Was browsing through some sites the other day and come across this.


Art Morrison Enterprises is taking pre-orders for June shipments of their new B/E body K frame assembly. Its a coil over system with a front steer rack and what appears to be correct geometry ackerman utilizing C6 spindles. Because of the height of the spindle, it requires a minimum of 18" diameter wheel.

Link to the page if you want more info or to get a quote (no prices published yet): https://artmorrison.com/chassis/mopar-k-member/

Im up that looks bad ass

You sure that is fully E body applicable?
Wonder if those are 4.5" BC or 4.75" BC hubs?

Very interesting. I need more tire to make it an worthwhile upgrade.
I 'll contact Monday.
Thanks.

I like that the steering arms are not like the BS modified RMS setups with the cantilevered and spaced outer tie rod connection. Strange how the upper ball joint attaches upside down compared to our classics. The welds seem to look nice. It looks sturdy. does it weigh more than stock? It looks like it would.

I'm curious what their definition of correct geometry is, ie road course capable or drive straight for 1/4 mile and make the return road.

For those wanting turn and stop, Vette spindles would open up a huge assortment of big brake options and the coil overs would open up some real estate for headers to occupy. Does it use a Vette sway bar too?

Kevin

My impression was requiring an 18" wheel, they can get enough wheel back spacing to reduce tire scrub and maybe lengthen all the suspension linkage which normally is considered a plus. I can't see the pictured UCA being any longer though, the angled upper coil over mount seems to be rather unbraced, as bolting it the OEM Sheetmetal isn't worth much regarding rigidity, especially with road course springs, and the sway bar mounted so close to the inside pivot point really reduces the SB motion ratio. ie requiring a rather beefy/heavy bar. I do like the effort though.
One of my first questions is what wheel offset was this designed for and what is the max wheel width possible in any sizes over 17".
I see nothing leaning towards light weight 1/4 mile intentions other than better header clearance.

The crappy pictures don't clearly show the lower control arms. Could they be as shiddy as the RMS designs?

I personally never considered the decade plus old RMS IFS a handling improvement solution, which others inferred because of the replacing of the time honored TB's, It was more a weight reduction/header clearance improvement IMO. Nowadays for the money, handing/improved kinematics/better wheel combos must also be in the cards for the dollar ranges at play.

This was my upgrade for the RMS LCA Pic #7 https://board.moparts.org/ubbthread...rktion-on-steroids-long.html#Post1665054

Before I called this morning, I rethought my SB motion ration concern, being the SB has a relatively short arm acting on the LCA, it may not be much of a concern, it's all about the numbers anyway.
Take everything here with a grain of salt in that its still a work in progress it seems.
SB is maybe 1.375"D hollow, Wheel BC is 4.5" Not sure if hubs will allow for 14mm studs, needs large dia wheels to fit tall spindles, Not sure if hub/bearing packages are the SKF Tracker series (the HP vette bearings), the robustness of the upper coil over mount has been rethought I am told, it might come powder coated or bare, they are taking names/refundable deposits for orders, will gather wheel combos/widths, they have not yet test fitted it to an E body.

I am on the list.

Might ask about the oil pan too. Looks like maybe a rear sump is needed?

Let see, cut the front sub frame off and weld the new one on, are you comfortable doing that and getting it installed correctly without your car being on a chassis jig?
I'm not

Cab...that one looks like it bolts in place of the stock K member.

Yes,bolt on, steering column connection looks to be the only real custom fit that I see at this time with the project.

[I'm watching a new Heidts one being built into car now. Also getting the Independent rear setup.

SEMA type build.

Looks like a nicely thought out and executed design. The details always matter of course so I'd like to see how they handle the oil pan issue, header fitment, steering column integration, wheel size and backspacing, etc.

Troy is working out the bugs on a new Heidts front and independent rear during install.


The front IIRC is a wide track like most of these deals. So you end up with high backspacing front rims.

The rear will have a separate part numbers developed for 68-70 B-body Plymouth wheelbase and 68-70 Dodge wheelbase.

Yeah, all the modern stuff I've worked on is high offset. The OEM guys figured out that they could stuff a lot things inside the wheel so they moved the hub way out and use basically a flat faced wheel with a ton of offset. It seems to work but it is a big change from the way muscle cars were designed.

I agree.

And I don’t like the looks of it. Deep dish rims look racey to me.

Moon discs look racy to me and no one will see the rim

LIke this?