SPR9771 025 SUIT 4.020"+.005 BORE. Speed-Pro piston rings dominate the racing industry with technically advance design, dedicated research and superior quality. We don't rely on advertised gimmicks and "trick of the week" deigns. Our rings deliver optimal cylinder sealing under true operating conditions, and provide maximum oil control. Speed-Pro pistons rings deliver superior performance under gruelling race conditions every weekend, on oval tracks and drag strips world wide. Put our performance heritage, racing experience and engineering superiority to work in your car. V8. Bore (in): 4.020 in. Bore (mm): 102.108mm. File Fit: Yes. Top Ring Included: Yes. Top Ring Thickness: 1/16 in.. Second Ring Included: Yes. Second Ring Thickness: 1/16 in. Oil Ring Included: Yes. Oil Ring Thickness: 3/16 in. Oil Ring Tension: Standard. Gapless: No. Top Ring Material: Iron. Top Ring Facing Material: Plasma-moly. Second Ring Material: Iron. Second Ring Facing Material: Cast iron. Oil Ring Material: Stainless steel. Quantity: Sold as a set.
