Search results for query: 340 manifolds

The head pipes and front extension pipes don’t meet up. I’m taking my 67 to a shop to have them connect the two. 67 273, TTI head pipes and Summit 2.5” kit.

that would be my choice for the set up/parts that you have to compliment it. with a 3.55 if you put wings on it that early a would fly. put whatever exhaust you have on it while you save for headers. no sense in making a half step with whatever combo of manifolds for minimal gains.

This looks a little funny. Could you snap another photo please?

I agree and I’m with Dan on this. I’d also say no matter what test is out there saying how great they are, I’d only use 340 exhaust manifolds is if I had a set collecting dust on the floor. The MP book suggests using one 340 manifold on one side and a Magnum manifold on the other side. At...

67-70 A Body 340 HP Exhaust Manifold. No cracks or repairs. No heat riser.

...you have the time, money and inclination to test fit a bunch of different manifolds, you could probably find something that works. 3- 340 manifolds are NOT hard to find. i don't know why you keep insisting on pushing this fallacy. look, dan, right now, right here, on this forum's very own...

Well, you KNOW it can't be twelve, as there is no way the cup washers will fit under the sleeve nuts on the second and fifth bolts with 340 manifolds. Some of the confusion may come from the fact that the 273/318 manifolds used washers under the four outboard bolts/studs, but those manifolds...

And they runs 10s and 11s just like that

And 72 manifolds aren't even the good ones.

A Very, very nice matched set of 340 hp exhaust manifolds that have been stored in a garage since 1996. Has not be restored, no cracks has a June casting date and is correct for early 1970 production cars. Only thing is the heat flap was removed and a bolt was used to seat the hole, but can be...

That test was pointless. The stock cam doesn't even have lobes (exaggeration, but close) so the exhaust isn't the limiting factor and this didn't show anything. They should have done the test with the 380 HP crate motor not the 300 HP crate motor. Completely worthless test. If it was me, I...

I've got a hypothetical for you. Suppose a 360 in 1968, with 10 to 1 compression, good 2.02 heads, pretty good camshaft, good exhaust manifolds, 750 or therabouts thermoquad. And then, a few years later, to meet smog regs, they disco"ed the 360, and brought out a brand new 340..... with a...

Wix filters and 340 HP manifolds

Yeah, same here . I realize that any difference would be slight, but I have the option of the 72-73 340 or a set of 75-76 360 manifolds.

...started. now i remember why i bought my mustang. what a pain in the ***. lol. i swear tti headers were way easier to deal with compared to these 340 manifolds. engine is out. I'll pull the trans tomorrow and start on the front end stuff. hopefully I'm driving it home Saturday or sunday.

...is smaller with a ball socket type flange. Im pretty sure this was the case on the 71's as well. If you want the big 2 1/4" opening on both sides you need to shell out ridiculous money and get some 68-70 340 manifolds. For a mild street driver I would send the 72-3 manifolds. They flow decent

how do you like the performance of your set up? are you happy with your cam choice? your current set up is almost identical to what i will be doing except mine is an automatic

Just out of curiosity….are the exhaust manifolds header compatible on a 340 vs Magnum 360? Meaning can you swap headers from a 340 to Magnum?

...worth it alone. I have run the 65cc OOTB eddy RPM’s and run 12.3. My compression was about 9.75-10.0.with a solid flat tappet and stock 340 manifolds and a massaged stock 68-69 stock 340 intake with a 800 eddy AVS. I’m at 410 ci. The reasons to go aluminum, weight, starting with a better...

Based on the pictures on the website, the only iron Magnum head Hughes lists doesn’t appear to have the needed material to seal 340 manifolds. Plus they have the Magnum intake bolt pattern and would require the extra cost of redrilling them if you wanted to run an LA intake. The aluminum heads...

340's are golden.......And, their manifolds have no studs :):)

What year are you working with? EDIT: 2863549 and 2863553 are the correct manifold numbers for your application. @70Pantherpink

Shipping a fortune. Hughes sells new Magnum heads prob sufficient cast iron around ports for 340 manifolds. So you can spend your way out of head aches buy new Magnum heads LA intake bolt pattern likely 340 exhaust bolts on no adapters improved castings that don't crack quench chambers erc...

To much money for what they are. Everyone thinks that because it's a 340 or 340 part that it's worth a gold mine

I just bought some do you have any tips on install. Thanks for any thoughts. 71dart

i think the real question should be, would an Avanti beat either in the 1/4? What about a Buick?

IMO, knowing what I now know thanks to those experienced with this endeavor and as expensive as heads, headers and even factory 340 exhaust manifolds are anymore I'd lean more towards either spacing the stock manifolds out or headers.

thank you all for the info.when you says logs u mean stock 340 manifolds im guessing.Its a mildly built 318 nothing crazy i really just like the exhaust sound with headers.all of my mopars seem to get 4 barrels,headers and cam lol.any of you know anything about the summit sum-g9140 it shows...

Set of hp manifolds,drivers side has a repair,pass side is nice $430 shipped in the usa pm if interested, postal money order only

...put the joint far enough back to clear the manifold. I ran the outlet pipe between the torsion bar and the frame. Two and a quarter inch pipe. Barely fit, but it did. Larger pipe probably would not. Have no idea if a power steering box would work with 340 manifolds. (I have TTI headers...