Hemi frame mounts

[ceedog]

is there a place to by the frames mounts for a 426 Hemi? Or if someone has patterns? I could make the patterns off my 66 frame thought it would be easier if made already.

 

[Mopar426power]

Kramer auto makes hemi K-frames for 426 hemi motors

 

[pschlosser]

is there a place to by the frames mounts for a 426 Hemi? Or if someone has patterns? I could make the patterns off my 66 frame thought it would be easier if made already.

the crossmember that goes underneath and across the engine, from left-to-right, is in the shape of a "K" and often called a K-member, or K-frame. The "engine brackets" that connect the engine to the K-frame vary depending on engine type. But also, the attachment points on the K-frame connecting to the engine mounts, they too can vary depending on the engine.

I am unaware of anyone selling the bare metal mounting points for the K-member, as they are welded in place. Further, because the larger capacity oil pan hangs down lower on the big block (426/440) there is a cool skid plate welded to the K-frame.

If your K-frame is not compatible with the 426 Hemi motor mounts, you have a couple of options, such as winging it and fabricating your own. Another option is having your K-frame mounting points modified for the Hemi motor mounts. But if you want easy, and perhaps certainty other OEM-like parts, like the air cleaner and OEM-like hoods, will fit without clearance issues, you may be better off buying a 426 Hemi K-frame, like Mopar426power suggests.

 

[540HemiCuda]

Try these guys: Products - SS and AFX

If they don't have them, they will know if ANYBODY does. I know the parts are out there because I bought them when I put the KB Hemi in my '68 Dart because using a 'kit' was on the ONLY way that Dart was going to swallow that Hemi. And I used the original /6 K as the base after clearing off the /6 mounts.

Now if you are actually wanting to try to go directly to the frame without a K, that is a whole different animal. Remember that the K is a large strong part that plays a key role in tying the entire front end of the car together and as such simply cannot be eliminated without some other way of duplicating it's role.

As an alternative, you may consider 'elephant ears'. Google those up for an example.

More than one way to 'skin this cat', but all raise additional issues that can be difficult to resolve to your satisfaction.

Good luck!

 

[Challenger RTA]

A very dim light came on about this. This isn't done every day. I had to go look it up. Footnote #39

 

[Challenger RTA]

Mopar engines are typically offset to the passenger side to provide clearance for the steering box and to improve driver footwell space. This offset can vary by model and year, often around 5/8 inch to 1 1/4 inches.

Search Results​

• engine offset to drivers sidedodgecharger.com
• Engine offset?forbbodiesonly.com

Mopar Engine Offset Explained​

Mopar engines, commonly associated with Chrysler, Dodge, and Jeep vehicles, have a specific design consideration regarding engine offset. This offset primarily refers to the positioning of the engine within the engine bay, which impacts everything from vehicle handling to component clearance.

Reasons for Engine Offset​

1. Clearance for Steering Components: The offset allows for necessary space between the engine and the steering gear. This minimizes the chances of interference between the two parts during operation.
2. Driver Comfort and Ergonomics: An offset engine can enhance driver space in the footwell, making it more comfortable for the driver, especially in sports cars or muscle cars.
3. Weight Distribution: Strategically offsetting the engine can improve weight distribution across the vehicle, contributing to better handling characteristics and overall performance.

Typical Offset Measurements​

The engine offset for Mopar vehicles generally varies by model and year. Here’s a rough guide to common offsets:

• Classic Mopar A-bodies (e.g., Dart, Valiant): Often has an offset of about 5/8 inch.
• B-bodies (e.g., Charger, Coronet): May have a larger offset of around 1 inch.
• E-bodies (e.g., Challenger, Barracuda): Typically about 1 to 1.25 inches.

Impact on Engine Swaps and Upgrades​

When considering an engine swap or aftermarket modifications, it's essential to account for this offset. New engine mounts or modifications to the existing ones may be necessary to ensure proper alignment and function.

Additional Considerations​

• Transmission Alignment: The engine offset may also influence how the transmission aligns with the driveshaft, affecting the overall drivetrain performance.
• Custom Builds: Enthusiasts undertaking custom builds need to evaluate offset thoroughly to ensure compatibility with other components.

By keeping these factors in mind, Mopar enthusiasts can better understand the significance of engine offset in their vehicles. If you’re planning modifications or restorations, it’s crucial to research specific model characteristics for accurate measurements and fitment.

 

[ceedog]

Yes, I know all the variables with ‘k-frames’ and their uses. I do like the measurements given on spacing (I’ll copy that). I have two cars (actually 3 but not in discussion) (64 Savoy & 73 Barracuda) both have the b-engine mounts. With the 64 I have a set of conversion mounts (bought 20 years ago) to put the 572 Hemi in, no problem on that. The 73 was going to be a 440 but I have an extra 426 so I’ll use it. I did some checking last night, the passenger 440 mount can be used by drilling out the ears on the Hemi so that side will be ok with the k member corresponding mount. Driver side will require a custom bracket mounting on the 3 block studs then to adapt to the rubber mount to frame. 440 and Hemi blocks are the same till one gets to the heads. The headers could require some rework on front pipes but no biggy. Much cheaper route using 440 insulators than buying new frame brackets AND engine mounts-insulators ($600-800). As far as the skid plate, the 572 will have external oiling and deep pan, 73 will have the 8 qt pan. The 66 Belvedere has all the original stuff, mounts-pan-k-frame. Something to go by and yes I can fabricate most anything.
Thanks for all the info.