abodyjoe
Well-Known Member
what manifolds will fit a 71 duster with a 318 in it? i can get a set of 74 challenger 318 manifolds for free. will they work?
what fits? 71 duster 318 exhaust manifolds?
- Thread starter abodyjoe
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I don't think the driver's side will fit. I'm not 100% sure, though.
abodyjoe
Well-Known Member
its weird the same 340 manifolds fit. you would think the 318 would too.. i just don't know though.
The E body 340 manifolds fit? I wasn't aware of that. The driver's side is slap different.
abodyjoe
Well-Known Member
****, i don't know. i thought the a and e body 340 manifolds were the same.. i don't remember now..lol
Nope. What does yours look like? If it's a bonafide E body, it dumps in the rear. The A body has that kinda snakey outlet that dodges the steering column.
abodyjoe
Well-Known Member
these say they do. maybe the 318 is different.
MRE - 340 Exhaust Manifold Set
Fits: 68-70 340
340 Exhaust manifolds PN#2863549 and PN#2863553
Used on 68-70 A-BODY and 70 E-BODY cars with 340 engine
MRE - 340 Exhaust Manifold Set
Fits: 68-70 340
340 Exhaust manifolds PN#2863549 and PN#2863553
Used on 68-70 A-BODY and 70 E-BODY cars with 340 engine
abodyjoe
Well-Known Member
these also say they fit both too.. these are whats on the dart..
https://www.ebay.com/itm/1372182175...v1Kk_4FcaxN3J3GeBhoHbT-8lJhNLF0pZhiO8IobmKnNk
https://www.ebay.com/itm/1372182175...v1Kk_4FcaxN3J3GeBhoHbT-8lJhNLF0pZhiO8IobmKnNk
Yup. A body. If those fit the E bodies too, it's news to me.
Look at the exh manifold casting list on the board. Pass side is no issue with a center dump. I believe you are good to go with the E body Manifolds.
Yes, buy those $850 piece
Yes, buy those $850 piece
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If they look like that you are good to go, but by 74 I think they changed. Not to worry, as a friend of mine used to say "if they are free, they're for me". I'll look up the casting numbers for a 74 Challenger a bit later.
doug 371
Well-Known Member
Got pix of them?
$250 plus the ship. I sandblasted them and was going to install on my Duster but went with headers instead. Have a coat of Thermotech high temp aluminum to keep from rusting. The drivers side had a small crack near the center flange, friend of mine ground it out and welded up.
abodyjoe
Well-Known Member
those 318 manifolds?
340.
abodyjoe
Well-Known Member
what are they the 72 up?
Vaanth
Well-Known Member
In general, exhaust manifolds from many small block applications fit the right side, but the left side is specifically A-body, with a few different possibilities. The following listings include various exhaust manifolds that can fit. Variation highlights are listed, but smaller variations occur over the years and applications. Mating head pipes and/or attachment generally interchange within specific body types, but various "tweaking" might be needed. The early 340 exhaust manifolds have specific head pipes, particularly for the right side.
This fitment listing is generally the same for any 1967 - 1976 A-body.
