Frame Brackets

[MNKelly]

I own a 1977 Chevy caprice classic 2 dr coupe. My question concerns the 2 brackets bolted to the frame and extend to the front engine crossmember. There is one on each side consisting of heavy tubular rods measuring 3/4" diameter. approx. 201/2" long and are attached at each end with 5/8"-grade 8 bolts w/7/16" nuts.
I removed the factory 305 engine and installed a mildly modified 454 engine backed with a 700R4 tranny and a posi tract rear end out of a 95 caprice car. I installed long tube headers and these braces on the front that I described above were removed because they interfered with these headers.
Will this present a problem down the road with my car.What is the technical name for these braces.
Any help will be appreciated.
Thanks

 

[Tuffregal83]

I think they were put there to stiffin up the frame I know some Gbody cars had them and a lot that didn't. If you can try to fit them back in or make some mods to them

 

[Shortfuse]

I had to modify mine when I installed headers. They do a good job of stiffening things up so I would put them back. I notched mine to get them to fit but your headers are probably larger being it's a big block. They can be easily fabed from steel tubing or angle iron. You are putting extra stress on that area as it is so I would not leave them off.