Slant 6 Long Ram?

 The things you find on Craigslist...

https://detroit.craigslist.org/mcb/cto/d/richmond-1960-plymouth-wagon-rare-long/7162164275.html

I think I'm in love. That is just so beautiful and perfect. Peak resonance at... 1500rpm? Perfection.

Gorgeous.

The fact that the pictures were pictures of a screen give me pause.

Couldn't this be considered a slant-6 cross-ram? Still hawt though.

I think it's less like a cross-ram and more like a mess.

I just realized how much that 180° change in direction would berk up the flow of the fuel to half the cylinders. 

So much that 100hp in a 4000lb wagon is... what it is? 4% worse? 

I've been fixing up a slant 6 barracuda for about the last two months straight and i think this is awesome because if you're not gonna boost it, your other option is just to make it look cool. Everything in between is what seems pointless to me.. 

The ad calls the engine 'experimental', inferring that it's a factory setup, but I kind of doubt that...I'd say it was home made by someone.  There was a Hyper Pack induction system that was available over the counter at dealers, it had a long ram manifold with a single four barrel carb.

Mr_Asa said:

I just realized how much that 180° change in direction would berk up the flow of the fuel to half the cylinders. 

3' long tubular manifold would have most of the fuel condensing out before it got to the engine anyway.  You'd need a firehose of an acceleration pump for it to run well when cold.

Even with a boring old 318, that's a cool car!

Same car?  https://bringatrailer.com/2017/05/08/cross-ram-slant-sixthree-on-the-tree-1960-plymouth-suburban/

My first car was a 60 Plymouth suburban wagon, two door. It had a 225/3 speed column shift. Slowest car I've ever driven. Wish I still had it, but the original owner liked driving it on New Smyrna Beach, so it was pretty rusted.

The regular four door wagon looks weird to me. Of course, that's since I was used to the two door.

In reply to stuart in mn :

For reference, here's a Hyperpack in an early Valiant:

The package came with cast-iron headers, cam, and a 4-barrel.  Advertised at 195 horsepower.

The heat from the exhaust doesn't effect gas in the carb?  Vapor lock?

914Driver said:

The heat from the exhaust doesn't effect gas in the carb?  Vapor lock?

Probably not.  Most I6 engines are not a cross flow design so the exhaust ports are immediately next to the intake.  A simple plate, between carb and intake, that passes coolant through it is usually sufficient to prevent vapor lock.  Any of these that have such a massive air gap between the exhaust and intake probably dont need to worry about it.

Neat visually... but I'm not sure why.

FWIW, you can still get an Offenhauser 4 barrel intake from Summit.

Although personally, I'd prefer a triple Weber set-up from Pierce:

$1600
 

914Driver said:

The heat from the exhaust doesn't effect gas in the carb?  Vapor lock?

Most inline sixes of the era actually used the top of the exhaust manifold as the floor of the intake manifold, like the way the gas tank in a Ford was the trunk floor.  Kept the fuel vaporized.  They'd still have two lean cylinder and two rich cylinders even with that effort.

Vapor lock is when the fuel pump can't pump fuel because it is boiling between the pump and the tank, usually on the inlet side of the pump itself.

914Driver said:

The heat from the exhaust doesn't effect gas in the carb?  Vapor lock?

The exhaust manifold actually bolts to the bottom of the intake as a preheater. 

 

In reply to slantvaliant (Forum Supporter) :

That's more HP than the 273 that would've been the base V8!

Best intake for that engine I have seen was a home made triple SU set up (don't recall if they were 1 1/2" or 1 3/4".)

Apparently worked really well, too.  Pretty as that shot is, it clearly isn't the path to optimum flow......