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Dana Greeley wrote: > I've read that all 1964 1500S vw's were high compression with "domed" > pistons, but also read that there was an option for a low compression engine. Was there no option for this in 1964? Yes, there was an option for a lower compression dual carb 1500S in 1964. > This is in regards to a Canada Car, 1964, 1500S, Notchback. I'm not sure if VW of Canada specified lower compression for the Canadian market in 1964-65 or not. > Perhaps I need to look for an "R" or "N" near the engine number - > which would be near the split on the case. This letter code should indicate the lower compression 1964-65 engine, but removing the heads would be the only way to tell for sure. A 1500S with lowered compression would have flat pistons instead of domed. Dished pistons (M240) were used to lower compression on the 1500N. This is assuming that the original pistons are still there, which is unlikely unless the car has very low mileage. Scott 62 343, 65 361 ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/