I'm new here and I'm planning on a Cummins swap in a 1991 K5 blazer. I've a got a few questions... Are the frames from a 91 the same as an 87? Screaminseeman makes a crossmember for the 87's but it doesn't say anything about if it could fit on a 91. Also would an air to water cooler be reliable for a daily driver? Also any other tips would help out a lot. My father's a welder and he'll be helping me box the frame and just help guide me throughout the build. Again any tips would be greatly appreciated
