Thread: big block in a 61 2 dr falcon

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I doubt if anyone is gonna have info, it isn't something that's done every day.

I think if I were gonna tackle it, I'd strip all the suspension off the unibody and use the front (that would accept a big block) and rear clip off a later car, connecting them with 2" x 3" rectangular tubing. I'd cut 2 channels into the floorpan of the car and weld the tubing to the floorpan the full length of the car between the clips. Of course, I'd have the body well supported and leveled so that it would not tweak during all this. It is doubtful you'll find clips that are as narrow as the Falcon, so plan on some fender well massaging and maybe some fabricated flares. Choose your wheels carefully for maximum backset.

Using clips from a mid-70's or later donor car would give you front disc brakes. I'd also get the brake pedal assembly, master, booster and valving from the donor.