So far, I've been unable to find anyone that knows of or has a smaller pinion for the 168 for the stomp starter, No problem with the solinoid starters One was/is on the engine now and works great but this is for a 1940 FIA 4.5Litre GP car which I want to keep every bolt (except the insides) absolutely 1940+/-ish and in agreement with the FIA and SCCA so it can race without hassles. It was made of the best american production engine at that time the GMC! it has a GM C/r 4 speed solid front and rear axles with half elyptics, I 've the body off for painting the chassis and other minor attentions, I'll send pictures when back together in a week or two.