https://b58swapbible.com/blog Signed research dispatches on B48/B58 + ZF 8HP chassis conversions. Evidence-bounded. Not fitment claims. en-us Thu, 13 Aug 2026 12:00:00 GMT https://b58swapbible.com/blog/b58-swap-cooling-system-e9x https://b58swapbible.com/blog/b58-swap-cooling-system-e9x Fri, 07 Aug 2026 12:00:00 GMT Dual-loop architecture, why the stock radiator is not enough, bleed discipline, and the thermostat-housing failure point to catch on the stand. https://b58swapbible.com/blog/b58-swap-wiring-canbus-e9x https://b58swapbible.com/blog/b58-swap-wiring-canbus-e9x Fri, 07 Aug 2026 12:00:00 GMT CAN architecture, the merge structure, twisted-pair discipline, the wakeup line, and the immobilizer decision tree. https://b58swapbible.com/blog/b58-transmission-swap-8hp-e9x https://b58swapbible.com/blog/b58-transmission-swap-8hp-e9x Fri, 07 Aug 2026 12:00:00 GMT 8HP45 vs 8HP50 vs 8HP70, the controller decision, tunnel fitment, and the failures to expect. https://b58swapbible.com/blog/b58-vs-b48-swap-e9x https://b58swapbible.com/blog/b58-vs-b48-swap-e9x Fri, 07 Aug 2026 12:00:00 GMT Donor cost, weight, power ceiling, daily-driver math, and the integration trap that makes the cheaper engine less cheap than it looks. https://b58swapbible.com/blog/what-a-b58-swap-actually-costs-e9x-2026 https://b58swapbible.com/blog/what-a-b58-swap-actually-costs-e9x-2026 Fri, 07 Aug 2026 12:00:00 GMT Donor pricing, the wiring budget nobody quotes, and three build tiers. Hidden line items that sink budgets. https://b58swapbible.com/field-notes/e30-program-ships https://b58swapbible.com/field-notes/e30-program-ships Thu, 06 Aug 2026 12:00:00 GMT The 183-page E30 customer edition left the bench: vector appendix, 177 records, exact-configuration verification for every E30 body style.