Need a measurement

need to know the distance between the upper front shock mount plate to the leading edge of the motor mount on the frame for a Dauntless V6. I have a '66 Tux frame with welded on motor mounts, don't look stock but what do I know? If you could measure from the rear of the upper mount (where it sits on the frame) to the mount, that would help me determine stock or not. Got a chance at a Dauntless for short money, if it's a bolt in I might have to do it.Thanks.