For use in Honda VTEC engine blocks using aftermarket / forged pistons. Most aftermarket pistons do not clear the OEM oil squirters which can result in contact & engine damage if not removed. Our bolts are designed with a tapered seat to ensure proper sealing. Each Kit Contains:(4) Ultralight Titanium 12-point M8 x 0.75mm block-off bolts*Torque to 12ft-lbs with red thread locker Benefits: Increased engine oil pressure Reduced oil aeration from crankshaft windage Eliminates clearance issues with aftermarket pistons Confirmed Fitments: B-Series VTEC, K-Series & S2000 F20C/F22C1 engine