318 Exhaust Manifolds
Right side:
- 1967 - 1974 A-body, noting the following:
- Heat riser changes, mostly pre 1970 and post 1969
- Later stronger castings
- 1975 - 1976 A-body, noting the following:
- With or without air pump provisions
- Casting ribs
- Heat riser
- 1967 - 1974 B-body, noting the following:
- Heat riser changes, mostly pre 1970 and post 1969
- Later stronger castings
- Slight difference for 1973 -1974 Road Runner
- 1975 - 1976 B-body, noting the following:
- With or without air pump provisions
- 1970 - 1974 E-body, noting the following:
- Later stronger castings
- 1967 - 1974 C-body, noting the following:
- Heat riser changes, mostly pre 1970 and post 1969
- Later stronger castings
- 1975 - 1976 C-body, noting the following:
- With or without air pump provisions
- 1967 - 1974 A-body, noting the following:
Left side:
- 1967 - 1974 A-body, noting the following:
- Slight difference pre 1970 and post 1969
- Heat stove provisions 1970+
- Revised 1973 - 1974 heat stove provisions
- 1975 - 1976 A-body, noting the following:
- With or without air pump provisions
- 1967 - 1974 A-body, noting the following:
273 Exhaust Manifolds
Right side:
- 1967 - 1969 A-body, noting the following:
- Heat riser is different than 1971
- 1967 - 1969 B-body, noting the following:
- Heat riser is different than 1971
- 1967 - 1969 A-body, noting the following:
Left side:
- 1967 - 1969 A-body, noting the following:
- Slight difference pre 1970 and post 1969
- 1967 - 1969 A-body, noting the following:
360 Exhaust Manifolds
NOTE: 360 manifolds typically have larger internal porting, especially the left A-body version.Right side:
- 1974 A-body
- 1975 - 1976 A-body, noting the following:
- With or without air pump provisions
- 1972 - 1974 B-body
- 1975 - 1976 B-body, noting the following:
- With or without air pump provisions
- 1974 E-body
- 1971 - 1974 C-body
- 1975 - 1976 C-body, noting the following:
- With or without air pump provisions
Left side:
- 1967 - 1974 A-body, noting the following:
- Slight difference pre 1970 and post 1969
- Heat stove provisions 1970+
- Revised 1973 - 1974 heat stove provisions
- 1975 - 1976 A-body, noting the following:
- With or without air pump provisions
- 1967 - 1974 A-body, noting the following:
340 Exhaust Manifolds
NOTE: 340 manifolds typically have larger internal porting 1968 - 1970 were larger and flowed better, with the right side uniquely shaped. The left side changed for other body lines in 1971, but largely remained the same for the A-body version.Right side:
- 1968 - 1970 A-body, noting the following:
- Large difference from later version, flat pipe flange
- 1971 - 1973 A-body
- Similar to 318 with larger porting
- 1971 - 1973 B-body, noting the following:
- 1972 - 1973 E-body
- 1968 - 1970 A-body, noting the following:
Left side:
- 1968 - 1973 A-body, noting the following:
- Heat stove provisions 1972+
- 1968 - 1973 A-body, noting the following:
The right side from the 1974 Challenger will fit. The left side will not fit.
The following image is the 318 left manifold style used in the 1974 Challenger and other non A-bodies:
The following image is the 318 left manifold style used in the 1971 Duster and other A-bodies:
The 340 exhaust manifolds were originally designed for the 1968 A-body and that style, for which the Mancini reproductions are made, was used in 1968 - 1970 in A -bodies with 340, and in 1970 E-bodies with 340. In 1971, the right side changed to the smaller, simpler, but more restrictive exhaust manifold for all 340s. The left side also changed for non A-bodies, but the A-body retained the large, better flowing style due to the space situation on that side in the A-body engine compartment.
340 T/A and AAR cars in 1970 have the same manifolds as the 68-70 340 a-bodies. All other e-body 318 340 and 360 cars the drivers side is different
In short, you want a 1967 to 1974 A body 273 or 318 drivers side manifold. The earlier the cleaner. On the passenger side most any 273 or 318 center dump exhaust manifold will work. I assume you want to run the factory exhaust to start. This leaves out all 340/360 exhaust manifold, unless you run the rest of the 340 exhaust system.
abodyjoe
Well-Known Member
anything i can get my hands on will work.. 340 manifolds if i find them affordable i'd do, if not 318 manifolds will be fine.. there is no exhaust on it at all so that doesn't make a difference either/
JDMopar
Well-Known Member
The 70 model 340 four barrel cars also had the 340 HP manifolds like used on TA & AAR's and in A bodies. In 71, they went to the rear dump drivers side manifold on the 340 cars and retained the rear dump drivers side 318 manifold throughout the E body run. Also starting in 71 on 340 E bodies, they used a center dump passenger side manifold with a 2.25 flange.
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I got some on a 69 273 valiant. They should work. I have a flat rate game box that they should fit inside.
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