The crankshaft part numbers are consistent between the 148 and 159 engines of the same vintage:
The early 430s and 530s parts manuals call out part number G11183 for the crank in both engines.
Late serial numbers call for part number A37210
I dont know if they are truly different or the early part number was an "assembly" number that included the crankshaft and the pilot bearing??
The blocks are the same dimension (roughly 1 1/2" shorter than the 188 diesel or the 188 gas (630)), but the part numbers are always different from early through late models:
Early 430 (148ci) - G2034 or G11911 or G10506 530 (159ci) - G2089 or G11957 or G10507
One of the reasons the castings changed over time was to move the oil filter from aft of the distributor forward under the PS pump.
Camshafts show a different part number between 148 ci (G2055) and 159 ci (G2049) engines, but the cam bearing sets are the same part number so the dimension of the shaft must be the same but the lobes might shaped different??? The camshafts are consistent from early through late models.
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