4.6 Mod 4340 Ultralight Forged Steel

For use in very high rpm engines, two barrel oval track, and drag motors with no power adders. Designed to provide maximum performance with a minimum of rotating mass. Painstakingly manufactured from premium 2 piece 4340 steel forgings, which will insure proper grain flow for maximum strength. Then fully machined on the latest in CNC equipment to ensure dimensional accuracy. Lastly ARP 8740 rod bolts are installed through the dowelled rod caps.