxwedge manifolds, and headers. Headers won, obviously, the max manifolds did very well, the normal 68-70 magnum manifolds, not so much. I don't remember the numbers, anyone curious will have to look it up. But as said above, the more power/displacement you have, the more...
  14. 273

    318 build #2 "cost minded" for the '74 Duster

    There is another dyno test between manifolds and found that best combo was one 340 and one 5.9l forget which ones but here's non magnum manifold and header shoot out Installing Exhaust Headers Into 300hp Crate Engine - Mopar Muscle Magazine
  15. toolmanmike

    Oh dear God! 318 stroker

    Ah, what the heck, build what ever you want. Do your homework and search for the proper parts. I have read about some strong 318/390's here. Just a few. Most aren't that attached to the original Teen though. Remember, if you modify it it won't be original any more. Pull it, stuff it in the...
  16. 4mulas

    66 vs 67 Dart

    No offence, but you ask, and several people tell you, but now You still have to check and measure between a 66 and 68 ‘to make sure’. Why bother asking to begin with? Many people here have and share a lot of knowledge but it feels like a waste of time when it doesn’t really get used. Early a...
  17. 273

    Cheaper than dirt 318 build

    Here's a 282 hp @ 5000 rpm with a xe262h 4bbl headers on stock low cr longblock 318 Long Block Bolt Ons - Tech Articles - Mopar Muscle Magazine here a bunch of 318 related articles
  18. 273

    Engines with lack bottom end power?

    here's all the 318 ones +
  19. Professor Fate

    1965 MOPAR, 273 Exhaust Maifolds

    And this is what happens when you try to tighten it down. This came to me because the guy couldn't get rid of a bad exhaust leak, no matter how hard he tightened it down. Hmmm... To illustrate the point, here is a head with air injection bosses. I put on the ('64-'66) early A manifold and...
  20. rumblefish360

    318 build #2 "cost minded" for the '74 Duster

    ...make more power once you out there exhaust system on. They stated no collector extentions on the headers. All on a stock engine. No Magnum manifolds tested. So I’d still like to see what that deal is worth. Anybody? The factory writings stated the best exhaust manifold combo was the drivers...
  21. 273

    anyone ever flow test 383 A body manifolds say vs 383-440 hp manifolds

    ...hp difference. There's been dyno comparison between hp and standard manifolds with no big differences. Same between 340/360/318 and magnum manifolds was like 5hp even shorty headers don't help much need long tube collector to make a decent difference especially once you start going with...
  22. ValerianMagnum

    Ported LD4B :(

    Bought a rare LD4B for my 318 ( 1971 casting ) and a bunch of other parts / engine gaskets / copy of an edelbrock air gap / 650 dp carb / 5.9 magnum exhaust manifolds/ dual exhaust set up .............* My big Question is unfortunately the LD4B is massively ported to the 340/360 gaskets , i...
  23. toolmanmike

    Ported LD4B :(

    LD4B ? THe previous owner should have bought a LD340 instead of hogging out a LD4B.
  24. rumblefish360

    Did the 1979 Lil Red Express come with an air pump?

    During testing, the air pump cooled the exhaust gas and somehow it reduces the toxic fumes. I don’t know the science behind it. A catalytic converter doesn’t need an air pump to remain clean and clear to do its job. It needs a properly tuned carb. The aftermarket (check around Summit Racing)...
  25. Rapid Robert

    which ex gasket set to get

    EQ aftermarket magnum heads/magnum ex manifolds. thank you for your time. RR
  26. rumblefish360

    Small block mileage

    2-3 mpg worse. However! I did manage 20 out of my 360. It was a ‘79-360 in a Magnum, with a OEM 4bbl intake, 600 cfm Edelbrock, MSD 6, dual exhaust off of the manifolds, a 904 & 2.76 gears on 26 inch tires. A 318 is good for another 2-3 mpg’s in a lighter vehicle. The Magnum weighed in at...
  27. Professor Fate

    LA 340 Intake Manifold

    Those are the generic Chinese Air Gap manifolds that I spoke of- they are sold under a number of different names and vendors- search for your best price. They fit both LA and Magnum heads, so if you do go the Magnum route down the road, you don't have to hunt down another manifold. They work...
  28. AJ/FormS

    86 Black Roller 318, swap/interchange into 72 318

    340 Forged cranks are balanced for heavy forged pistons. If you use one with 318 pistons especially hypers, it's gonna cost heavy dollars to balance that up. IIRC those 340 pistons were around 719grams versus like 550 on the stock 318s. Hypers would likely be less. Save some cash, use the 318...
  29. W

    Truck manifolds on Dart Sport?

    As I am loathe to grind, cut, or hammer things out of shape, maybe I'll have to spring for a set of quality headers after all. I've heard that Doug's and TTI are good, but haven't researched enough to see which of them (if either) don't require removing the steering link or putting on a costly...
  30. ValerianMagnum

    Could this idea work ? Did other guys did this ? 318 infos

    ...storage and a 360 2bbl carb and adaptor... i really would like to run a dual exhaust system with the fury and good manifolds or even magnum manifolds / headers, im very inspired by little simple mods like 318willrun s pocket porting . I like the idea of running small ports and small valves...
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