rigidchop wrote on 07/27/08 at 12:54:12:none of the above really. its been around longer than the current v twins, and doesn't share any engine components with the dr that i know of, except the oil filter. i'm sure others will chime in as well.
Yes, you were right. Intruder 1400 was introduced in 1987 and all the DR singles had shorter stroke plus a few of them had SACS oil cooling.