Large TruckMy truck is bigger than yours. The forum for 2+ ton trucks (all years), COE's, Louisville's, Big-Job's etc.
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Those would be 370 and 429 motors. Not SAE patterns, but the same pattern as the Ford car and light truck 429/460 motors. From what I can gather, they used an adapter plate to mate those engines to SAE patterned Allison transmissions. I can't find any specifics doing a search, other than the reference to the plates. I can't find a plate, for example. A school bus with a 370 and an automatic would be a likely suspect for a plate according to one source.
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