Trernsmersherns & merflers

"RamblinRover Luxury-Yacht" (ramblininexile) 10/19/2018 at 11:40 • Filed to: None

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Can any of you reprobates think of a reason that a Mustang 289 H-pipe wouldn’t fit a 289 Galaxie? I think it would hinge on whether the small case Cruise-O-Matic is bigger than any gearbox available in V8 Mustangs. Which seems... unlikely.

The big reasons are that Galaxie whole exhaust packages that are available are (a) h einously expensive, (b) not actually configured as stock(!), (c) give no option for preferred mufflers, (d) not readily available in dual for smallblock anyway, and (e ) Mustang H-pipes are hella cheap, and if I buy one and two mufflers, I only have to get the overaxle pipes bent up. Less overall than a whole exhaust package, most likely, and what I actually want - and more like stock!

benjrblant > RamblinRover Luxury-Yacht 10/19/2018 at 11:52

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Is the frame comparable?

TheBloody, Oppositelock lives on in our shitposts. > benjrblant 10/19/2018 at 11:56

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Yeah I think the only issues would be where the crossmembers sit on each frame if they’re different ?

TheTurbochargedSquirrel > RamblinRover Luxury-Yacht 10/19/2018 at 12:00

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Unibody differences? 

Future next gen S2000 owner > RamblinRover Luxury-Yacht 10/19/2018 at 12:02

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Straight pipes don’t have an H though.......

On a serious note though, the Mustang is a unibody while the Galaxie was BOF IIRC, y ou may run into frame issues.

RamblinRover Luxury-Yacht > benjrblant 10/19/2018 at 12:06

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Frame under the Galaxie looks like this:

The crossmember is heftily scooped out like this:

Here’s a ‘65 Mustang:

And here:

From what I can tell, it *should* work.

RamblinRover Luxury-Yacht > Future next gen S2000 owner 10/19/2018 at 12:08

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The only potential issue I could see would be that the Mustang H-pipe might be narrower, which would have it wind up a little lower. See here:

https://oppositelock.kinja.com/1829866947

dogisbadob > RamblinRover Luxury-Yacht 10/19/2018 at 12:10

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Get something that’s 304, so it will never rust again :o)

RamblinRover Luxury-Yacht > TheTurbochargedSquirrel 10/19/2018 at 12:13

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The Mustang’s crossmember is slightly different, but in what ways it’s hard to establish. It’s drawn deeper, and is narrower overall, but it may have to be drawn deeper as I think it’s taller. Might end up with the pipe in the same relative position vs. the engine, but technically further down from the crossmember than the original Galaxie Y-pipe.

Shafer’s Classic Reproductions are about the only ones with authentically set up dual exhaust, but I don’t have an FE block, so....

RamblinRover Luxury-Yacht > dogisbadob 10/19/2018 at 12:18

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I’d consider that, but I have yet to see an H-pipe that’s S/S for the stock manifolds, and by the time I’m buying stainless headers, there is, shall we say, a bit of scope creep.

lone_liberal > RamblinRover Luxury-Yacht 10/19/2018 at 12:30

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If it’s the same engine and similar transmission then I’d think there would be a good chance you could get away with it as you’d think they’d have to sit in the cars the same way but cars from back then are always weird about what was standard across the board and what was unique to a car.

RamblinRover Luxury-Yacht > lone_liberal 10/19/2018 at 12:36

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I have been told a C4 transmission is a drop in, and there are enough Mustangs around with those... Particularly, since they started offering the C4 instead of the MX CruiseOMatic in ‘64, which is the same platform as my ‘63. I don’t know if the crossmember was any different between the smallblock and the midblock, though, and it was midblocks that shipped with the MX.

The issue appears partly to hinge on where the crossmember scoops are on the Stang crossmember (narrower, deeper tunnel) vs. the the Big Ferd. Since, at least, I don’t see any transmission clearance issues. About the worst I’ve seen so far is that I might have to monkey with the e-brake cable equalizer.

RamblinRover Luxury-Yacht > TheBloody, Oppositelock lives on in our shitposts. 10/19/2018 at 12:36

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https://oppositelock.kinja.com/1829866947

Future next gen S2000 owner > RamblinRover Luxury-Yacht 10/19/2018 at 12:39

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I think it might work. A bit of some massaging possibly.

lone_liberal > RamblinRover Luxury-Yacht 10/19/2018 at 12:48

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It’s been many, many years since I had my Gran Torino and its weird combination of 351W 2V and C6 transmission but I think it should work with a few modifications like the e-brake cable. If it just doesn’t fit the way it comes you can always try using it as a starting place and try cutting and welding it to fit. 

RamblinRover Luxury-Yacht > lone_liberal 10/19/2018 at 13:01

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Yeah. My perspective is that if an h-pipe that fits a 289 already and has the right ends is only $95 bucks because it’s mass-produced like mad, it would be stupid to try to have the muffler shop make one - and the h-pipe supposedly helps with power and tone so I wouldn’t want to go without. Even if I have to tweak it a bit, the seams and bends are going to be cleaner in the main part of the pipe anyway.

An authentic dual 2" system costs $700. A non-authentic fits-like-ass system costs $400. Without shipping. Both would require adapting to a 289 anyway, so call it $95 for downpipes to adapt minimum. Which I wouldn’t need with the h-pipe, as far as I can tell, as far as the manifolds are the same. Which I think they are, and will try to verify.

$795 - $95 h-pipe - $200 Porter mufflers = up to $500 and still ahead for two connecting pipes and two tips and some hangers at the local muffler shop, which I don’t expect them to hit.

TheBloody, Oppositelock lives on in our shitposts. > RamblinRover Luxury-Yacht 10/19/2018 at 14:37

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Okay, yeah I think that *should* work. 

RamblinRover Luxury-Yacht > TheBloody, Oppositelock lives on in our shitposts. 10/19/2018 at 15:03

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Best I can tell, I’m dealing with this:

I went out and made some measurements. I think the righthand pipe will dive completely within the righthand “scoop” in the crossmember, and the lefthand pipe will, mostly. Most likely at a height where it’s missing the crossmember anyway. Worst case, I put a little English in the lefthand pipe and go.

Rusty Vandura - www.tinyurl.com/keepoppo > RamblinRover Luxury-Yacht 10/19/2018 at 15:32

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I rather resent being called reprobate when my behavior hardly rises to that level.

RamblinRover Luxury-Yacht > Rusty Vandura - www.tinyurl.com/keepoppo 10/19/2018 at 15:39

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I would offer that reprobate more often has to do with a lack of something than an excess of other somethings - a standard failed to live up to rather than a maximum exceeded - though granted that’s mostly semantic.

Rusty Vandura - www.tinyurl.com/keepoppo > RamblinRover Luxury-Yacht 10/19/2018 at 15:51

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And far be it from you  to bandy semantics.

RamblinRover Luxury-Yacht > Rusty Vandura - www.tinyurl.com/keepoppo 10/19/2018 at 16:00

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What, me? Amuse myself with semantics? I would never.