Re: mystery switch and mystery noise

Posted by BH On 2011/12/24 17:30:23

Howard -

Just to clarify, the chart that I composed was for 1952 (25th Series) and was derived from factory Trade Letters - one of which cites the reduction in price together with omission of oil filter from the "300" 327 cu. in. engine package (OE).

Based on the three available letters from that time frame, the separate offering of oil filter (OF) equpiment was unchanged throughout the 25th Series (1952) run - optional on 200 and 200 DeLuxe, but standard on 250/300/400. Hydraulic tappet (HT) equipment was also offered separately from the 300 engine (OE)package and also remained unchanged throughout the run (1952) - again, optional on 200 and 200 DeLuxe, but standard on 250/300/400.

The ommission of the oilf fitler form the OE package makes no sense, but it is what it is. Could be there's another Trade Letter that we don't yet have.

Now, I've never seen any Trade Letters for 1951 (24th Series) models. However, these codes were previously provided in another document, 24th-25th Series Factory Production Options, from Dave Czirr (Owen Dyneto), covering 1951 as well as 1952.

Taking BdeB's parts book reference into consideration, together with aforementioned newsletter articles, it seems to me that the "300 engine" and engine "Suffix H" refer to two different engines - that all 327s engines had hydraulic tappets, but "Suffix H" was applied only to those 288 engines that included hydraulic tappets.