Re: Packard 445/473 V12

Posted by Owen_Dyneto On 2015/2/4 15:45:38

Thought the 320 and 385 share the same engineering fundementals and design and look much the same externally and internally, they share very little in common with regard to interchangeable parts. Oil pan, crankcase, cylinder block, cylinder head, etc. are longer on the 385 engine. Connecting rods, though they are the same stroke, are different as obviously are the crankshaft, camshaft, valves, pistons and pins, water pumps, etc. Factory pistons for oversizes were to 0.045" on either bore.