Riley Head Conversions For Ford Model A Engines – Reblog from Steve McKelvie

I recently posted a report on Riley Imp cars.  While putting that report together with Riley expert David Evans, I was reminded of a rally car that frequently takes part in Time-Speed rallies in the northeast USA and recently won the Sportsman Class in the 2018 Great Race.  However this car is not a Riley, it is a 1930 Ford Model A speedster.  The car is shown below at the 2018 Great Race.

1930 Ford Speedster Of Keith Wallace/Rick McIntosh In The 2018 Great Race

During the Great Race there was a number of rally participants thought that the car was a Riley due to the badging/name on the car and the general knowledge that many Riley cars were raced.

There were two types of four-cylinder engines that were used in the Ford Model A cars and in other Ford cars of the early 1930s.  These engines have their valves…