ard conrods 4g63 2.0 h type (no rod bolts) our h-beam conrods have proven their strength and reliability in countless of high powered tuned cars that are used in pro drag racing and other endurance and circuit used cars. length 150mm big end.dia x length 48 x 26.4mm small end.dia x length 22 x 23mm (22mm diameter) material sncm 439