Future Motorsports Billet I Beam Connecting Rod Set for Toyota 2JZ Engines. We are extremely excited to offer this Billet I Beam connecting rod. Its been used in a few of our built engine programs and have held up really well in those applications from high horsepower street motors, drag and circuit and drifting. Our Billet I-Beam connecting rod is designed for those who prefer that traditional design over the H-Beam style. The I-Beam is a proven configuration that is very popular among the forced induction crowd and offers added beam clearance for stroker applications without sacrificing strength. Grade Tested (X-Ray & Sonic) 4340 Billet Steel ONE Piece Forging. Quenched and Heat Treated Shot Peen Hardness Treated (38HRC) For use with ARP 2000 Series Bolts or ARP Custom Age 625 Plus Series Bolts Silicone Bronze Pin End Bushes Balanced to Within a /- 1 Gram Tolerance Per Set Bore Diameters to Within /- 0.0001" Tolerance Sunnen Honing Machines Along with Sunnen Diamond Honing Tooling are used for both Big & Pin End Machining and Sizing *100% CNC Profiling Features ARP2000 bolts as standard, ARP 625 Custom Age bolts are available as an upgrade for an additional cost. Further popular applications will be released in the coming future for Honda, Nissan, Mitsubishi, Subaru and BMW.