Kaizen Motorsports ARP 1JZ 2JZ FLYWHEEL BOLTS MWR Bolt Set (8) Toyota Lotus 1ZZ 2ZZ 2GR 2ZR Flywheel OEM TTY 2RZ 2.4L Flywheel Bolt Kit Genuine, Set of 10 Yota1 Performance, Inc. Toyota 1.8L 1ZZ Engine High Quality 4 Cylinder Assembly Connecting Rods compatible for Toyota 1ZZ FE,1ZZ 2ZR FE 1.8L Engine. All Pro Series flywheel bolt kits feature an exclusive flat 12 point head design and a larger than stock underhead radius for increased strength. Each bolt is centerless ground to ensure the bearing surface is perpendicular to the threads creating equal load distribution and are nominally rated at 200,000 psi. Optimum design, enhanced reliability and increased strength are the main attributes of ARPs Pro Series flywheel bolt kits. Fits Toyota 1. 8L 2ZZGE 4 cylinder Socket Size(s) 5 8 12pt UHL 0. 875 Thread Size M10 x 1. 25