Sidewinder Jerry
Well-Known Member
I know my iron sleeved Robin Subaru 35 has really held up.Your Briggs engine, was that with iron block and iron cylinder? If so, after several heat and cool cycles the crystalline structure of the iron aligned itself in such a way that made the engine very strong and it ran very straight. I heard that those iron Briggs engines ran forever. I think they stopped making those because of power, efficiency or pollution issues?