Notes on tuning 1930 parallel pushrod 250, 350 and 500 Blackburne racing engines. Re engineered by professional graphic designer from original booklet. OEC factory notes added. The superbly engineered parallel pushrod Blackburne racing engine was the preferred power unit for many of Eric Fernihoughs Brooklands racing exploits. It was also used by OEC in their 1933 to 1935 Lightweight TT machines. Cotton was anothert manufacturer to use Blackburne racing engines. These engines are very rare and information even scarcer. Looks identical to the original.
Finished size A5. $AUD25