The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground-washers are included with each kit.
Pertronix Electronic Ignition Conversion Kit 1641; for 71-76 Toyota 4cyl
1997-2000 4Runner Tacoma Toyota 4cyl 2.4 2.7 Throttle Body OEM
ARP For Toyota Flywheel Bolt Kit
ARP for Toyota Main Stud Kit 203-5403
ARP for Toyota Supra 2JZA80 main stud kit 203-5405
