ATS Fire Ring Kit for Ford (1999-03) F-250/F-350/F-450 Super Duty 7.3L Power Stroke

ATS Fire Ring Kit for Ford F-250/F-350/F-450 Super Duty 7.3L Power Stroke ATS Fire Ring Head Kit (Parts Only), includes fire rings and gaskets. Kit will eliminate head gasket problems at higher boost levels. ***NOTES: • Requires cylinder head machine work before installing. • Must install head stud kit (sold separately) to ensure proper clamping force.