Early A K-member help

I admit I'm weird...I like my 1960 Valiant drag car because it's different and cool. Problem is there aren't many performance parts available for it. I'm looking to upgrade the front suspension/k member due to the high speeds I am running (120 mph). There are plenty of tubular kits out there but they are all for later model "A" bodies. I have tried to no avail to find manufacturing specs on the K member for my car and see how it compares size-wise to the later model A bodies. Anyone out there know how long (years) this K member went until it was changed in size? Or any ideas, perhaps something I haven't thought about. Thanks

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