Very early 80s.I believe they were optional in the mid size B-O-P cars.Put out a whopping 120hp
That's not bad considering the Olds 260 had about 105hp
My parent had a '79 cutlass salon w/a 231,after alot of engine trouble I found a olds 260 from a '78 cutlass to put in.The front end sat at least 1 inch lower but the car would bark the tires(slightly)This was my first V8 to drive and then I graduated to a 389 in '82
