FTA, this is a hot rod rebuild. Lot of cool pictures and discussion. Lot of this kit hasn’t been seen in 40 years.

The Big Blue Beast

A custom IBM 5160 PC/XT-486 system - quite possibly the highest-end and most capable PC/XT-based system, ever.

Disclaimer: This is not a stock IBM PC/XT, it is 'hot-rod' edition. It is classified as an XT-486 because it is a vintage build clearly based on an IBM PC/XT 5160 that uses mostly 30+ year old vintage retail components that were originally intended for use with an IBM PC or PC/XT. The IBM and third party components remain intact and unmodified, including the original PC/XT 5160 system board, BIOS and memory, which is the heart and soul of an IBM PC/XT. It is also, by virtue of the 80486 CPU upgrade, a 486-class system. This project is intended to achieve the most functional, fastest, feature-rich, and application-capable system in aggregate, ever, based on an original PC/XT and PC/XT motherboard. This is not a system for absolute 5150/5160 purists.