19000 series B&S engines were generally rated for 8.0 or 8.25 hp depending on the flywheel used and application. They are decent engines. The older non-magnetron ones are a real pain in the you know what. The coils would always go bad, mimicking poor carburetor adjustments. The proper magnetron replacement coil is a B&S part number 398811. They are about $35 a piece. If you plan on running one of these engines, they are a NECESSITY
Chris