My frame for the most part is a c-channel frame, but forward of the x frame around the engine it is boxed in from the factory. The first 1/4" plate is about 2" wide and starts at the top of the frame ,has a 90 degree bend and contacts the frame at the bottom end. I welded the first plate at the top, at the bottom where it contacts the frame , then added another 1/4 " filler plate horizontal of the frame to the plate to tie it in. I used frame mounts off of my 68 GTO which is a 3 bolt frame mount at the other end. The front crossmember is way too far forward to use my mounts. Thats where originally the front mount off of the timing cover mounts and the newer 389 is a side mount engine.I could have used a front engine plate to mount it to the front timing cover and may still install one for extra stability. Spotts performance had a decent looking one for under $100 bucks.
I was going to make a crossmember , but it was easier to make the 2 frame stubs.Ans i'll Still have to add in a rear crossmember for the trans.
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Illinois Outlaw Gassers
6.27@107
9.97@131
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