Search results for query: 340 manifolds

Never understood why folks look down on a 318. If a 302 ford and 327 Chevy can make power why not a 318? Yes it has smaller heads (in most situations) Low compression (unless you got an early one) and probably has a 2 barrel intake and shitty exhaust manifolds (performance wise) but rebuild it...

Probably so. 73 340's ran pretty good but they were pretty anemic compared to the 68 and newer ones. 73 was the last year for the 340 and everything got a 318 or 360 from there. The 360's were built like the 340's of that era. Heads, cams, manifolds, etc were interchangeable. The 360 would...

I have seen threads on this forum with this discussed before and I believe the EQ heads have extra casting material around the ports to allow 340 manifolds to seal. The magnum heads from Hughs may also have the extra material.

For example... my 318 (4bbl w/summit cam) with 2.76's, stock torque converter and exhaust manifolds turned the same time and mph in the 1/4 mile as a factory '73 340 Duster with 3.21's. I was very happy with that :) Cruise 75 mph all day if I wanted to also :)

Glad it worked for you, but no engine would EVER leave my shop with the intake sealed with permatex sealer. Now on the china walls, yes. But the OP is talking about doing away with intake gaskets between head and manifolds. That's a NO from me

In a ?

...XR280HR-10 (2,2200-6,000rpm) Manifold - LD4B Holley - Dominator? Carb 750 Trans - Rebuilt 904 2,500 stall. Exhaust manifolds - 72-73 340 manifolds Exhaust - 2 1/2" TTI head pipes, full TTI exhaust with turn downs out the back, Dynomax Turbo mufflers. (The standard TTI kit.) 8 1/4 rear end...

You read my post wrong. What I said was, I did not notice much of a difference between the 318 and 340 until I added the headers and 2.5" exhaust. I had 318 exhaust manifolds on it at the time. Night and day once I installed the proper exhaust. The 318 gave me 14 MPG while the 340 was 10 MPG...

Will Sanderson shorty headers for 340 1970 dart swinger with power steering? Friend found a set cheaper than manifolds was was thinking of putting them on her car. Not race car, street car cruiser.

I have very little in it, $150 to fix would be worth it to me

Worth it is an opinion, depends on if you plan on doing more mods in the future. Why not use the 74-76 360 A-Body manifolds? They are much cheaper and flow pretty well... [FOR SALE] - 1972-74 OEM 340/360 HP exhaust manifold set

Here's one site that has reproductions. No heat riser that I can see though. 1968-71 340 Exhaust Manifolds Duster Dart Plymouth Cuda TA AAR Challenger GTS 70 – Mopar Hoods Here's the option I chose. Worked out great for me. https://www.ttiexhaust.com/TTi34025.htm#pricing

Damn, was hoping you found a solution with the headers. I have Dougs installed and am about to attempt to install the column in a couple weeks. Glad you found an overall solution for yourself. Sometimes it's best just to do what it takes to get it back on the road.

I just used 308 style heads on a 318, tapped and blocked the air ports and installed 68-70 340 manifolds with no sealing issues whatsoever.

I have the best of both worlds. My '69 Dart which has Doug's headers on a 340, has a high torque mini starter. It works fantastic and clears the headers by quite a bit. Definitely the way to go in this case. My '69 Valiant which is a 318 with stock manifolds has a high torque regular Chrysler...

...depends on engine combo. If you go with TTI exhaust with manifolds then decide later want headers you can pull head pipes out of H pipe and swap in shorty pipes to hook to headers. Thats what I did I used to run 340 manifolds then when orig eng got replaced with stroker eng switched to...

You also have to grind on Eddie 318-340-360 RPM aluminium heads and manifolds. I did a little on each, so as not to have to grind to much in heads or manifolds. It is due to the fact that they used the same casting as late heads where there is a threaded port below the manifold for smog cheap...

Is anyone reproducing the '68-'70 340 Exhaust Manifolds? I'm looking to buy a set for an upcoming small block build. I don't want to use headers. Thanks

A little off the original point... I have been curious for a while which if any factory 340 exhaust manifolds flow better. Or are they all pretty much the same.

Showoff. lol You should hire out to detail engine bays.

...on my Barracuda. So put some on my fox body and they sounded terrible. So swapped on Dynomax Super Turbos on the fox body which turned out great. With 340 manifolds 2 1/4 outlet going into 2 1/2 TTI head pipes, I ran that combo once, something like a Dynomax Super Turbo should get rid of...

...if it was me; I would get the 340 ones, cuz later, to get your power-numbers, you will for sure need headers, and then you can sell the 340 manifolds for the same or more than what you paid for them. Whereas, selling the less popular logs, bought from a store, you will take a hit on them...

Minty Restored 1968-1970 340 High Flow HP Exhaust Manifolds. Lightly bead blasted and coated with Eastwood Manifold Paint. No damage ready to install. If your after the correct look in your Engine Bay these are for you. Asking $1200 USD plus postage. Will accept Pay Pal Friends and Family or...

I bought a pair of '68 340 manifolds at Carlisle in 1995 for $175. That's about $350 in today's money. Given thirty years of diminishing supply, prices are right about where they should be. Stuff costs money.

So would a 1970 340 be the right application for this size? Again I have the dimensions but everything is based off application. Also I noticed that the opening in the manifold does not have any lip. It’s all flat. Is that how the stick manifolds are as well?

I'll do that. I don't mean to disturb things, it's that I like to read and research things out and sometimes I don't ask questions the correct way

Performance aside, the LD is one of the prettiest manifolds for it's day. If only Mopar would have contracted it for the 340 production line like Chebby did with the Winters foundry for their performance engines.

Here's you a nice set. If you want em, I'm sure @toolmanmike can open the thread back up for you. https://www.forabodiesonly.com/mopar/threads/340-hp-exhaust-manifolds.549227/ :lol:

In an A body? I don’t think there are any 360 manifolds (driver side) that fit an a body. That being said, I bet the 340 hp manifolds would show +- 10 hp on a mild 360 over the 360 manifolds, and both would be down 15-30hp on a good set of headers.

...the stamps wore out? Just like 340 manifold were reproduced then stopped. Don't know but I think people will pay up for reproduction 340 manifolds and heat shields. I think buyers are out there. As far as cost, buy heat shield for hobby car probably last forever on car thats only driven...