70 Challenger prep for Hellephant tips

[Paul113]

Im looking to go for it and put the 426 Hemi Hellephant in my 70 Challenger. What other frame stiffening or body mods do you all suggest to accept all this new power, already have the frame stiffeners installed. Thanks

 

[DrEamer]

First if all, welcome to the forum. Please be sure to show us pictures of your car! Since you have sub frame connectors, the other options are torque boxes, radiator core support and inner front fender braces. All the parts can be bought at US Car Tools, or XV Racing Products LLC. I prefer the XV front fender braces, and dealing with them if you have a problem, but XV does not make toque boxes. You also might want to talk to XV since they make a complete front and rear suspension to help handling all that power.

 

[mmissile]

Depends on what you're gonna do with the car. Just that simple.

 

[AUSTA]

I used US Car tool kit also fitted 2.5 inch tubing in rockers (good Fit) sealed the rockers then done a 3/4 back fill the with structural epoxy also had to widen the tunnel for a Tremec fitted a 1/2 tool steel brace to the top.
too handle the new Ritter 426

 

[aussiemark]

That is some fine craftsmanship there Brian, that car will be as ridged as a tank.

 

[Paul113]

Thanks Brian! Any chance I could get some more detail photos? Thanks

 

[Mrb3]

Im looking to go for it and put the 426 Hemi Hellephant in my 70 Challenger. What other frame stiffening or body mods do you all suggest to accept all this new power, already have the frame stiffeners installed. Thanks

I just put the 426 gen 3 hemi in my 70, I went with RMS front suspension, and US car tool mini tubs and frame stiffening . If your going to do it, do it right the first time,

 

[Paul113]

Brian, dumb question. What is the 2.5” tubing for? Is it exhaust? Thanks.

 

[Mrb3]

First if all, welcome to the forum. Please be sure to show us pictures of your car! Since you have sub frame connectors, the other options are torque boxes, radiator core support and inner front fender braces. All the parts can be bought at US Car Tools, or XV Racing Products LLC. I prefer the XV front fender braces, and dealing with them if you have a problem, but XV does not make toque boxes. You also might want to talk to XV since they make a complete front and rear suspension to help handling all that power.

 

[moparleo]

Looks like a bad case of camera stutter......Car is coming along fine .

 

[Mrb3]

sry about the pics, have no idea what happen, I finally got the wiring and gas tank, no to mock it up, its a 426 crate engine, 727 trans, goiong to add a whipple on it, should be around 1000 hp when done

 

[Mickie Lulu]

Fantastic car/work!
The "V" behind the rear seat needs to be tied to the package tray and then to the floor in the corners. There is a lot of flex in that part of the car that gets overlooked by most.

 

[Mrb3]

Fantastic car/work!
The "V" behind the rear seat needs to be tied to the package tray and then to the floor in the corners. There is a lot of flex in that part of the car that gets overlooked by most.

Ok, thank you the help.

 

[6PKRTSE]

Nice build. I like it.

 

[MerlinsMopars]

Whew! gonna need to glue your hands on the steering wheel with that 1. That's gonna be awesome! Salute to that build.

 

[fasjac]

may I ask what rear suspension you’re going to use?

cool car