Bruce, Many years after all the green heads had been discontinued K&B marketed an engine called the "Stallion 35", stock no. 9041. This engine is the same as the old green head Torpedo 35. You might try MECOA. for the back plate gasket; part no. 3512, and the prop drive washer; 3525. Or I'll sell you my Stallion for $10.00, plus postage. Greg