Re: engine question

Posted by DavidPackard On 2016/7/12 19:20:30

During manufacturing drilled passages are machined in the engine block effectively connecting the main oil gallery to each main bearing. These threaded plugs are low on the right side of the block and there will be one drilled passage per main bearing. Take a look at pages 2 - 4 in the Performance section of the 1948 Fact Book (on this site). You can see the threaded plugs and centered oil pump (distributor) on the 356 engine, and the 'forward' located pump on the 327/288 engines with fewer threaded plugs. On page 7 in the same section is a photo of a bare 327/288 engine block. You can see the 5 main bearings and the forward location of the distributor bore. Likewise on page 21 is a graphic describing the lubrication system, again the 327/288 engine is featured in this diagram, the cross drilled passages are highlighted.
The location of the oil pump / distributor, or the number of those little threaded plugs should confirm the engine model type . . . not necessarily the displacement, but the model type without question.
dp