Heavy-Duty Machined Aluminum. Fits Chevrolet. S/B, V6/90, B/B. Includes Clamp, Stainless Steel Stud, Nut and Washer. Product Features:Heavy Duty Stud Mount ModelMade from High-Quality AluminumPolished FinishFits Chevy V8/V6 EnginesStud, Nut and Washer Included