Thanks again guys. It's a 3100. It's been fully restored to original except the bearings and rods were replaced in the 216. It's got 1100 miles on the motor now. I want it to look original, so I would like to keep the enclosed drive shaft. I even replaced the chrome wheels and new tires with powdercoated rims and chevy hubcaps. I've always been into old corvettes, so this is the first old truck I've had. I love it. I will look at Patricks.