Sounds like you are asking about the VL1500-LC Intruder. V-twin cruiser, 1462cc's (I believe), was Suzuki's top of the line (cruiser) and in many ways still is.
Lot's of torque and one of the most comfortable bikes I sat on before purchasing mine. A lot of owners swear that the "LC" stands for "Lounge Chair" even though Suzuki claims it means "Legendary Classic".
I have had several passengers on with me and every one has commented on how comfortable the LC is for the passenger, too.
Here is a pic of mine.