Search results for query: 340 manifolds

...side. Then find a foundry to cast them and a machine shop to machine the surfaces and then we'll talk. Someone already reproduces the 340 manifolds and you can find used ones at swap meets although they aren't cheap nowadays. THere are also threads here telling about a combination of stock...

+1 on 340 manifolds and the brake/suspension upgrades. i'd run stock manifolds and use that "header money" in the budget for brakes and suspension.

Apparently not. As far as I can tell, they downsized them with the 360 because the 360 had a lower HP rating, since it was made during the fuel crisis years. The 360 manifolds I've seen are 2 5/8" ball connectors, which I think used 2.5 inch pipe? The numbers on these manifolds for sale are...

68 340 manifolds can fit an early A; may have clearance issues with the steering joint. Different ways to solve this, but I switched to a power steering column (shorter shaft) attaching the shaft to the gearbox with a Firm Feel adapter. This moved the joint back out of the way. Passenger...

340 or 318 manifolds?

here's an older video... this stock 340 is nice stock cam, smooth idle, quiet through exhaust manifolds, good mileage and nice street performance. certainly not for the quarter milers.

I have a very nice complete six-pack setup for sale. The carbs have been rebuilt, including new diaphragms. The fuel lines and linkage are complete. I have a spring kit for the vacuum pods. I did save all the old components for the carbs that were replaced. This includes the air cleaner...

Oh I agree, gotta do what you've gotta do. I wish I could find the thread, it's more that a custom head pipe has to be made and it's such a tight fit around the steering that it requires some skill to fabricate, especially if you want it to perform with any reasonable expectation of being...

Looking for a set of usable 340 manifolds for a driver car. Would prefer 68-71 but 72-74 are fine Don’t have to be perfect just not cracked or extremely rotten. PM if you have a set with a price. Thanks

Funny you ask im doing a T/A tribute so doing this exhaust which should be factory T/A challenger bend style since it uses the same manifolds to connect to A-Body T/A Exhaust System (1967-1974)-

I believe Mancini's were offering repop versions of the 340 manifolds, which port size etc will fit best imho. I'm just taking off manifolds from my grandson's 273 to put headers on .

Just be aware that the early 340 manifolds cost a lot more than they did 15-20 years ago. I sold mine for enough money to pay for the TTI headers.

IMHO you are always better to use the best manifolds for the car you have. There is a reason they were made specific for your car. Generally the older the better, exhaust manifolds got pretty ridiculous as time went on. You can buy ready to go exhaust and use factory tips and hangers...

My FSM left this number out. 1970 340HP manifolds. Best I could come up with (see attached) but is for different something.

500hp? wasn't the goal 12's and looking stock? Never said or was making a point that LS and 340 manifolds are same or 500 hp with manifolds is a piece of cake, talk about nit picking. I just googled manifold vs header to give the OP some idea what he might expect and was surprised there was...

Also, any names or links? Thanks!

The Later 340's lack compression, cam, and cylinder head. The stockers have more restrictive exhaust manifolds. I'm sure there are differences in distributor timing, carbruation and intake as well. The 73's did have electronic ignition and Thermoquad carbs which can be a plus. 240 net...

Hi Folks Well, I finally broke in my fresh 1971 340 build after 4 months. This engine is going into my Cruiser 1971 340 Demon this spring (hopefully). Here's the rundown on the build........ .040 Cast Silvolite pistons .018 out of the hole. Piston clearance .00075 Hastings moly rings...

92-3 ?? Dakota RT 360 Magnum 2 1/2 outlets very similar in flow to 68-71 340 manifolds

Harold started making them. Laysons has them available now. One step above 340 manifolds. (one small step) They exit in a strange place and you had better have a good exhaust shop nearby to get them hooked up. Search "Spitfire" here n the site.

Hate to get sucked in, but I can also say, I like manifolds. As a matter of fact, I only put headers on one side of the 64 Barracuda and pulled it off. Had other cars with headers and hated them. They are at the dump with the side pipes, traction bars, Holley carbs, and everything else I did...

Agree there. I was talking about the 340 stock manifolds. May have got out of sync with the thread.

And they make little difference unless you wind the crap out of the engine

Heat expansion in the length of the manifold. Expansion is X thousandths per inch, so on say 3" the expansion will be very little over #s 3 and 5, and 4 and 6, while #s 1, 7, 2 and 8 will be considerably more length change. I believe the conical washers let the manifold move a bit under them so...

...said, here's some additional thoughts on suitable exhaust manifolds. To me I basically have three options: 1) '02 Magnum manifolds, 2) 340 manifolds, and 3) 318 manifolds. The magnum manifolds have significant physical interference issues with factory A-body power steering, steering columns...

I didn't mean cast manifolds, I was wondering about some kind of tubular manifolds made from header tubing into a log style tubular "manifold" with an outlet similar to a regular cast type manifold. I certianly understand all the steps to produce cast manifolds.

Sold

Never a waste of a stroke.

Thanks for link. They are 1969 X heads, the manifolds for the 273 are 1967. Thanks

It would have power wise for sure but still cast crank etc should have also come with a bigger then the 340 cam 340 will always be the Baby Hemi Forged crank full floating rods windage tray hp manifolds and 2.02s =big block killer